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Gyazo vs QuickChart

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

APIGyazoNEW—QuickChartNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Gyazo vs QuickChart: common questions

Which is more reliable, Gyazo or QuickChart?

On our scheduled checks, QuickChart leads on measured uptime — Gyazo at —% versus QuickChart 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 Gyazo and QuickChart need an API key?

QuickChart needs no key, while Gyazo requires a free API key. If you want to start calling without signup, reach for QuickChart first.

Can I call Gyazo and QuickChart from the browser?

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

Are Gyazo and QuickChart free for commercial use?

Gyazo has unclear commercial terms, and QuickChart 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.