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LibreTranslate

Self-hostable machine translation with an open API

🔧 Developer ToolsUNMONITORED
AUTH NONECORS ✓AGENT ?HTTPS ✓COMMERCIAL ?

An open-source translation engine whose hosted instance exposes /languages as a keyless JSON GET listing supported language pairs. The actual /translate call on the public host may require an API key or donation. The software is AGPL-3.0 and can be self-hosted for unrestricted use.

—HOW IT'S SCORED ⓘ
▶ Run liveDocs ↗
Status badge · for your READMEshipapis health badge: — · unmonitored
ON PROBE SCHEDULE

We probe a documented GET and expect 2xx JSON — full uptime and health score. Open provider docs ↗

Uptime historystarts after first probe

On our probe schedule. Uptime charts appear after the first check lands.

Example responsefrom provider docs — not verified by us
GET https://libretranslate.com/languages

[
  {
    "code": "en",
    "name": "English",
    "targets": [
      "ar",
      "az",
      "bg"
    ]
  },
  {
    "code": "sq",
    "name": "Albanian",
    "targets": [
      "ar",
      "az",
      "bg"
    ]
  }
]
Call itcurl · fetch · python
curl "https://libretranslate.com/languages"
const res = await fetch("https://libretranslate.com/languages");
const data = await res.json();
console.log(data);
import requests

res = requests.get("https://libretranslate.com/languages")
print(res.json())
Endpoints · 2On scheduleFULL DOCS ↗
On schedule — GET /languages awaits first probe
GET/languagesPROBED

Self-hostable machine translation with an open API

GET/languages?limit=5

Paginated variant with limit parameter.

Machine-readable spec

We probe a documented GET and expect 2xx JSON — full uptime and health score. Export includes every documented route below.

Response-shape history

Not tracked yet. Shape-change history starts once this API joins our probe schedule.

LibreTranslate: common questions

Is LibreTranslate free to use?

Yes — LibreTranslate is a free developer tools API. Free tier: Free — /languages is keyless; hosted /translate may require a key or donation. Whether the free tier allows commercial use is unclear — check the provider docs.

Does LibreTranslate need an API key?

No — LibreTranslate needs no API key or signup. You can call it straight away; rate limits still apply (Unpublished (per hosted instance)).

Can I call LibreTranslate from the browser?

Yes — LibreTranslate returns CORS headers over HTTPS, so front-end code can fetch it directly with no backend proxy. Use the fetch snippet on this page, or hit "Run live" to try it now.

Is LibreTranslate up right now?

LibreTranslate is catalogued but not yet on our probe schedule, so we don't publish a live status for it. Check the provider's own status page or docs for its current state.