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InternetDB API vs LibreTranslate

Same instrument, two spec sheets — measured, not claimed.

APIInternetDB APIHEALTHY99LibreTranslateHEALTHY92
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms133619
P95 · ms22601474
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (software is AGPL-3.0)
Free tierFree — limits not publishedFree — /languages is keyless; hosted /translate may require a key or donation
Rate limitUnpublishedUnpublished (per hosted instance)
In directory since2026-07-052026-07-05
operationalpartialdownno data

InternetDB API vs LibreTranslate: common questions

Which is more reliable, InternetDB API or LibreTranslate?

Both are neck-and-neck — InternetDB API and LibreTranslate each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, InternetDB API or LibreTranslate?

InternetDB API has the lower median latency in our checks — InternetDB API responds in 133 ms versus LibreTranslate at 619 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do InternetDB API and LibreTranslate need an API key?

Neither needs a paid key — InternetDB API is callable with no signup, and LibreTranslate is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call InternetDB API and LibreTranslate from the browser?

Yes — both InternetDB API and LibreTranslate send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are InternetDB API and LibreTranslate free for commercial use?

InternetDB API has unclear commercial terms, and LibreTranslate has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.