Kroki vs LibreTranslate
Same instrument, two spec sheets — measured, not claimed.
Kroki vs LibreTranslate: common questions
Which is more reliable, Kroki or LibreTranslate?
Both are neck-and-neck — Kroki 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, Kroki or LibreTranslate?
LibreTranslate has the lower median latency in our checks — Kroki responds in 633 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 Kroki and LibreTranslate need an API key?
Neither needs a paid key — Kroki 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 Kroki and LibreTranslate from the browser?
Yes — both Kroki 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 Kroki and LibreTranslate free for commercial use?
Kroki 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.