Html2PDF vs Image-Charts

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthapiKeynone
CORSyesno
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

Html2PDF vs Image-Charts: common questions

Which is more reliable, Html2PDF or Image-Charts?

On our scheduled checks, Image-Charts leads on measured uptime — Html2PDF at —% versus Image-Charts 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 Html2PDF and Image-Charts need an API key?

Image-Charts needs no key, while Html2PDF requires a free API key. If you want to start calling without signup, reach for Image-Charts first.

Can I call Html2PDF and Image-Charts from the browser?

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

Are Html2PDF and Image-Charts free for commercial use?

Html2PDF has unclear commercial terms, and Image-Charts 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.