head to head · open source
Uptime Kuma vs opentelemetry-collector
Uptime Kuma has 91,477 GitHub stars, 8,426 forks, 805 open issues and last shipped yesterday. opentelemetry-collector has 7,564 stars, 2,249 forks, 696 open issues and last shipped yesterday. Uptime Kuma leads on adoption by 1,109% (91,477 vs 7,564 stars). Uptime Kuma is written in JavaScript under MIT; opentelemetry-collector is written in Go under Apache-2.0. Uptime Kuma has attracted 9% as many forks as stars, opentelemetry-collector 30%. Uptime Kuma was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (monitoring), so they are genuine substitutes rather than adjacent tools.
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-collector | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 7.6K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Go |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 8.4K | ⑂ 2.2K |
| 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-collector if
- You want the opentelemetry-collector feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and opentelemetry-collector 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-collector
The OpenTelemetry Collector is a vendor agnostic, Apache 2.0 licensed telemetry agent and collector, written in Go, that receives, processes and exports telemetry data for teams running observability pipelines and distributed systems.
read the full opentelemetry-collector overview →
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Frequently asked questions
Is Uptime Kuma or opentelemetry-collector more popular?
Uptime Kuma has 91,477 GitHub stars and opentelemetry-collector has 7,564. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and opentelemetry-collector free?
Both are open source. Uptime Kuma is licensed under MIT and opentelemetry-collector under Apache-2.0. Neither carries a licence fee.
What is the difference between Uptime Kuma and opentelemetry-collector?
Uptime Kuma is written in JavaScript and opentelemetry-collector in Go. 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-collector?
Choose Uptime Kuma if you want the larger community (91,477 stars) or its MIT licence terms. Choose opentelemetry-collector if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.