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MusicBrainz vs ReSmush.it

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

APIMusicBrainzNEW—ReSmush.itNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesno
Card requirednono
Commercial useyesunclear
Data licenseCore data CC0; some supplementary data CC BY-NC-SA 3.0N/A — optimization service, not a dataset
Free tierFree — no key requiredFree; per-image size cap applies (see docs)
Rate limit~1 request/second per IP; descriptive User-Agent requiredUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

MusicBrainz vs ReSmush.it: common questions

Which is more reliable, MusicBrainz or ReSmush.it?

On our scheduled checks, ReSmush.it leads on measured uptime — MusicBrainz 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 MusicBrainz and ReSmush.it need an API key?

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

Only MusicBrainz 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 MusicBrainz and ReSmush.it free for commercial use?

MusicBrainz allows commercial use on its free tier, 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.