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ReSmush.it vs The Color API

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

APIReSmush.itHEALTHY93The Color APIHEALTHY93
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms462525
P95 · ms29011314
Authnonenone
CORSyesyes
HTTPSnoyes
Card requirednono
Commercial useunclearunclear
Data licenseN/A — optimization service, not a datasetUnverified
Free tierFree; per-image size cap applies (see docs)Free — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ReSmush.it vs The Color API: common questions

Which is more reliable, ReSmush.it or The Color API?

Both are neck-and-neck — ReSmush.it and The Color 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, ReSmush.it or The Color API?

ReSmush.it has the lower median latency in our checks — ReSmush.it responds in 462 ms versus The Color API at 525 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 ReSmush.it and The Color API need an API key?

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

Can I call ReSmush.it and The Color API from the browser?

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

Are ReSmush.it and The Color API free for commercial use?

ReSmush.it has unclear commercial terms, and The Color 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.