Utilorax
FreemiumLiveLast verified 24 Sept 2026
200+ calculator, converter, hashing, text and file endpoints (BMI, unit conversion, hashes, PDFs).
Example request
curl -s 'https://utilorax.com/api/v1/calc/bmi?weight=70&height=175'
Free tier, in plain English
A key-free demo quota of 40 calls a day; a free account raises this to 500 requests a month, reset monthly (UTC).
Alternatives in Conversion
CodeCogs Equation EditorRenders LaTeX equations as PNG, SVG, GIF, EMF, or PDF images from a plain URL.FreemiumDigiDatesSmall date/time utility API: unix timestamps, leap years, age, countdowns, German public holidays.FreeJSON 2 JSONPWraps any JSON URL in a JSONP callback for legacy cross-domain requests, no key needed.FreeNerdulatorDeterministically identifies and converts any input (numbers, dates, colours, UUIDs, cron expressions).FreeSQLableConverts CSV data to JSON Lines (JSONL) with automatic number detection, via a single POST endpoint.Free