Kroki vs NetworkCalc
Same instrument, two spec sheets — measured, not claimed.
Kroki vs NetworkCalc: common questions
Which is more reliable, Kroki or NetworkCalc?
On our scheduled checks, NetworkCalc leads on measured uptime — Kroki at —% versus NetworkCalc 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 NetworkCalc need an API key?
Neither needs a paid key — Kroki is callable with no signup, and NetworkCalc is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Kroki and NetworkCalc from the browser?
Yes — both Kroki and NetworkCalc 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 NetworkCalc free for commercial use?
Kroki has unclear commercial terms, and NetworkCalc 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.