head to head · open source
Uptime Kuma vs opentelemetry-cpp
Uptime Kuma has 91,498 GitHub stars, 8,431 forks, 805 open issues and last shipped yesterday. opentelemetry-cpp has 1,377 stars, 631 forks, 290 open issues and last shipped yesterday. Uptime Kuma leads on adoption by 6,545% (91,498 vs 1,377 stars). Uptime Kuma is written in JavaScript under MIT; opentelemetry-cpp is written in C++ under Apache-2.0. Uptime Kuma has attracted 9% as many forks as stars, opentelemetry-cpp 46%. opentelemetry-cpp was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Uptime Kuma | opentelemetry-cpp | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 1.4K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | C++ |
| Last push | 2026-09-18 | 2026-09-18 |
| Forks | ⑂ 8.4K | ⑂ 631 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Uptime Kuma if
- You weight community size — 91K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick opentelemetry-cpp if
- You want the opentelemetry-cpp feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches C++
- You evaluated both and opentelemetry-cpp fits your workflow better
About Uptime Kuma
Uptime Kuma is a free, MIT licensed, self hosted monitoring tool with a reactive web dashboard, built for operators and teams that want to watch their own HTTP, TCP, and DNS endpoints and keep the resulting data on their own infrastructure.
read the full Uptime Kuma overview →
About opentelemetry-cpp
OpenTelemetry C++ is the official C++ client for OpenTelemetry, the vendor neutral observability framework, and it is built for C++ application owners and library authors who need to emit logs, metrics, and traces from native code.
read the full opentelemetry-cpp overview →
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Frequently asked questions
Is Uptime Kuma or opentelemetry-cpp more popular?
Uptime Kuma has 91,498 GitHub stars and opentelemetry-cpp has 1,377. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and opentelemetry-cpp free?
Both are open source. Uptime Kuma is licensed under MIT and opentelemetry-cpp under Apache-2.0. Neither carries a licence fee.
What is the difference between Uptime Kuma and opentelemetry-cpp?
Uptime Kuma is written in JavaScript and opentelemetry-cpp in C++. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Uptime Kuma or opentelemetry-cpp?
Choose Uptime Kuma if you want the larger community (91,498 stars) or its MIT licence terms. Choose opentelemetry-cpp if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.