head to head · open source
Uptime Kuma vs Vector
Uptime Kuma has 91,498 GitHub stars, 8,431 forks, 805 open issues and last shipped today. Vector has 22,581 stars, 2,285 forks, 2,512 open issues and last shipped today. Uptime Kuma leads on adoption by 305% (91,498 vs 22,581 stars). Uptime Kuma is written in JavaScript under MIT; Vector is written in Rust under MPL-2.0. Uptime Kuma has attracted 9% as many forks as stars, Vector 10%. Vector 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.
← all 8884 open source comparisons
Side by side
| Uptime Kuma | Vector | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 23K |
| License | MIT | MPL-2.0 |
| Written in | JavaScript | Rust |
| Last push | 2026-09-18 | 2026-09-18 |
| Forks | ⑂ 8.4K | ⑂ 2.3K |
| 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 Vector if
- You want the Vector feature set and don't need the biggest community
- You prefer the MPL-2.0 license terms
- Your stack matches Rust
- You evaluated both and Vector 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 Vector
Vector is an open source observability data pipeline written in Rust and licensed under MPL 2.0. It operates as an end to end system for collecting, transforming, and routing logs and metrics within the cloud native monitoring ecosystem. The project is maintained by Datadog's Community Open Source Engineering team, and its topics include agent, cloud native, data transformation, datadog, etl, events, forwarder, logs, metrics, and monitoring.
read the full Vector overview →
More in Infrastructure & Operations
Related comparisons
More Monitoring & Observability projects
Compare either of these against the rest of the Monitoring & Observability field.
Frequently asked questions
Is Uptime Kuma or Vector more popular?
Uptime Kuma has 91,498 GitHub stars and Vector has 22,581. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and Vector free?
Both are open source. Uptime Kuma is licensed under MIT and Vector under MPL-2.0. Neither carries a licence fee.
What is the difference between Uptime Kuma and Vector?
Uptime Kuma is written in JavaScript and Vector in Rust. 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 Vector?
Choose Uptime Kuma if you want the larger community (91,498 stars) or its MIT licence terms. Choose Vector if its feature set, stack or MPL-2.0 licence fits better. Both are self-hostable.