net.programmes/developer-tools

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

65+ free in-browser developer tools (JSON, Base64, JWT, hash, regex…) callable over MCP.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "developer-tools": {
      "url": "https://programmes.net/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (87)

• json read-only

  Format, minify, validate and convert JSON. Operations: "format" — Pretty-print JSON with a configurable indent.; "minify" — Strip all insignificant whitespace from JSON.; "validate" — Check whether the input is valid JSON, reporting the error location.; "repair" — Best-effort repair of common JSON mistakes (trailing commas, single quotes, unquoted keys).. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — format — Pretty-print JSON with a configurable indent. minify — Strip all insignificant whitespace from JSON. validate — Check whether the input is valid JSON, reporting the error location. repair — Best-effort repair of common JSON mistakes (trailing commas, single quotes, unquoted keys).
  • input — string — format: The JSON text to format. minify: The JSON text to minify. validate: The JSON text to validate. repair: The malformed JSON text to repair.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• xml read-only

  Pretty-print or minify already-serialized XML, and highlight it. Operations: "format" — Pretty-print XML with the chosen indent (server-safe string transform).; "minify" — Collapse whitespace between XML tags (server-safe string transform).. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — format — Pretty-print XML with the chosen indent (server-safe string transform). minify — Collapse whitespace between XML tags (server-safe string transform).
  • input — string — format: The serialized XML to format. minify: The serialized XML to minify.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• sql read-only

  Format and minify SQL. Operations: "beautify" — Beautify SQL with newlines before clauses.; "minify" — Minify SQL to a single line.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — beautify — Beautify SQL with newlines before clauses. minify — Minify SQL to a single line.
  • input — string — beautify: The SQL to beautify. minify: The SQL to minify.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• html read-only

  Format, minify and validate HTML. Operations: "format" — Pretty-print HTML.; "minify" — Minify HTML (strip comments and collapse whitespace).; "validate" — Check HTML for unclosed/mismatched tags.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — format — Pretty-print HTML. minify — Minify HTML (strip comments and collapse whitespace). validate — Check HTML for unclosed/mismatched tags.
  • input — string — format: The HTML to format. minify: The HTML to minify. validate: The HTML to validate.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• base64 read-only

  Encode and decode text in Base64, Base64URL, Base32, Base58, Base85 and hex. Operations: "encode" — Encode text into the chosen format.; "decode" — Decode text from the chosen format back to plain text.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — encode — Encode text into the chosen format. decode — Decode text from the chosen format back to plain text.
  • input — string — encode: The plain text to encode. decode: The encoded text to decode.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• url read-only

  Parse, validate and normalize URLs. Operations: "parse" — Break a URL into its component parts.; "validate" — Validate a URL and run basic security/heuristic checks.; "normalize" — Normalize a URL (drop default ports, sort query params, strip trailing slash).. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — parse — Break a URL into its component parts. validate — Validate a URL and run basic security/heuristic checks. normalize — Normalize a URL (drop default ports, sort query params, strip trailing slash).
  • input — string — parse: The URL to parse. validate: The URL to validate. normalize: The URL to normalize.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• jwt read-only

  Decode JWT header and payload (no signature verification). Operations: "decode" — Decode a JWT into its header, payload and signature.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — decode — Decode a JWT into its header, payload and signature.
  • input — string — The JWT token to decode.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• html-entity read-only

  Encode and decode HTML entities (named, decimal, hex). Operations: "encode" — Encode text into HTML entities.; "decode" — Decode HTML entities back to plain text.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — encode — Encode text into HTML entities. decode — Decode HTML entities back to plain text.
  • input — string — encode: The text to encode. decode: The text containing HTML entities.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• url-encode read-only

  Percent-encode and decode URL strings. Operations: "encode" — Percent-encode a string.; "decode" — Decode a percent-encoded string.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — encode — Percent-encode a string. decode — Decode a percent-encoded string.
  • input — string — encode: The text to encode. decode: The encoded text to decode.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• hash read-only

  Compute MD5, SHA-1/256/384/512, CRC32 and HMAC digests. Operations: "hash" — Hash text with the chosen algorithm.; "hmac" — Compute an HMAC digest (SHA algorithms only).. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — hash — Hash text with the chosen algorithm. hmac — Compute an HMAC digest (SHA algorithms only).
  • input — string — hash: The text to hash. hmac: The text to authenticate.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• uuid read-only

  Generate and inspect UUIDs. Operations: "v4" — Generate one or more random (v4) UUIDs.; "v3" — Generate a name-based (v3 / MD5) UUID.; "parse" — Parse a UUID and report its version, variant and (where present) timestamp.. Call with "operation" plus "input" (and "options" where relevant). Not repeatable: v4 returns a different result on each call.

  Parameters:

  • operation (required) — string — v4 — Generate one or more random (v4) UUIDs. v3 — Generate a name-based (v3 / MD5) UUID. parse — Parse a UUID and report its version, variant and (where present) timestamp.
  • input — string — v4: Unused (pass an empty string). v3: The name to hash. parse: The UUID to parse.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent no · open-world no

• password read-only

  Generate strong random passwords and estimate their strength. Operations: "generate" — Generate a cryptographically random password.; "strength" — Estimate the entropy and strength bucket of a password.. Call with "operation" plus "input" (and "options" where relevant). Not repeatable: generate returns a different result on each call.

  Parameters:

  • operation (required) — string — generate — Generate a cryptographically random password. strength — Estimate the entropy and strength bucket of a password.
  • input — string — generate: Unused (pass an empty string). strength: The password to evaluate.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent no · open-world no

• bcrypt read-only

  Hash and verify passwords with bcrypt. Operations: "hash" — Hash a password with bcrypt at the given cost.; "verify" — Verify a plaintext password against a bcrypt hash.. Call with "operation" plus "input" (and "options" where relevant). Not repeatable: hash returns a different result on each call.

  Parameters:

  • operation (required) — string — hash — Hash a password with bcrypt at the given cost. verify — Verify a plaintext password against a bcrypt hash.
  • input — string — hash: The plaintext password to hash. verify: The plaintext password to check.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent no · open-world no

• random read-only

  Generate cryptographically secure random strings. Operations: "generate" — Generate a secure random string from a chosen pattern.. Call with "operation" plus "input" (and "options" where relevant). Not repeatable: generate returns a different result on each call.

  Parameters:

  • operation (required) — string — generate — Generate a secure random string from a chosen pattern.
  • input — string — Unused (pass an empty string).
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent no · open-world no

• timestamp read-only

  Convert and inspect Unix timestamps and dates. Operations: "to-date" — Convert a Unix timestamp (seconds) to a full date breakdown.; "parse-date" — Auto-detect and parse a date/timestamp string.. Call with "operation" plus "input" (and "options" where relevant). Not repeatable: to-date returns a different result on each call.

  Parameters:

  • operation (required) — string — to-date — Convert a Unix timestamp (seconds) to a full date breakdown. parse-date — Auto-detect and parse a date/timestamp string.
  • input — string — to-date: The Unix timestamp in seconds. parse-date: A date or timestamp string (ISO 8601, RFC 2822, Unix, etc.).
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent no · open-world no

• color read-only

  Convert colors between HEX, RGB, HSL, HSV and CMYK. Operations: "convert" — Convert a HEX color to every supported color space.; "palette" — Generate a color harmony palette from a base color.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — convert — Convert a HEX color to every supported color space. palette — Generate a color harmony palette from a base color.
  • input — string — convert: A hex color, e.g. "#3b82f6". palette: A hex color, e.g. "#3b82f6".
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• number-base read-only

  Convert numbers between binary, octal, decimal and hex. Operations: "convert" — Convert a number from one base to all supported bases.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — convert — Convert a number from one base to all supported bases.
  • input — string — The number to convert (digits valid for the source base).
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• case read-only

  Convert text between camelCase, snake_case, kebab-case and more. Operations: "convert" — Convert text to a single chosen case.; "all" — Return every supported case transform at once.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — convert — Convert text to a single chosen case. all — Return every supported case transform at once.
  • input — string — convert: The text to convert. all: The text to convert.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• regex read-only

  Test a regex against a string and apply replacements. Operations: "test" — Find all matches of a regex pattern in a test string.; "replace" — Replace regex matches in a string.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — test — Find all matches of a regex pattern in a test string. replace — Replace regex matches in a string.
  • input — string — test: The test string to search. replace: The test string to transform.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• diff read-only

  Compute a line-by-line diff between two texts. Operations: "compare" — Diff two texts and return the lines plus statistics.; "unified" — Produce a unified-diff text between two inputs.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — compare — Diff two texts and return the lines plus statistics. unified — Produce a unified-diff text between two inputs.
  • input — string — compare: The original text. unified: The original text.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• lorem read-only

  Generate placeholder text in several styles. Operations: "generate" — Generate lorem ipsum (or themed) placeholder text.. Call with "operation" plus "input" (and "options" where relevant). Not repeatable: generate returns a different result on each call.

  Parameters:

  • operation (required) — string — generate — Generate lorem ipsum (or themed) placeholder text.
  • input — string — Unused (pass an empty string).
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent no · open-world no

• word-count read-only

  Count words/characters and compute readability statistics. Operations: "count" — Compute basic text statistics (words, characters, sentences, etc.).; "readability" — Compute readability scores (Flesch, SMOG, Coleman-Liau).; "keywords" — Compute keyword density for the text.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — count — Compute basic text statistics (words, characters, sentences, etc.). readability — Compute readability scores (Flesch, SMOG, Coleman-Liau). keywords — Compute keyword density for the text.
  • input — string — count: The text to analyze. readability: The text to analyze. keywords: The text to analyze.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• cron read-only

  Describe cron expressions and compute upcoming run times. Operations: "describe" — Produce a human-readable description of a cron expression.; "next-runs" — Compute the next N run times for a cron expression.. Call with "operation" plus "input" (and "options" where relevant). Not repeatable: next-runs returns a different result on each call.

  Parameters:

  • operation (required) — string — describe — Produce a human-readable description of a cron expression. next-runs — Compute the next N run times for a cron expression.
  • input — string — describe: A 5- or 6-field cron expression. next-runs: A 5- or 6-field cron expression.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent no · open-world no

• json-csv read-only

  Convert between JSON and CSV. Operations: "json-to-csv" — Convert a JSON array/object to CSV.; "csv-to-json" — Convert CSV to a JSON array.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — json-to-csv — Convert a JSON array/object to CSV. csv-to-json — Convert CSV to a JSON array.
  • input — string — json-to-csv: The JSON text to convert. csv-to-json: The CSV text to convert.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• markdown read-only

  Render Markdown to HTML, build a TOC and compute statistics. Operations: "render" — Render GitHub-flavored Markdown to sanitized HTML.; "toc" — Extract a table of contents from Markdown headers.; "stats" — Compute document statistics for Markdown/plain text.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — render — Render GitHub-flavored Markdown to sanitized HTML. toc — Extract a table of contents from Markdown headers. stats — Compute document statistics for Markdown/plain text.
  • input — string — render: The Markdown to render. toc: The Markdown to scan. stats: The text to analyze.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• yaml-json read-only

  Convert between YAML and JSON. Operations: "yaml-to-json" — Convert YAML to JSON.; "json-to-yaml" — Convert JSON to YAML.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — yaml-to-json — Convert YAML to JSON. json-to-yaml — Convert JSON to YAML.
  • input — string — yaml-to-json: The YAML text to convert. json-to-yaml: The JSON text to convert.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• json-ts read-only

  Generate TypeScript type declarations from a JSON sample. Operations: "generate" — Infer TypeScript interfaces/types from JSON.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — generate — Infer TypeScript interfaces/types from JSON.
  • input — string — The JSON sample to convert.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• contrast read-only

  Check WCAG contrast between a foreground and background color. Operations: "check" — Compute the contrast ratio and WCAG pass/fail for a color pair.; "best-text" — Pick black or white text for the best contrast on a background.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — check — Compute the contrast ratio and WCAG pass/fail for a color pair. best-text — Pick black or white text for the best contrast on a background.
  • input — string — check: The foreground color (#rrggbb, #rgb or rgb(...)). best-text: The background color.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• image-base64 read-only

  Build and parse base64 data URIs and embed snippets. Operations: "build-snippets" — Build HTML/CSS/Markdown snippets from an existing data URI.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — build-snippets — Build HTML/CSS/Markdown snippets from an existing data URI.
  • input — string — A base64 data URI, e.g. "data:image/png;base64,...".
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• gitignore read-only

  Generate a combined .gitignore from template keys. Operations: "generate" — Combine one or more template keys into a .gitignore.; "templates" — List the available .gitignore template keys.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — generate — Combine one or more template keys into a .gitignore. templates — List the available .gitignore template keys.
  • input — string — generate: Comma- or space-separated template keys (e.g. "node,python,macos"). templates: Unused (pass an empty string).
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• http-status read-only

  Look up and search HTTP status codes. Operations: "lookup" — Look up a single status code by number.; "search" — Search status codes by number, name or description.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — lookup — Look up a single status code by number. search — Search status codes by number, name or description.
  • input — string — lookup: The numeric status code, e.g. "404". search: A search query, e.g. "redirect" or "40".
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• slugify read-only

  Turn arbitrary text into a clean, URL-safe slug. Operations: "slugify" — Generate a URL slug from text.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — slugify — Generate a URL slug from text.
  • input — string — The text to slugify.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• chmod read-only

  Convert between octal and symbolic Unix file permissions. Operations: "octal-to-symbolic" — Convert octal permissions (e.g. "755") to a symbolic string and description.; "symbolic-to-octal" — Convert a symbolic permission string (e.g. "rwxr-xr-x") to octal.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — octal-to-symbolic — Convert octal permissions (e.g. "755") to a symbolic string and description. symbolic-to-octal — Convert a symbolic permission string (e.g. "rwxr-xr-x") to octal.
  • input — string — octal-to-symbolic: Octal permission string, e.g. "755" or "0644". symbolic-to-octal: Symbolic permission string, e.g. "rwxr-xr-x".
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• wifi-qr read-only

  Build the standard WIFI: payload string for a WiFi QR code. Operations: "payload" — Build the WIFI: payload string a phone scans to auto-join a network.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — payload — Build the WIFI: payload string a phone scans to auto-join a network.
  • input — string — The network SSID.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• css-minify read-only

  Minify or beautify CSS. Operations: "minify" — Minify CSS (strip comments and whitespace).; "beautify" — Beautify CSS (one declaration per line, indented).. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — minify — Minify CSS (strip comments and whitespace). beautify — Beautify CSS (one declaration per line, indented).
  • input — string — minify: The CSS to minify. beautify: The CSS to beautify.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• curl-converter read-only

  Convert a curl command into fetch / Python / Node snippets. Operations: "convert" — Parse a curl command and generate code snippets.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — convert — Parse a curl command and generate code snippets.
  • input — string — The curl command to convert.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• json-schema read-only

  Infer a draft-07 JSON Schema from sample JSON. Operations: "generate" — Infer a draft-07 JSON Schema from sample JSON. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — generate — Infer a draft-07 JSON Schema from sample JSON
  • input — string — the sample JSON
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• cidr read-only

  Parse a CIDR block into its network, broadcast and host range. Operations: "calculate" — Calculate the network, broadcast, mask and host range for a CIDR block.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — calculate — Calculate the network, broadcast, mask and host range for a CIDR block.
  • input — string — A CIDR block, e.g. "192.168.1.0/24".
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• user-agent read-only

  Parse a User-Agent string into browser, engine, OS and device. Operations: "parse" — Parse a User-Agent string into browser, engine, OS and device details.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — parse — Parse a User-Agent string into browser, engine, OS and device details.
  • input — string — The User-Agent string to parse.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• color-palette read-only

  Generate harmony, shade and tint palettes from a base HEX color. Operations: "generate" — Generate harmony, shade and tint palettes from a base HEX color.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — generate — Generate harmony, shade and tint palettes from a base HEX color.
  • input — string — A hex color, e.g. "#3b82f6".
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• password-strength read-only

  Analyze a password and estimate its entropy, strength and crack time. Operations: "analyze" — Analyze a password and estimate its entropy, strength and crack time.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — analyze — Analyze a password and estimate its entropy, strength and crack time.
  • input — string — The password to analyze.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• jsonpath read-only

  Query a JSON document with a JSONPath expression. Operations: "query" — Evaluate a JSONPath expression against a JSON document.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — query — Evaluate a JSONPath expression against a JSON document.
  • input — string — the JSON document
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• totp read-only

  Generate a time-based one-time password (TOTP) from a base32 secret. Operations: "generate" — Generate the current TOTP code for a base32 secret.. Call with "operation" plus "input" (and "options" where relevant). Not repeatable: generate returns a different result on each call.

  Parameters:

  • operation (required) — string — generate — Generate the current TOTP code for a base32 secret.
  • input — string — the base32 secret
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent no · open-world no

• data-size read-only

  Parse a data size and convert it to bytes plus decimal and binary units. Operations: "convert" — Parse a data size and convert it to bytes, decimal and binary units.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — convert — Parse a data size and convert it to bytes, decimal and binary units.
  • input — string — a data size like "1.5 GB" or "1024 KiB"
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• mime read-only

  Look up MIME types by file extension or MIME type. Operations: "lookup" — Search MIME types by extension or MIME type.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — lookup — Search MIME types by extension or MIME type.
  • input — string — a file extension (png) or MIME type (image/)
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• sort-lines read-only

  Sort, reverse, deduplicate and clean up lines of text. Operations: "process" — Sort, deduplicate and clean lines of text.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — process — Sort, deduplicate and clean lines of text.
  • input — string — the text, one item per line
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• jwt-encode read-only

  Sign a JSON payload into a JWT with an HMAC secret. Operations: "sign" — Sign a JSON payload into a JWT using an HMAC secret.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — sign — Sign a JSON payload into a JWT using an HMAC secret.
  • input — string — the JWT payload as JSON
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• ulid read-only

  Generate a lexicographically sortable ULID. Operations: "generate" — Generate a new ULID.. Call with "operation" plus "input" (and "options" where relevant). Not repeatable: generate returns a different result on each call.

  Parameters:

  • operation (required) — string — generate — Generate a new ULID.
  • input — string — Unused (pass an empty string).
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent no · open-world no

• string-escape read-only

  Escape and unescape strings for JSON, JS, HTML, URL and regex. Operations: "escape" — Escape a string for the chosen context.; "unescape" — Unescape a string from the chosen context.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — escape — Escape a string for the chosen context. unescape — Unescape a string from the chosen context.
  • input — string — escape: the text to escape unescape: the text to unescape
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• ascii read-only

  Convert text to and from character codes in several bases. Operations: "to-codes" — Convert text to character codes.; "from-codes" — Convert character codes back to text.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — to-codes — Convert text to character codes. from-codes — Convert character codes back to text.
  • input — string — to-codes: the text to convert from-codes: the character codes to convert
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• roman-numeral read-only

  Convert between integers and Roman numerals. Operations: "to-roman" — Convert an integer to a Roman numeral.; "from-roman" — Convert a Roman numeral to an integer.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — to-roman — Convert an integer to a Roman numeral. from-roman — Convert a Roman numeral to an integer.
  • input — string — to-roman: an integer 1-3999 from-roman: a Roman numeral
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• json-diff read-only

  Compare two JSON documents and report added, removed and changed values. Operations: "diff" — Diff two JSON documents by path.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — diff — Diff two JSON documents by path.
  • input — string — the first JSON document
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• morse-code read-only

  Translate text to and from Morse code. Operations: "encode" — Convert text to Morse code.; "decode" — Convert Morse code to text.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — encode — Convert text to Morse code. decode — Convert Morse code to text.
  • input — string — encode: text to convert to Morse decode: Morse code to convert to text
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• markdown-table read-only

  Convert CSV or TSV rows into a Markdown table. Operations: "generate" — Build a Markdown table from delimited rows.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — generate — Build a Markdown table from delimited rows.
  • input — string — CSV or TSV rows (first row is the header)
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• hmac read-only

  Sign a message with HMAC using a secret key and SHA-2 algorithm. Operations: "sign" — Compute an HMAC signature for a message.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — sign — Compute an HMAC signature for a message.
  • input — string — the message to sign
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• css-units read-only

  Convert a numeric value between CSS units (px, rem, em, pt, pc, %). Operations: "convert" — Convert a numeric value from one CSS unit to another.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — convert — Convert a numeric value from one CSS unit to another.
  • input — string — the numeric value to convert
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• json-xml read-only

  Convert between JSON and XML. Operations: "to-xml" — Convert JSON to XML.; "to-json" — Convert XML to JSON.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — to-xml — Convert JSON to XML. to-json — Convert XML to JSON.
  • input — string — to-xml: JSON to convert to XML to-json: XML to convert to JSON
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• char-inspector read-only

  Break a string into per-character Unicode details. Operations: "inspect" — Inspect each character of a string (code point, category, bytes).. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — inspect — Inspect each character of a string (code point, category, bytes).
  • input — string — the text to inspect
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• semver read-only

  Parse, compare, sort and bump Semantic Versions, and test versions against npm-style ranges. Operations: "parse" — Parse a SemVer 2.0.0 version into its components.; "compare" — Compare two versions by SemVer precedence (-1, 0 or 1).; "satisfies" — Test whether a version satisfies a range (^, ~, x, hyphen, ||).; "max-satisfying" — Find the highest and lowest versions in a list that satisfy a range.; "explain-range" — Desugar a range into plain comparators (e.g. ^1.2.3 → >=1.2.3 <2.0.0-0).; "sort" — Sort versions by SemVer precedence; invalid entries are listed separately.; "bump" — Increment a version like `npm version <release>`.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — parse — Parse a SemVer 2.0.0 version into its components. compare — Compare two versions by SemVer precedence (-1, 0 or 1). satisfies — Test whether a version satisfies a range (^, ~, x, hyphen, ||). max-satisfying — Find the highest and lowest versions in a list that satisfy a range. explain-range — Desugar a range into plain comparators (e.g. ^1.2.3 → >=1.2.3 <2.0.0-0). sort — Sort versions by SemVer precedence; invalid entries are listed separately. bump — Increment a version like `npm version <release>`.
  • input — string — parse: A version, e.g. "v1.4.0-beta.2+build.7". compare: The first version. satisfies: The version to test. max-satisfying: Versions separated by newlines, commas or spaces. explain-range: An npm-style range. sort: Versions separated by newlines, commas or spaces. bump: The current version.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• duration read-only

  Convert between ISO 8601 durations, seconds, clock time and human text like "1h30m" or "90 minutes". Operations: "convert" — Parse any duration (ISO 8601, 1h30m, 90 minutes, 1:30:00, seconds) into every representation.; "to-iso" — Convert any duration to a canonical ISO 8601 duration string.; "humanize" — Render a duration as words ("1 hour 30 minutes") or compact text ("1h 30m").. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — convert — Parse any duration (ISO 8601, 1h30m, 90 minutes, 1:30:00, seconds) into every representation. to-iso — Convert any duration to a canonical ISO 8601 duration string. humanize — Render a duration as words ("1 hour 30 minutes") or compact text ("1h 30m").
  • input — string — convert: A duration in any supported format. to-iso: A duration in any supported format. humanize: A duration in any supported format.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• nanoid read-only

  Generate NanoIDs or custom-alphabet random IDs with crypto randomness, plus a collision-probability estimate. Operations: "generate" — Generate one or more random IDs (default: 21-char URL-safe NanoID).; "collision" — Estimate how long until a 1% collision chance for an alphabet size, ID length and rate.. Call with "operation" plus "input" (and "options" where relevant). Not repeatable: generate returns a different result on each call.

  Parameters:

  • operation (required) — string — generate — Generate one or more random IDs (default: 21-char URL-safe NanoID). collision — Estimate how long until a 1% collision chance for an alphabet size, ID length and rate.
  • input — string — generate: A custom alphabet, or empty for the default URL-safe NanoID alphabet. collision: The alphabet (its unique character count is used), or empty for the default.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent no · open-world no

• base-n read-only

  Encode and decode UTF-8 text as Base32 (RFC 4648 + hex), Crockford Base32, Base58 (Bitcoin), Ascii85 or Z85. Operations: "encode" — Encode UTF-8 text in the chosen scheme.; "decode" — Decode to UTF-8 text (binary payloads are returned as hex).. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — encode — Encode UTF-8 text in the chosen scheme. decode — Decode to UTF-8 text (binary payloads are returned as hex).
  • input — string — encode: The text to encode. decode: The encoded string. Whitespace is ignored.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• luhn read-only

  Validate check digits: Luhn card numbers (with brand), IBAN mod-97, ISBN-10/13 and EAN/UPC barcodes. Format only — nothing is looked up or stored. Operations: "validate" — Validate a number, auto-detecting its type or using the one you choose.; "check-digit" — Compute the Luhn or GS1 (EAN/UPC) check digit to append to a payload.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — validate — Validate a number, auto-detecting its type or using the one you choose. check-digit — Compute the Luhn or GS1 (EAN/UPC) check digit to append to a payload.
  • input — string — validate: A card number, IBAN, ISBN or EAN/UPC (spaces and dashes are ignored). check-digit: The digits without their check digit.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• x509 read-only

  Decode PEM/DER X.509 certificates: subject, issuer, validity, SANs, key type/size, signature algorithm, extensions and fingerprints. Operations: "decode" — Decode every certificate in a PEM bundle (or one bare base64 DER).. Call with "operation" plus "input" (and "options" where relevant). Not repeatable: decode returns a different result on each call.

  Parameters:

  • operation (required) — string — decode — Decode every certificate in a PEM bundle (or one bare base64 DER).
  • input — string — PEM text (-----BEGIN CERTIFICATE-----) or base64 DER.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent no · open-world no

• env-json read-only

  Convert dotenv files to JSON and back, with dotenv-compatible quoting, escapes, comments, export prefixes and multi-line values, plus validation warnings. Operations: "to-json" — Parse a .env file into a JSON object (last duplicate wins).; "to-env" — Write a JSON object as .env lines, quoting values only where needed.; "validate" — Lint a .env file: duplicates, invalid names, unterminated quotes, stray # comments.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — to-json — Parse a .env file into a JSON object (last duplicate wins). to-env — Write a JSON object as .env lines, quoting values only where needed. validate — Lint a .env file: duplicates, invalid names, unterminated quotes, stray # comments.
  • input — string — to-json: The .env file contents. to-env: A JSON object; nested objects are flattened (DB__HOST). validate: The .env file contents.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• toml-json read-only

  Convert TOML 1.0 to JSON and JSON to TOML, reporting anything that cannot round-trip. Operations: "to-json" — Parse TOML and return pretty-printed JSON.; "to-toml" — Convert a JSON object to TOML (nulls are dropped with a warning).. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — to-json — Parse TOML and return pretty-printed JSON. to-toml — Convert a JSON object to TOML (nulls are dropped with a warning).
  • input — string — to-json: A TOML document. to-toml: A JSON object.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• csp read-only

  Parse a Content-Security-Policy, explain each directive and flag weaknesses (unsafe-inline, wildcards, missing object-src/base-uri/frame-ancestors…). Operations: "evaluate" — Parse a CSP header and return its directives and findings by severity.; "harden" — Add the low-risk directives a policy is missing (object-src 'none', base-uri, frame-ancestors, form-action) and return ready-to-paste header, meta, nginx and Apache forms.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — evaluate — Parse a CSP header and return its directives and findings by severity. harden — Add the low-risk directives a policy is missing (object-src 'none', base-uri, frame-ancestors, form-action) and return ready-to-paste header, meta, nginx and Apache forms.
  • input — string — evaluate: A CSP header value (optionally with the "Content-Security-Policy:" name). harden: A CSP header value.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• security-headers read-only

  Grade pasted HTTP response headers (HSTS, CSP, nosniff, framing, Referrer-Policy, Permissions-Policy, COOP/COEP/CORP, cookies) A+ to F. Parses text only; never fetches a URL. Operations: "grade" — Grade a raw header block and explain each check.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — grade — Grade a raw header block and explain each check.
  • input — string — Raw response headers, e.g. the output of `curl -sI https://example.com`.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• ipv6 read-only

  Expand and compress IPv6 addresses (RFC 5952), classify them (link-local, ULA, multicast, documentation…), extract embedded IPv4, do prefix and range maths, and build ip6.arpa names. Operations: "analyze" — Analyse an address, prefix or range: canonical and expanded forms, type, embedded IPv4, network bounds, reverse DNS.; "compress" — Rewrite each address in its RFC 5952 canonical (shortest) form.; "expand" — Rewrite each address with all eight 4-digit groups.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — analyze — Analyse an address, prefix or range: canonical and expanded forms, type, embedded IPv4, network bounds, reverse DNS. compress — Rewrite each address in its RFC 5952 canonical (shortest) form. expand — Rewrite each address with all eight 4-digit groups.
  • input — string — analyze: An IPv6 address (2001:db8::1, fe80::1%eth0, [::1]:443), prefix (2001:db8::/32) or range (2001:db8:: - 2001:db8::ff). compress: One or more IPv6 addresses, one per line. expand: One or more IPv6 addresses, one per line.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• utm read-only

  Build campaign URLs with utm_* parameters, parse and lint tagged links, and strip UTM and click-ID tracking parameters. Operations: "build" — Add UTM parameters to a URL, normalising case and spaces, and lint the result.; "parse" — Split a URL into UTM tags, ad click IDs and other parameters, with warnings.; "strip" — Remove utm_* and click-ID parameters (gclid, fbclid, msclkid…) from a URL.; "batch" — Tag many URLs (one per line) with the same UTM parameters.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — build — Add UTM parameters to a URL, normalising case and spaces, and lint the result. parse — Split a URL into UTM tags, ad click IDs and other parameters, with warnings. strip — Remove utm_* and click-ID parameters (gclid, fbclid, msclkid…) from a URL. batch — Tag many URLs (one per line) with the same UTM parameters.
  • input — string — build: The landing-page URL. parse: A tagged URL. strip: A URL with tracking parameters. batch: Landing-page URLs, one per line.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• aspect-ratio read-only

  Reduce a ratio or resolution to lowest terms, name the nearest common ratio, solve the missing dimension and write CSS aspect-ratio. Operations: "analyze" — Reduce a ratio or size (16:9, 1920x1080, 2.39) and return presets, CSS and whole-pixel sizes.; "solve" — Given a ratio and one dimension, compute the other.; "fit" — Largest size at this ratio that fits inside (contain) or covers (cover) a box.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — analyze — Reduce a ratio or size (16:9, 1920x1080, 2.39) and return presets, CSS and whole-pixel sizes. solve — Given a ratio and one dimension, compute the other. fit — Largest size at this ratio that fits inside (contain) or covers (cover) a box.
  • input — string — analyze: A ratio (16:9, 4/3, 1.85:1) or a size (1920x1080). solve: A ratio or size, e.g. "16:9". fit: A ratio or size, e.g. "9:16".
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• html-jsx read-only

  Convert HTML or SVG markup to React JSX: className/htmlFor, camelCased SVG attributes, style objects, self-closing tags, JSX comments. Operations: "convert" — Convert an HTML fragment or document to JSX, with warnings for anything to review.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — convert — Convert an HTML fragment or document to JSX, with warnings for anything to review.
  • input — string — HTML or SVG markup.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• jsonc read-only

  Convert JSON5, JSONC (tsconfig, VS Code settings) and relaxed JSON to strict JSON, or reformat them with comments kept, reporting every non-JSON feature used. Operations: "to-json" — Convert JSON5 / JSONC to strict RFC 8259 JSON.; "format" — Re-print JSON / JSON5 / JSONC tidily as JSONC or JSON5, keeping comments.; "validate" — Check whether text is valid JSON5 and list which non-JSON features it uses.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — to-json — Convert JSON5 / JSONC to strict RFC 8259 JSON. format — Re-print JSON / JSON5 / JSONC tidily as JSONC or JSON5, keeping comments. validate — Check whether text is valid JSON5 and list which non-JSON features it uses.
  • input — string — to-json: JSON5, JSONC or JSON text. format: JSON5, JSONC or JSON text. validate: JSON5, JSONC or JSON text.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• text-cleanup read-only

  Find and remove invisible Unicode (zero-width, bidi/Trojan Source, tag-character smuggling), fix line endings, trailing whitespace, tabs and smart quotes, and normalise Unicode. Operations: "scan" — Report invisible and special characters, hidden tag-character text, unterminated bidi controls, line endings and normalisation.; "clean" — Apply clean-ups and return the text plus counts of every change.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — scan — Report invisible and special characters, hidden tag-character text, unterminated bidi controls, line endings and normalisation. clean — Apply clean-ups and return the text plus counts of every change.
  • input — string — scan: The text to inspect. clean: The text to clean.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• date-calc read-only

  Days, months and business days between dates, add or subtract durations, ISO week numbers and day of year, and DST-aware elapsed time between local times. Operations: "diff" — Difference between two dates in years/months/days, total days, weeks and business days.; "add" — Add or subtract a duration ("1y 2m", "-90d", "P2W") or a number of business days.; "info" — Weekday, day of year, ISO week, quarter and leap year for a date (plus Unix time of local midnight).; "elapsed" — Exact elapsed time between two local date-times, following DST in each time zone.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — diff — Difference between two dates in years/months/days, total days, weeks and business days. add — Add or subtract a duration ("1y 2m", "-90d", "P2W") or a number of business days. info — Weekday, day of year, ISO week, quarter and leap year for a date (plus Unix time of local midnight). elapsed — Exact elapsed time between two local date-times, following DST in each time zone.
  • input — string — diff: Start date (YYYY-MM-DD). add: The date (YYYY-MM-DD). info: The date (YYYY-MM-DD). elapsed: Start as "YYYY-MM-DD HH:MM".
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• svg-data-uri read-only

  Minify an SVG and encode it as a compact percent-encoded (or base64) data URI, with background-image and mask-image CSS. Operations: "encode" — Optimise an SVG and return url-encoded and base64 data URIs, sizes and CSS snippets.; "decode" — Decode a data:image/svg+xml URI (percent-encoded or base64) back to SVG markup.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — encode — Optimise an SVG and return url-encoded and base64 data URIs, sizes and CSS snippets. decode — Decode a data:image/svg+xml URI (percent-encoded or base64) back to SVG markup.
  • input — string — encode: SVG markup. decode: A data URI, optionally wrapped in url("…").
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• id-decoder read-only

  Decode IDs: Snowflake, MongoDB ObjectId, KSUID, TypeID, ULID, UUID and CUID2 — timestamp, machine fields and randomness. Operations: "decode" — Detect each ID's format and take it apart (one ID per line, up to 200).. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — decode — Detect each ID's format and take it apart (one ID per line, up to 200).
  • input — string — One or more IDs, one per line.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• docker-compose read-only

  Convert docker run commands to a Docker Compose file and Compose services back. Operations: "to-compose" — Convert one or more docker run commands to Compose services (ports, volumes, env, name, restart, network, command).; "to-run" — Convert a Compose file (or one service) to a docker run command per service.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — to-compose — Convert one or more docker run commands to Compose services (ports, volumes, env, name, restart, network, command). to-run — Convert a Compose file (or one service) to a docker run command per service.
  • input — string — to-compose: docker run commands; separate several with a blank line, ; or &&. to-run: A Compose file in YAML, or a single service mapping.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• glob-tester read-only

  Test .gitignore or glob patterns against a list of paths and see which rule matched each one. Operations: "test" — Match paths against gitignore rules (negation, anchoring, **, directory-only) or plain globs.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — test — Match paths against gitignore rules (negation, anchoring, **, directory-only) or plain globs.
  • input — string — Paths to test, one per line; end a directory with / (e.g. build/ or src/app.js).
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• punycode read-only

  Convert internationalised domain names to and from Punycode (RFC 3492): bücher.example ⇄ xn--bcher-kva.example. Operations: "to-ascii" — Encode each Unicode label as an xn-- label (one domain, email or URL per line; labels are NFC-normalised and lowercased).; "to-unicode" — Decode each xn-- label back to Unicode (one domain, email or URL per line).; "encode" — Encode one string with the bare RFC 3492 algorithm (no xn-- prefix, case kept).; "decode" — Decode one bare Punycode string (no xn-- prefix) with the RFC 3492 algorithm.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — to-ascii — Encode each Unicode label as an xn-- label (one domain, email or URL per line; labels are NFC-normalised and lowercased). to-unicode — Decode each xn-- label back to Unicode (one domain, email or URL per line). encode — Encode one string with the bare RFC 3492 algorithm (no xn-- prefix, case kept). decode — Decode one bare Punycode string (no xn-- prefix) with the RFC 3492 algorithm.
  • input — string — to-ascii: Domain names, email addresses or URLs, one per line. to-unicode: Domain names, email addresses or URLs with xn-- labels, one per line. encode: The Unicode string to encode. decode: The Punycode string to decode.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• ieee754 read-only

  Inspect IEEE 754 float32/float64: sign, exponent and mantissa bits, hex, the exact stored value and the rounding error. Operations: "inspect" — Read a decimal (0.1, -2.5e-8, Infinity, NaN) or a bit pattern (0x3DCCCCCD, 32 or 64 binary digits) and show how float32 and float64 store it.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — inspect — Read a decimal (0.1, -2.5e-8, Infinity, NaN) or a bit pattern (0x3DCCCCCD, 32 or 64 binary digits) and show how float32 and float64 store it.
  • input — string — A decimal number, Infinity/NaN, 0x + 8 or 16 hex digits, or 32/64 bits.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• html-markdown read-only

  Convert HTML to Markdown (CommonMark + GitHub tables), dropping scripts and styles. Operations: "convert" — Convert an HTML page or fragment to Markdown: headings, lists, links, images, code blocks, tables and blockquotes.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — convert — Convert an HTML page or fragment to Markdown: headings, lists, links, images, code blocks, tables and blockquotes.
  • input — string — The HTML to convert (a whole page or a fragment).
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• robots-txt read-only

  Build robots.txt that treats search engines, AI answer bots and AI training crawlers separately; validate llms.txt. Operations: "build" — Build robots.txt: allow or block search engines, AI answer engines/assistants and AI training crawlers (named), with Content-Signal and Sitemap lines.; "validate-llms" — Check an llms.txt file against llmstxt.org: one H1, a > summary, H2 sections of Markdown link lists.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — build — Build robots.txt: allow or block search engines, AI answer engines/assistants and AI training crawlers (named), with Content-Signal and Sitemap lines. validate-llms — Check an llms.txt file against llmstxt.org: one H1, a > summary, H2 sections of Markdown link lists.
  • input — string — build: One item per line: sitemap URLs (https://…) and paths every crawler should skip (/admin/). May be empty. validate-llms: The llms.txt file to check.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• compress read-only

  gzip, deflate (zlib) or raw-deflate text to Base64 or hex, and decompress it back. Operations: "compress" — Compress UTF-8 text with gzip, deflate (zlib) or raw deflate.; "decompress" — Decompress Base64 or hex gzip/deflate data back to text (output up to 256 KB).. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — compress — Compress UTF-8 text with gzip, deflate (zlib) or raw deflate. decompress — Decompress Base64 or hex gzip/deflate data back to text (output up to 256 KB).
  • input — string — compress: The text to compress. decompress: The compressed bytes, as Base64 or hex.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• saml-decoder read-only

  Decode a SAMLRequest or SAMLResponse (Base64, or deflate + Base64) and summarise it. Signatures are not verified. Operations: "decode" — Decode a SAML message and return its issuer, status, NameID, audience, conditions, validity window, attributes and pretty-printed XML. Signatures are reported, never verified.. Call with "operation" plus "input" (and "options" where relevant). Not repeatable: decode returns a different result on each call.

  Parameters:

  • operation (required) — string — decode — Decode a SAML message and return its issuer, status, NameID, audience, conditions, validity window, attributes and pretty-printed XML. Signatures are reported, never verified.
  • input — string — The SAMLRequest/SAMLResponse value (Base64 for HTTP-POST, deflate + Base64 for HTTP-Redirect), a URL or form body containing it, or the XML.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent no · open-world no

• key-inspector read-only

  Inspect a CSR (subject, SANs, key, signature check), OpenSSH public keys (type, bits, ssh-keygen fingerprints) or a JWK / JWKS (RFC 7638 thumbprint, PEM and OpenSSH forms). Private keys are refused. Operations: "inspect" — Inspect a PEM CSR or public key, OpenSSH public key lines (authorized_keys, known_hosts) or a JWK / JWK Set.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — inspect — Inspect a PEM CSR or public key, OpenSSH public key lines (authorized_keys, known_hosts) or a JWK / JWK Set.
  • input — string — A -----BEGIN CERTIFICATE REQUEST----- or PUBLIC KEY block, one or more "ssh-ed25519 AAAA…" lines, or JWK JSON.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• json-schema-validator read-only

  Validate JSON data against a JSON Schema (drafts 2020-12, 2019-09, 7 and 4) and list each error with its data path and schema keyword. Operations: "validate" — Validate JSON data against a JSON Schema.. Call with "operation" plus "input" (and "options" where relevant).

  Parameters:

  • operation (required) — string — validate — Validate JSON data against a JSON Schema.
  • input — string — The JSON data (instance) to validate.
  • options — object — Options for the chosen operation (each says which operations use it).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

Repository

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