head to head · open source
Sentry vs datadog-agent
Sentry has 44,806 GitHub stars, 4,857 forks, 2,265 open issues and last shipped today. datadog-agent has 3,733 stars, 1,495 forks, 721 open issues and last shipped today. Sentry leads on adoption by 1,100% (44,806 vs 3,733 stars). Sentry is written in Python under a custom or non-standard licence; datadog-agent is written in Go under Apache-2.0. Sentry has attracted 11% as many forks as stars, datadog-agent 40%. datadog-agent 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
| Sentry | datadog-agent | |
|---|---|---|
| GitHub stars | ★ 45K | ★ 3.7K |
| License | Custom / other | Apache-2.0 |
| Written in | Python | Go |
| Last push | 2026-09-20 | 2026-09-20 |
| Forks | ⑂ 4.9K | ⑂ 1.5K |
| 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 datadog-agent if
- You want the datadog-agent 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 datadog-agent 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 datadog-agent
The Datadog Agent repository is the main source repository for the Datadog Agent, which belongs to the Datadog observability ecosystem and is associated with monitoring, metrics, logging, distributed tracing, and profiling. The repository contains source code for Datadog Agent version 7 and version 6, and it points to Agent user documentation for differences among version 5, version 6, and version 7. It also links to prepackaged binaries and developer documentation.
read the full datadog-agent overview →
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Frequently asked questions
Is Sentry or datadog-agent more popular?
Sentry has 44,806 GitHub stars and datadog-agent has 3,733. Sentry has the larger community by that measure.
Are Sentry and datadog-agent free?
Both are open source. Sentry has no licence declared in this registry, and datadog-agent is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Sentry and datadog-agent?
Sentry is written in Python and datadog-agent 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, Sentry or datadog-agent?
Choose Sentry if you want the larger community (44,806 stars) or its Custom / other licence terms. Choose datadog-agent if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.