Deezer vs ReSmush.it

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms232462
P95 · ms9732901
Authnonenone
CORSnoyes
HTTPSyesno
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

Deezer vs ReSmush.it: common questions

Which is more reliable, Deezer or ReSmush.it?

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

Deezer has the lower median latency in our checks — Deezer responds in 232 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 Deezer and ReSmush.it need an API key?

Neither needs a paid key — Deezer 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 Deezer and ReSmush.it from the browser?

Neither sends browser-friendly CORS headers reliably, so call Deezer 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 Deezer and ReSmush.it free for commercial use?

Deezer 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.