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RandomUser vs ReqRes

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

APIRandomUserHEALTHY78ReqResHEALTHY98
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms210256
P95 · ms774582
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (generated data; sample photos governed by UI Faces terms)Unverified
Free tierFree — no key or signupFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

RandomUser vs ReqRes: common questions

Which is more reliable, RandomUser or ReqRes?

Both are neck-and-neck — RandomUser and ReqRes 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, RandomUser or ReqRes?

RandomUser has the lower median latency in our checks — RandomUser responds in 210 ms versus ReqRes at 256 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 RandomUser and ReqRes need an API key?

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

Can I call RandomUser and ReqRes from the browser?

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

Are RandomUser and ReqRes free for commercial use?

RandomUser has unclear commercial terms, and ReqRes 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.