Kroki vs OpenQR
Same instrument, two spec sheets — measured, not claimed.
Kroki vs OpenQR: common questions
Which is more reliable, Kroki or OpenQR?
Both are neck-and-neck — Kroki and OpenQR each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, Kroki or OpenQR?
Kroki has the lower median latency in our checks — Kroki responds in 633 ms versus OpenQR at 1125 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do Kroki and OpenQR need an API key?
Kroki needs no key, while OpenQR requires a free API key. If you want to start calling without signup, reach for Kroki first.
Can I call Kroki and OpenQR from the browser?
Yes — both Kroki and OpenQR 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 OpenQR free for commercial use?
Kroki has unclear commercial terms, and OpenQR 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.