Conversion
Every listing carries the same fields in the same order. Counts beside each filter update as you narrow.
| API | Pricing | Auth | Format | Free tier | Status |
|---|---|---|---|---|---|
CodeCogs Equation EditorRenders LaTeX equations as PNG, SVG, GIF, EMF, or PDF images from a plain URL. Utilities › Conversion | Freemium | None | Binary | 1k–10k/day | Live |
DigiDatesSmall date/time utility API: unix timestamps, leap years, age, countdowns, German public holidays. Utilities › Conversion | Free | None | JSON | Unlimited | Live |
JSON 2 JSONPWraps any JSON URL in a JSONP callback for legacy cross-domain requests, no key needed. Utilities › Conversion | Free | None | JSON | Unlimited | Live |
NerdulatorDeterministically identifies and converts any input (numbers, dates, colours, UUIDs, cron expressions). Utilities › Conversion | Free | None | JSON | 10k+/day | Live |
SQLableConverts CSV data to JSON Lines (JSONL) with automatic number detection, via a single POST endpoint. Utilities › Conversion | Free | None | JSON | Unlimited | Untested |
Utilorax200+ calculator, converter, hashing, text and file endpoints (BMI, unit conversion, hashes, PDFs). Utilities › Conversion | Freemium | API key | JSON | <100/day | Live |
YAMLineConverts YAML documents to equivalent JSON via a single POST endpoint, no key required. Utilities › Conversion | Free | None | JSON | Unlimited | Untested |
CodeCogs Equation EditorFreemiumLive
Renders LaTeX equations as PNG, SVG, GIF, EMF, or PDF images from a plain URL.
None · Binary
1k–10k/day
no machine-readable spec
DigiDatesFreeLive
Small date/time utility API: unix timestamps, leap years, age, countdowns, German public holidays.
None · JSON
Unlimited
no machine-readable spec
JSON 2 JSONPFreeLive
Wraps any JSON URL in a JSONP callback for legacy cross-domain requests, no key needed.
None · JSON
Unlimited
no machine-readable spec
NerdulatorFreeLive
Deterministically identifies and converts any input (numbers, dates, colours, UUIDs, cron expressions).
None · JSON
10k+/day
OpenAPI spec
SQLableFreeUntested
Converts CSV data to JSON Lines (JSONL) with automatic number detection, via a single POST endpoint.
None · JSON
Unlimited
no machine-readable spec
UtiloraxFreemiumLive
200+ calculator, converter, hashing, text and file endpoints (BMI, unit conversion, hashes, PDFs).
API key · JSON
<100/day
llms.txt
YAMLineFreeUntested
Converts YAML documents to equivalent JSON via a single POST endpoint, no key required.
None · JSON
Unlimited
no machine-readable spec
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