Hoppscotch vs Kroki
Same instrument, two spec sheets — measured, not claimed.
Hoppscotch vs Kroki: common questions
Which is more reliable, Hoppscotch or Kroki?
Both are neck-and-neck — Hoppscotch and Kroki 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, Hoppscotch or Kroki?
Kroki has the lower median latency in our checks — Hoppscotch responds in 346 ms versus Kroki at 341 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 Hoppscotch and Kroki need an API key?
Neither needs a paid key — Hoppscotch is callable with no signup, and Kroki is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Hoppscotch and Kroki from the browser?
Yes — both Hoppscotch and Kroki 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 Hoppscotch and Kroki free for commercial use?
Hoppscotch has unclear commercial terms, and Kroki 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.