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LibreTranslate vs ListLoco API

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

APILibreTranslateHEALTHY92ListLoco APIHEALTHY100
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms619127
P95 · ms1474443
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (software is AGPL-3.0)Unverified
Free tierFree — /languages is keyless; hosted /translate may require a key or donationFree — limits not published
Rate limitUnpublished (per hosted instance)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

LibreTranslate vs ListLoco API: common questions

Which is more reliable, LibreTranslate or ListLoco API?

Both are neck-and-neck — LibreTranslate and ListLoco API 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, LibreTranslate or ListLoco API?

ListLoco API has the lower median latency in our checks — LibreTranslate responds in 619 ms versus ListLoco API at 127 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 LibreTranslate and ListLoco API need an API key?

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

Can I call LibreTranslate and ListLoco API from the browser?

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

Are LibreTranslate and ListLoco API free for commercial use?

LibreTranslate has unclear commercial terms, and ListLoco API 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.