SmartTools

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

70+ free calculators & converters as MCP tools; each result links to its source page.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "SmartTools": {
      "url": "https://smart-tools.xyz/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (74)

• length_converter

  Convert a value between length units. Units: km (Kilometer), m (Meter), cm (Centimeter), mm (Millimeter), µm (Micrometer), mi (Mile), yd (Yard), ft (Foot), in (Inch), nmi (Nautical mile). Calculation runs on smart-tools.xyz.

  Parameters:

  • value (required) — ['number', 'string'] — Amount to convert
  • from (required) — string — Source unit id
  • to (required) — string — Target unit id
  • locale — string — Language for source_url (en, de, es, fr, it, nl, uk)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• weight_converter

  Convert a value between weight units. Units: t (Tonne), kg (Kilogram), g (Gram), mg (Milligram), lb (Pound), oz (Ounce), st (Stone). Calculation runs on smart-tools.xyz.

  Parameters:

  • value (required) — ['number', 'string'] — Amount to convert
  • from (required) — string — Source unit id
  • to (required) — string — Target unit id
  • locale — string — Language for source_url (en, de, es, fr, it, nl, uk)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• temperature_converter

  Convert a value between temperature units. Units: °C (Celsius), °F (Fahrenheit), K (Kelvin), °R (Rankine). Calculation runs on smart-tools.xyz.

  Parameters:

  • value (required) — ['number', 'string'] — Amount to convert
  • from (required) — string — Source unit id
  • to (required) — string — Target unit id
  • locale — string — Language for source_url (en, de, es, fr, it, nl, uk)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• area_converter

  Convert a value between area units. Units: km² (Square kilometer), m² (Square meter), cm² (Square centimeter), mm² (Square millimeter), ha (Hectare), ac (Acre), mi² (Square mile), ft² (Square foot), yd² (Square yard), in² (Square inch). Calculation runs on smart-tools.xyz.

  Parameters:

  • value (required) — ['number', 'string'] — Amount to convert
  • from (required) — string — Source unit id
  • to (required) — string — Target unit id
  • locale — string — Language for source_url (en, de, es, fr, it, nl, uk)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• volume_converter

  Convert a value between volume units. Units: m³ (Cubic meter), L (Liter), mL (Milliliter), gal_us (US gallon), gal_uk (UK gallon), qt (US quart), pt_us (US pint), pt_uk (UK pint), cup (US cup), fl oz (US fluid ounce). Calculation runs on smart-tools.xyz.

  Parameters:

  • value (required) — ['number', 'string'] — Amount to convert
  • from (required) — string — Source unit id
  • to (required) — string — Target unit id
  • locale — string — Language for source_url (en, de, es, fr, it, nl, uk)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• speed_converter

  Convert a value between speed units. Units: m/s (Meter per second), km/h (Kilometer per hour), mph (Mile per hour), ft/s (Foot per second), kn (Knot). Calculation runs on smart-tools.xyz.

  Parameters:

  • value (required) — ['number', 'string'] — Amount to convert
  • from (required) — string — Source unit id
  • to (required) — string — Target unit id
  • locale — string — Language for source_url (en, de, es, fr, it, nl, uk)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• pressure_converter

  Convert a value between pressure units. Units: Pa (Pascal), kPa (Kilopascal), hPa (Hectopascal), bar (Bar), atm (Atmosphere), psi (Pound per sq inch), mmHg (Millimeter of mercury), inHg (Inch of mercury). Calculation runs on smart-tools.xyz.

  Parameters:

  • value (required) — ['number', 'string'] — Amount to convert
  • from (required) — string — Source unit id
  • to (required) — string — Target unit id
  • locale — string — Language for source_url (en, de, es, fr, it, nl, uk)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• angle_converter

  Convert a value between angle units. Units: ° (Degree), rad (Radian), grad (Gradian), mrad (Milliradian), rev (Turn), ′ (Arcminute), ″ (Arcsecond). Calculation runs on smart-tools.xyz.

  Parameters:

  • value (required) — ['number', 'string'] — Amount to convert
  • from (required) — string — Source unit id
  • to (required) — string — Target unit id
  • locale — string — Language for source_url (en, de, es, fr, it, nl, uk)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• energy_converter

  Convert a value between energy units. Units: J (Joule), kJ (Kilojoule), cal (Calorie), kcal (Kilocalorie), Wh (Watt-hour), kWh (Kilowatt-hour), BTU (British thermal unit), ft·lb (Foot-pound), eV (Electronvolt). Calculation runs on smart-tools.xyz.

  Parameters:

  • value (required) — ['number', 'string'] — Amount to convert
  • from (required) — string — Source unit id
  • to (required) — string — Target unit id
  • locale — string — Language for source_url (en, de, es, fr, it, nl, uk)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• data_converter

  Convert a value between data units. Units: bit (Bit), B (Byte), kB (Kilobyte), MB (Megabyte), GB (Gigabyte), TB (Terabyte), KiB (Kibibyte), MiB (Mebibyte), GiB (Gibibyte), TiB (Tebibyte). Calculation runs on smart-tools.xyz.

  Parameters:

  • value (required) — ['number', 'string'] — Amount to convert
  • from (required) — string — Source unit id
  • to (required) — string — Target unit id
  • locale — string — Language for source_url (en, de, es, fr, it, nl, uk)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• time_converter

  Convert a value between time units. Units: µs (Microsecond), ms (Millisecond), s (Second), min (Minute), h (Hour), d (Day), wk (Week), mo (Month), yr (Year). Calculation runs on smart-tools.xyz.

  Parameters:

  • value (required) — ['number', 'string'] — Amount to convert
  • from (required) — string — Source unit id
  • to (required) — string — Target unit id
  • locale — string — Language for source_url (en, de, es, fr, it, nl, uk)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• loan_calculator

  Monthly payment, total repayment and interest for an amortising loan (annuity formula). Runs on smart-tools.xyz.

  Parameters:

  • principal (required) — ['number', 'string'] — Loan amount
  • annual_rate (required) — ['number', 'string'] — Annual interest rate, percent
  • years (required) — ['number', 'string'] — Term in years
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• mortgage_calculator

  Monthly mortgage payment including optional down payment, property tax and insurance (PITI). Runs on smart-tools.xyz.

  Parameters:

  • home_price (required) — ['number', 'string'] — Property price
  • annual_rate (required) — ['number', 'string'] — Annual interest rate, percent
  • years (required) — ['number', 'string'] — Term in years
  • locale — string — Language for the source_url link (default en)
  • annual_tax — ['number', 'string'] — Annual property tax (default 0)
  • annual_insurance — ['number', 'string'] — Annual insurance (default 0)
  • down_payment_pct — ['number', 'string'] — Down payment, percent (default 0)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• compound_interest_calculator

  Future balance and interest earned: A = P(1 + r/n)^(nt). Runs on smart-tools.xyz.

  Parameters:

  • principal (required) — ['number', 'string'] — Starting amount
  • annual_rate (required) — ['number', 'string'] — Annual rate, percent
  • years (required) — ['number', 'string'] — Number of years
  • locale — string — Language for the source_url link (default en)
  • compounds_per_year — ['number', 'string'] — Compounding periods per year (default 12)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• vat_calculator

  Add VAT to a net amount or remove it from a gross amount. Runs on smart-tools.xyz.

  Parameters:

  • amount (required) — ['number', 'string'] — The amount
  • rate (required) — ['number', 'string'] — VAT rate, percent
  • locale — string — Language for the source_url link (default en)
  • direction — string — add: amount is net → gross; remove: amount is gross → net (default add)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• tip_calculator

  Tip amount, total and per-person split for a bill. Runs on smart-tools.xyz.

  Parameters:

  • bill (required) — ['number', 'string'] — Bill amount
  • tip_rate (required) — ['number', 'string'] — Tip, percent
  • locale — string — Language for the source_url link (default en)
  • people — ['number', 'string'] — Number of people to split between (default 1)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• discount_calculator

  Final price after one or two successive discounts, plus amount saved. Runs on smart-tools.xyz.

  Parameters:

  • price (required) — ['number', 'string'] — Original price
  • discount (required) — ['number', 'string'] — Discount, percent
  • locale — string — Language for the source_url link (default en)
  • second_discount — ['number', 'string'] — Optional second discount applied to the already-reduced price, percent

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• percentage_calculator

  Percentage operations. operation=percent_of: a% of b. operation=is_what_percent: a is what % of b. operation=change: percent change from a to b. Runs on smart-tools.xyz.

  Parameters:

  • operation (required) — string — Which calculation
  • a (required) — ['number', 'string'] — First number
  • b (required) — ['number', 'string'] — Second number
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• salary_calculator

  Convert pay between hourly, daily, weekly, biweekly, monthly and annual. Runs on smart-tools.xyz.

  Parameters:

  • amount (required) — ['number', 'string'] — Pay amount
  • period (required) — string — Period the amount refers to
  • locale — string — Language for the source_url link (default en)
  • hours_per_week — ['number', 'string'] — Working hours per week (default 40)
  • weeks_per_year — ['number', 'string'] — Paid weeks per year (default 52)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• margin_calculator

  Profit, margin (share of price) and markup (share of cost) from cost and selling price. Runs on smart-tools.xyz.

  Parameters:

  • cost (required) — ['number', 'string'] — Cost price
  • price (required) — ['number', 'string'] — Selling price
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• unit_price_calculator

  Compare price per unit of two packs and report which is cheaper. Runs on smart-tools.xyz.

  Parameters:

  • price_a (required) — ['number', 'string'] — Price of pack A
  • quantity_a (required) — ['number', 'string'] — Quantity in pack A
  • price_b (required) — ['number', 'string'] — Price of pack B
  • quantity_b (required) — ['number', 'string'] — Quantity in pack B
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• fuel_cost_calculator

  Fuel needed and trip cost. system=metric: distance km, consumption L/100km. system=imperial: distance miles, consumption mpg. Runs on smart-tools.xyz.

  Parameters:

  • distance (required) — ['number', 'string'] — Trip distance
  • consumption (required) — ['number', 'string'] — L/100km (metric) or mpg (imperial)
  • fuel_price (required) — ['number', 'string'] — Price per litre or per gallon
  • locale — string — Language for the source_url link (default en)
  • system — string — Unit system (default metric)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• electricity_cost_calculator

  Running cost of an appliance per day, month and year from its wattage. Runs on smart-tools.xyz.

  Parameters:

  • power_watts (required) — ['number', 'string'] — Power draw in watts
  • hours_per_day (required) — ['number', 'string'] — Hours used per day
  • price_per_kwh (required) — ['number', 'string'] — Electricity price per kWh
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• bmi_calculator

  Body Mass Index and category. system=metric: weight_kg, height_cm. system=imperial: weight_lb, height_ft (+height_in). Runs on smart-tools.xyz.

  Parameters:

  • locale — string — Language for the source_url link (default en)
  • system — string — Unit system (default metric)
  • height_cm — ['number', 'string'] — Height in cm (metric)
  • height_ft — ['number', 'string'] — Height feet part (imperial)
  • height_in — ['number', 'string'] — Height inches part (imperial, default 0)
  • weight_kg — ['number', 'string'] — Weight in kg (metric)
  • weight_lb — ['number', 'string'] — Weight in lb (imperial)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• bmr_calculator

  Basal metabolic rate (Mifflin–St Jeor) and daily calories (TDEE = BMR × activity). Runs on smart-tools.xyz.

  Parameters:

  • sex (required) — string — Biological sex
  • age (required) — ['number', 'string'] — Age in years
  • height_cm (required) — ['number', 'string'] — Height in cm
  • weight_kg (required) — ['number', 'string'] — Weight in kg
  • locale — string — Language for the source_url link (default en)
  • activity — ['number', 'string'] — Activity multiplier: 1.2 sedentary, 1.375 light, 1.55 moderate, 1.725 active, 1.9 very active (default 1.2)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• body_fat_calculator

  Body fat percentage by the US Navy (Hodgdon–Beckett) method, metric measurements in cm. Females require hip_cm. Runs on smart-tools.xyz.

  Parameters:

  • sex (required) — string — Biological sex
  • height_cm (required) — ['number', 'string'] — Height in cm
  • neck_cm (required) — ['number', 'string'] — Neck circumference in cm
  • waist_cm (required) — ['number', 'string'] — Waist circumference in cm
  • hip_cm — ['number', 'string'] — Hip circumference in cm (required for female)
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• ideal_weight_calculator

  Healthy weight range (BMI 18.5–24.9) plus Devine, Robinson, Miller and Hamwi formula estimates, from height in cm. Runs on smart-tools.xyz.

  Parameters:

  • sex (required) — string — Biological sex
  • height_cm (required) — ['number', 'string'] — Height in cm
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• due_date_calculator

  Estimated due date by Naegele's rule (+280 days from last period, adjusted for cycle length). Runs on smart-tools.xyz.

  Parameters:

  • last_period (required) — string — First day of last menstrual period, YYYY-MM-DD
  • locale — string — Language for the source_url link (default en)
  • cycle_length — ['number', 'string'] — Average cycle length in days (default 28)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• age_calculator

  Exact age in years, months and days between a birth date and a reference date (default: today). Runs on smart-tools.xyz.

  Parameters:

  • birth_date (required) — string — Date of birth, YYYY-MM-DD
  • locale — string — Language for the source_url link (default en)
  • at_date — string — Reference date, YYYY-MM-DD (default: today)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• date_difference_calculator

  Difference between two dates: calendar years/months/days, total days, weeks and weekday count. Runs on smart-tools.xyz.

  Parameters:

  • start_date (required) — string — Start date, YYYY-MM-DD
  • end_date (required) — string — End date, YYYY-MM-DD
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• hours_calculator

  Time worked between two clock times (handles overnight), minus a break, with optional pay. Times as HH:MM. Runs on smart-tools.xyz.

  Parameters:

  • start (required) — string — Start time HH:MM (24h)
  • end (required) — string — End time HH:MM (24h)
  • locale — string — Language for the source_url link (default en)
  • hourly_rate — ['number', 'string'] — Optional pay rate per hour
  • break_minutes — ['number', 'string'] — Unpaid break in minutes (default 0)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• aspect_ratio_calculator

  Simplify a width×height ratio and scale to a new width or height. Runs on smart-tools.xyz.

  Parameters:

  • width (required) — ['number', 'string'] — Original width
  • height (required) — ['number', 'string'] — Original height
  • locale — string — Language for the source_url link (default en)
  • new_width — ['number', 'string'] — Optional: target width → returns matching height
  • new_height — ['number', 'string'] — Optional: target height → returns matching width

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• standard_deviation_calculator

  Mean, variance and standard deviation (both sample and population) of a list of numbers. Runs on smart-tools.xyz.

  Parameters:

  • values (required) — array — The data set (at least 2 numbers)
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• fraction_calculator

  Exact arithmetic on two fractions (a/b op c/d), reduced to lowest terms. op is one of + - * /. Runs on smart-tools.xyz.

  Parameters:

  • a (required) — ['number', 'string'] — Numerator of first fraction (integer)
  • b (required) — ['number', 'string'] — Denominator of first fraction (integer)
  • operator (required) — string — Operation
  • c (required) — ['number', 'string'] — Numerator of second fraction (integer)
  • d (required) — ['number', 'string'] — Denominator of second fraction (integer)
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• triangle_calculator

  Solve a triangle. mode=sss: three sides a,b,c. mode=sas: two sides a,b and the included angle angle_c (degrees). Returns sides, angles (degrees), area and perimeter. Runs on smart-tools.xyz.

  Parameters:

  • mode (required) — string — sss = three sides; sas = two sides + included angle
  • a (required) — ['number', 'string'] — Side a
  • b (required) — ['number', 'string'] — Side b
  • c — ['number', 'string'] — Side c (mode sss)
  • locale — string — Language for the source_url link (default en)
  • angle_c — ['number', 'string'] — Included angle C in degrees (mode sas)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• pace_calculator

  Running pace per km and per mile, plus speed, from distance and time. Runs on smart-tools.xyz.

  Parameters:

  • distance (required) — ['number', 'string'] — Distance covered
  • unit — string — Distance unit (default km)
  • hours — ['number', 'string'] — Hours part of the time (default 0)
  • locale — string — Language for the source_url link (default en)
  • minutes — ['number', 'string'] — Minutes part of the time (default 0)
  • seconds — ['number', 'string'] — Seconds part of the time (default 0)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• subnet_calculator

  IPv4 subnet details: network, broadcast, mask, wildcard, host range and count for an IP and prefix. Runs on smart-tools.xyz.

  Parameters:

  • ip (required) — string — IPv4 address, optionally with /prefix (e.g. 10.0.0.1 or 10.0.0.1/8)
  • locale — string — Language for the source_url link (default en)
  • prefix — ['number', 'string'] — CIDR prefix 0–32 (ignored if given in ip)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• color_converter

  Convert a color between HEX, RGB and HSL. Accepts #hex, rgb()/rgba(), hsl()/hsla(). Runs on smart-tools.xyz.

  Parameters:

  • color (required) — string — Color in any of: #1a7f5a, rgb(26,127,90), hsl(154,66%,30%)
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• gpa_calculator

  Weighted grade point average from letter grades (US 4.0 scale, +/-) or numeric grade points and credit hours. Runs on smart-tools.xyz.

  Parameters:

  • courses (required) — array — Each course as { grade, credits }. grade is a letter (A, A-, B+ …) or numeric grade points (0–4.5); credits defaults to 1.
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• scientific_calculator

  Evaluate a math expression with correct order of operations: + - * / % ^, parentheses, and functions (sqrt, sin, cos, tan, ln, log, exp, min, max, factorial via !). Constants pi, e. Angles in radians. Runs on smart-tools.xyz.

  Parameters:

  • expression (required) — string — Math expression, e.g. "2+3*sqrt(16)" or "sin(pi/6)". Operators + - * / % ^ (% is remainder, ^ is power), functions sqrt/cbrt/abs/ln/log/log2/exp/sin/cos/tan/asin/acos/atan/sinh/cosh/tanh/round/floor/ceil/sign/deg/rad/min/max/mod/pow/hypot, factorial via trailing !, constants pi/e/tau. Angles in radians.
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• height_converter

  Convert a height between centimetres and feet/inches. Give cm, or feet (with optional inches). One inch = 2.54 cm exactly. Runs on smart-tools.xyz.

  Parameters:

  • cm — ['number', 'string'] — Height in centimetres (give this OR feet/inches)
  • feet — ['number', 'string'] — Feet part (give this side instead of cm)
  • inches — ['number', 'string'] — Inches part, used with feet (default 0)
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• base64

  Encode text to Base64 or decode Base64 back to text, UTF-8 safe, with an optional URL-safe alphabet. Runs on smart-tools.xyz.

  Parameters:

  • text (required) — string — Text to encode, or Base64 to decode
  • locale — string — Language for the source_url link (default en)
  • url_safe — boolean — Use URL-safe alphabet (-_ instead of +/, no padding). Default false
  • direction — string — encode (default) or decode

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• case_converter

  Convert text to UPPER, lower, Title, Sentence, camelCase, PascalCase, snake_case, kebab-case or CONSTANT_CASE. Runs on smart-tools.xyz.

  Parameters:

  • text (required) — string — Text to convert
  • case (required) — string — Target case
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• html_entities

  Escape the five special HTML characters (optionally all non-ASCII) or decode named and numeric HTML entities back to text. Runs on smart-tools.xyz.

  Parameters:

  • text (required) — string — Text to encode, or HTML with entities to decode
  • locale — string — Language for the source_url link (default en)
  • direction — string — encode (default) or decode
  • encode_all — boolean — When encoding, also convert every non-ASCII character to a numeric entity. Default false

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• url_encoder

  Percent-encode or decode a URL. mode=component escapes /?&= (for a value); mode=full keeps them (for a whole address). Runs on smart-tools.xyz.

  Parameters:

  • text (required) — string — Text or URL to encode/decode
  • mode — string — component (default) uses encodeURIComponent; full uses encodeURI
  • locale — string — Language for the source_url link (default en)
  • direction — string — encode (default) or decode

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• slug_generator

  Turn text (incl. Ukrainian and accented Latin) into a clean URL slug; each non-empty line becomes its own slug. Runs on smart-tools.xyz.

  Parameters:

  • text (required) — string — Text to slugify (one slug per line)
  • locale — string — Language for the source_url link (default en)
  • separator — string — Word separator, - (default) or _

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• remove_duplicates

  Remove duplicate lines, with optional trim, case-insensitive matching, sorting or keeping only the duplicated lines. Runs on smart-tools.xyz.

  Parameters:

  • text (required) — string — Input lines
  • sort — boolean — Sort the result (default false)
  • trim — boolean — Trim whitespace on each line (default true)
  • locale — string — Language for the source_url link (default en)
  • ignore_case — boolean — Match case-insensitively (default false)
  • only_duplicates — boolean — Keep only lines that appeared more than once (default false)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• text_counter

  Count characters (with and without spaces), words, lines, paragraphs and estimated reading time. Runs on smart-tools.xyz.

  Parameters:

  • text (required) — string — Text to measure
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• text_diff

  Line-level diff of two texts (LCS): counts of added/removed lines plus a marked-up line list. Runs on smart-tools.xyz.

  Parameters:

  • a (required) — string — First (original) text
  • b (required) — string — Second (changed) text
  • trim — boolean — Trim each line before comparing (default true)
  • locale — string — Language for the source_url link (default en)
  • ignore_case — boolean — Compare case-insensitively (default false)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• lorem_ipsum

  Generate placeholder lorem ipsum text by paragraphs, sentences or words. Runs on smart-tools.xyz.

  Parameters:

  • unit — string — paragraphs (default), sentences or words
  • count — ['number', 'string'] — How many units to generate (default 3)
  • locale — string — Language for the source_url link (default en)
  • start_lorem — boolean — Begin with the classic 'Lorem ipsum dolor sit amet…' (default true)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• number_base

  Convert an integer between bases 2–36 (binary, octal, decimal, hex and more), exact for 64-bit values via BigInt. Runs on smart-tools.xyz.

  Parameters:

  • value (required) — ['string', 'number'] — The integer to convert (may use 0x/0b/0o prefix, spaces or _ as separators)
  • from_base (required) — ['number', 'string'] — Base of the input, 2–36
  • locale — string — Language for the source_url link (default en)
  • to_base — ['number', 'string'] — Base to convert to, 2–36

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• timestamp_converter

  Convert between a Unix timestamp and an ISO 8601 date (UTC). direction=to_date: epoch → date; to_timestamp: date → epoch. Runs on smart-tools.xyz.

  Parameters:

  • value (required) — ['string', 'number'] — Epoch (seconds or ms) for to_date, or an ISO/date string for to_timestamp
  • locale — string — Language for the source_url link (default en)
  • direction — string — to_date: epoch → ISO; to_timestamp: date string → epoch. Auto-detected if omitted.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• transliteration

  Transliterate Ukrainian Cyrillic to Latin by the official KMU #55 passport standard. Runs on smart-tools.xyz.

  Parameters:

  • text (required) — string — Ukrainian text to transliterate
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• uuid_generator

  Generate one or more random version 4 (RFC 4122) UUIDs. Runs on smart-tools.xyz.

  Parameters:

  • count — ['number', 'string'] — How many UUIDs to generate, 1–1000 (default 1)
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• hash_generator

  Hash text with SHA-1, SHA-256, SHA-384 or SHA-512 (hex, over UTF-8 bytes). MD5 is not supported. Runs on smart-tools.xyz.

  Parameters:

  • text (required) — string — The text to hash
  • locale — string — Language for the source_url link (default en)
  • algorithm — string — Hash algorithm (default SHA-256)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• jwt_decoder

  Decode a JSON Web Token's header and payload (base64url). Does NOT verify the signature — that needs the secret/key. Runs on smart-tools.xyz.

  Parameters:

  • token (required) — string — The JWT (header.payload.signature)
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• cron_parser

  Parse a 5-field cron expression (minute hour day-of-month month day-of-week) into a plain-English description. Runs on smart-tools.xyz.

  Parameters:

  • expression (required) — string — Cron expression, e.g. "*/15 9-17 * * 1-5" (aliases like @daily accepted)
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• regex_tester

  Test a JavaScript regular expression against text and return every match with its captured groups. Runs on smart-tools.xyz.

  Parameters:

  • pattern (required) — string — The regular expression source (no delimiters)
  • text (required) — string — The text to test against
  • flags — string — Regex flags, any of gimsuy (default g)
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• layout_fixer

  Fix text typed in the wrong keyboard layout between English QWERTY and Ukrainian ЙЦУКЕН. Runs on smart-tools.xyz.

  Parameters:

  • text (required) — string — The garbled text
  • locale — string — Language for the source_url link (default en)
  • direction — string — en_to_uk: text typed on EN layout meant for UK; uk_to_en: the reverse (default en_to_uk)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• wcag_contrast_checker

  Compute the WCAG 2.x contrast ratio between two hex colors and whether it passes AA/AAA for normal and large text. Runs on smart-tools.xyz.

  Parameters:

  • foreground (required) — string — Text colour as hex, e.g. #767676
  • background (required) — string — Background colour as hex, e.g. #ffffff
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• csv_to_json

  Parse CSV/TSV text (auto-detecting tab, semicolon or comma delimiter) with a header row into an array of JSON objects. Runs on smart-tools.xyz.

  Parameters:

  • text (required) — string — CSV/TSV text to convert
  • locale — string — Language for the source_url link (default en)
  • has_header — ['boolean', 'string'] — Treat the first row as column names (default true); if false, columns are named col1, col2, …

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• csv_to_sql

  Turn CSV/TSV rows into SQL INSERT statements with standard double-quoted identifiers and escaped values. Runs on smart-tools.xyz.

  Parameters:

  • text (required) — string — CSV/TSV text to convert
  • nulls — ['boolean', 'string'] — Emit NULL for empty cells (default true)
  • locale — string — Language for the source_url link (default en)
  • quote_all — ['boolean', 'string'] — Quote every value, even numeric ones (default false)
  • batch_size — ['number', 'string'] — Rows per INSERT statement (default 50)
  • has_header — ['boolean', 'string'] — Use the first row as column names (default true); if false, columns are named col1, col2, …
  • table_name — string — Target table name (default my_table)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• table_to_csv

  Convert a pasted HTML <table> or delimited (tab/semicolon/comma) table into clean CSV. Runs on smart-tools.xyz.

  Parameters:

  • text (required) — string — An HTML <table> or delimited table text
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• markdown_table

  Build a padded GitHub-flavored Markdown table from CSV/TSV text (first row is the header). Runs on smart-tools.xyz.

  Parameters:

  • text (required) — string — CSV/TSV rows; the first row is the header
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• json_formatter

  Validate and pretty-print or minify JSON, reporting the line and column on a parse error. Runs on smart-tools.xyz.

  Parameters:

  • text (required) — string — JSON text to format
  • action — string — pretty = indented (default); minify = single line
  • indent — ['number', 'string'] — Spaces per level for pretty (default 2), or "tab" for tabs
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• gitignore_generator

  Build a .gitignore from curated templates for Node, Python, Go, Rust, macOS, VS Code and more. Runs on smart-tools.xyz.

  Parameters:

  • technologies (required) — array — Stacks to include. Any of: "Node", "Python", "Java", "Go", "Rust", "PHP", "React / Vite", "macOS", "Windows", "Linux", "VS Code", "JetBrains"
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• gradient_generator

  Build a CSS linear or radial gradient background declaration from two or more colors. Runs on smart-tools.xyz.

  Parameters:

  • colors (required) — array — Color stops, e.g. ["#1a7f5a", "#0d3b66"] (at least 2)
  • type — string — Gradient type (default linear)
  • angle — ['number', 'string'] — Angle in degrees for linear gradients, 0–360 (default 90)
  • locale — string — Language for the source_url link (default en)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• htaccess_generator

  Generate Apache .htaccess rules: force HTTPS, www redirect, caching, gzip, hotlink protection and more. Runs on smart-tools.xyz.

  Parameters:

  • www — string — www redirect: none / add / remove (default none)
  • gzip — boolean — Compress text responses with mod_deflate (default false)
  • cache — boolean — Add browser caching headers (default false)
  • locale — string — Language for the source_url link (default en)
  • error_404 — string — Custom 404 page path, e.g. /404.html
  • force_https — boolean — Redirect all HTTP to HTTPS (default false)
  • block_hotlink — boolean — Block image hotlinking (default false)
  • hotlink_domain — string — Your domain for hotlink protection, e.g. example.com
  • disable_listing — boolean — Disable directory listing (Options -Indexes) (default false)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• meta_tag_generator

  Generate SEO, Open Graph and Twitter Card HTML meta tags for a page. Runs on smart-tools.xyz.

  Parameters:

  • title (required) — string — Page title
  • url — string — Canonical / og:url
  • image — string — og:image / twitter:image URL
  • locale — string — Language for the source_url link (default en)
  • site_name — string — og:site_name
  • description — string — Meta description
  • twitter_card — string — Twitter card type (default summary_large_image)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• random_number_generator

  Generate cryptographically random integers in a range, optionally unique and sorted. Runs on smart-tools.xyz.

  Parameters:

  • min (required) — ['number', 'string'] — Lowest value (inclusive)
  • max (required) — ['number', 'string'] — Highest value (inclusive)
  • count — ['number', 'string'] — How many numbers to generate (default 1, max 10000)
  • locale — string — Language for the source_url link (default en)
  • sorted — boolean — Sort ascending (default false)
  • unique — boolean — No repeats (default false)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• robots_txt_generator

  Build a robots.txt: allow or block all, custom disallow paths, AI-crawler blocking, crawl-delay and sitemap. Runs on smart-tools.xyz.

  Parameters:

  • access — string — allow all, block all, or custom (default allow)
  • locale — string — Language for the source_url link (default en)
  • sitemap — string — Sitemap URL (optional)
  • block_ai — boolean — Also block common AI crawlers (default false)
  • disallow — array — Paths to disallow (used when access=custom)
  • crawl_delay — ['number', 'string'] — Crawl-delay in seconds (optional)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• utm_builder

  Append encoded UTM campaign parameters to a URL, preserving any existing query and fragment. Runs on smart-tools.xyz.

  Parameters:

  • url (required) — string — Base URL, e.g. https://example.com/landing
  • source (required) — string — utm_source, e.g. google
  • medium (required) — string — utm_medium, e.g. cpc
  • campaign (required) — string — utm_campaign, e.g. spring_sale
  • term — string — utm_term (optional)
  • locale — string — Language for the source_url link (default en)
  • content — string — utm_content (optional)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• file_hash

  Compute a SHA-1/256/384/512 hex checksum of provided text or base64 bytes. Runs on smart-tools.xyz.

  Parameters:

  • data — string — Base64-encoded bytes to hash (provide text or data)
  • text — string — UTF-8 text to hash (provide text or data)
  • locale — string — Language for the source_url link (default en)
  • algorithm — string — Hash algorithm (default SHA-256)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• password_generator

  Generate a cryptographically strong random password with configurable length and character sets. Runs on smart-tools.xyz.

  Parameters:

  • digits — boolean — Include 0–9 (default true)
  • length — ['number', 'string'] — Password length, 1–256 (default 20)
  • locale — string — Language for the source_url link (default en)
  • symbols — boolean — Include !@#… (default true)
  • lowercase — boolean — Include a–z (default true)
  • uppercase — boolean — Include A–Z (default true)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

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