ip-api.com vs LibreTranslate

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
Authnonenone
CORSyesyes
HTTPSnoyes
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

ip-api.com vs LibreTranslate: common questions

Which is more reliable, ip-api.com or LibreTranslate?

On our scheduled checks, LibreTranslate leads on measured uptime — ip-api.com at —% versus LibreTranslate at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do ip-api.com and LibreTranslate need an API key?

Neither needs a paid key — ip-api.com 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 ip-api.com and LibreTranslate from the browser?

Only LibreTranslate is browser-friendly — it returns CORS headers over HTTPS. ip-api.com needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are ip-api.com and LibreTranslate free for commercial use?

ip-api.com 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.