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Gyazo vs Html2PDF

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

APIGyazoNEW—Html2PDFNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Gyazo vs Html2PDF: common questions

Which is more reliable, Gyazo or Html2PDF?

On our scheduled checks, Html2PDF leads on measured uptime — Gyazo at —% versus Html2PDF 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 Html2PDF need an API key?

Both ask you to authenticate — Gyazo uses an API key and Html2PDF uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Gyazo and Html2PDF from the browser?

Only Html2PDF is browser-friendly — it returns CORS headers over HTTPS. Gyazo needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Gyazo and Html2PDF free for commercial use?

Gyazo has unclear commercial terms, and Html2PDF 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.