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LibreTranslate

Self-hostable machine translation with an open API

🔧 Developer ToolsHEALTHYchecked 11h ago
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.

92HOW IT'S SCORED ⓘ
▶ Run liveDocs ↗
Status badge · for your READMEshipapis health badge: 92 · healthy
Uptime history
100%90 days
100%30 days
619P50 · ms
1474P95 · ms
operationalpartialdownno data
Response time · last 48 checks
Fastest 48 ms, slowest 1378 ms, most recent 157 ms.
Live response samplecaptured by our last successful check
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 · 2HealthyFULL DOCS ↗
Monitored path responding — GET /languages619 mschecked 11h ago
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

Stable. No schema drift observed since monitoring began — the response shape has not changed under our checks.

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 You can call it straight away; rate limits still apply (Unpublished (per hosted instance)).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?

As of our last scheduled check, LibreTranslate is healthy with 100% uptime over 90 days and a 619 ms median response. We re-probe it every sweep — the status badge and uptime chart above always show the latest.