Kroki vs Sheetsu
Same instrument, two spec sheets — measured, not claimed.
Kroki vs Sheetsu: common questions
Which is more reliable, Kroki or Sheetsu?
Both are neck-and-neck — Kroki and Sheetsu 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 Sheetsu?
Sheetsu has the lower median latency in our checks — Kroki responds in 633 ms versus Sheetsu at 572 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 Sheetsu need an API key?
Kroki needs no key, while Sheetsu requires a free API key. If you want to start calling without signup, reach for Kroki first.
Can I call Kroki and Sheetsu from the browser?
Yes — both Kroki and Sheetsu 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 Sheetsu free for commercial use?
Kroki has unclear commercial terms, and Sheetsu 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.