Colormind vs ReSmush.it

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms362462
P95 · ms22402901
Authnonenone
CORSyesyes
HTTPSnono
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedN/A — optimization service, not a dataset
Free tierFree — limits not publishedFree; per-image size cap applies (see docs)
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Colormind vs ReSmush.it: common questions

Which is more reliable, Colormind or ReSmush.it?

Both are neck-and-neck — Colormind and ReSmush.it 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, Colormind or ReSmush.it?

Colormind has the lower median latency in our checks — Colormind responds in 362 ms versus ReSmush.it at 462 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 Colormind and ReSmush.it need an API key?

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

Can I call Colormind and ReSmush.it from the browser?

Neither sends browser-friendly CORS headers reliably, so call Colormind and ReSmush.it from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Colormind and ReSmush.it free for commercial use?

Colormind has unclear commercial terms, and ReSmush.it 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.