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Radio Browser vs ReSmush.it

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

APIRadio BrowserNEW—ReSmush.itNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesno
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedN/A — optimization service, not a dataset
Free tierFree and open source — no keyFree; per-image size cap applies (see docs)
Rate limitUnpublished (clients asked to send a descriptive User-Agent)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Radio Browser vs ReSmush.it: common questions

Which is more reliable, Radio Browser or ReSmush.it?

On our scheduled checks, ReSmush.it leads on measured uptime — Radio Browser at —% versus ReSmush.it at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Radio Browser and ReSmush.it need an API key?

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

Only Radio Browser 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 Radio Browser and ReSmush.it free for commercial use?

Radio Browser 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.