head to head · open source
Sentry vs Vector
Sentry has 44,792 GitHub stars, 4,854 forks, 2,265 open issues and last shipped yesterday. Vector has 22,579 stars, 2,286 forks, 2,512 open issues and last shipped yesterday. Sentry leads on adoption by 98% (44,792 vs 22,579 stars). Sentry is written in Python under a custom or non-standard licence; Vector is written in Rust under MPL-2.0. Sentry has attracted 11% as many forks as stars, Vector 10%. Sentry was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (hacktoberfest, 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
| Sentry | Vector | |
|---|---|---|
| GitHub stars | ★ 45K | ★ 23K |
| License | Custom / other | MPL-2.0 |
| Written in | Python | Rust |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 4.9K | ⑂ 2.3K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Sentry if
- You weight community size — 45K stars and counting
- You want the Custom / other license terms
- Your stack matches Python
- 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 Sentry
Sentry is an open source debugging platform for detecting, tracing, and fixing software issues in real time. It lives in the developer infrastructure ecosystem and provides error tracking and performance monitoring across languages, frameworks, and runtime environments.
read the full Sentry 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 →
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Frequently asked questions
Is Sentry or Vector more popular?
Sentry has 44,792 GitHub stars and Vector has 22,579. Sentry has the larger community by that measure.
Are Sentry and Vector free?
Both are open source. Sentry has no licence declared in this registry, and Vector is licensed under MPL-2.0. Both are free to self-host.
What is the difference between Sentry and Vector?
Sentry is written in Python 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, Sentry or Vector?
Choose Sentry if you want the larger community (44,792 stars) or its Custom / other licence terms. Choose Vector if its feature set, stack or MPL-2.0 licence fits better. Both are self-hostable.