Kroki vs PaperClean
Same instrument, two spec sheets — measured, not claimed.
Kroki vs PaperClean: common questions
Which is more reliable, Kroki or PaperClean?
On our scheduled checks, PaperClean leads on measured uptime — Kroki at —% versus PaperClean 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 Kroki and PaperClean need an API key?
Kroki needs no key, while PaperClean requires a free API key. If you want to start calling without signup, reach for Kroki first.
Can I call Kroki and PaperClean from the browser?
Yes — both Kroki and PaperClean send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are Kroki and PaperClean free for commercial use?
Kroki has unclear commercial terms, and PaperClean 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.