head to head · open source
Sentry vs guider
Sentry has 45,704 GitHub stars, 4,959 forks, 2,265 open issues and last shipped yesterday. guider has 683 stars, 103 forks, 26 open issues and last shipped 3 days ago. Sentry leads on adoption by 6,592% (45,704 vs 683 stars). Sentry is written in Python under a custom or non-standard licence; guider is written in Python under GPL-2.0. Sentry has attracted 11% as many forks as stars, guider 15%. 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 | guider | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 683 |
| License | Custom / other | GPL-2.0 |
| Written in | Python | Python |
| Last push | 2026-11-04 | 2026-11-02 |
| Forks | ⑂ 5.0K | ⑂ 103 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Sentry if
- You weight community size — 46K 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 guider if
- You want the guider feature set and don't need the biggest community
- You prefer the GPL-2.0 license terms
- Your stack matches Python
- You evaluated both and guider fits your workflow better
About Sentry
Users and logs provide clues. Sentry provides answers. What's Sentry? Sentry is the debugging platform that helps every developer detect, trace, and fix issues. Code breaks, fix it faster. Official Sentry SDKs JavaScript Electron React Native Python Ruby PHP Laravel Go Rust Java/Kotlin Objective C/Swift C\ /F\ C/C++ Dart/Flutter Perl Clojure Elixir Unity Unreal Engine Godot Engine PowerShell Resources Documentation Discussions (Bugs, feature requests, general questions) Discord Contributing Bug Tracker Code Transifex (Translate Sentry\!)
read the full Sentry overview →
About guider
Table of contents ================= Guider Overview Output How to use Build & Installation Kernel Configuration Help Guider ======= Guider is a powerful and versatile performance analysis tool , designed to simplify and enhance system performance monitoring, profiling, and debugging for optimizing system performance and resource utilization across various platforms. With additional features like tracing, visualization, control, logging, networking, testing, and utilities, Guider offers a comprehensive set of tools to measure, analyze, and optimize system performance. Guider provides a continuous system…
read the full guider overview →
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Frequently asked questions
Is Sentry or guider more popular?
Sentry has 45,704 GitHub stars and guider has 683. Sentry has the larger community by that measure.
Are Sentry and guider free?
Both are open source. Sentry has no licence declared in this registry, and guider is licensed under GPL-2.0. Both are free to self-host.
What is the difference between Sentry and guider?
Sentry is written in Python and guider in Python. 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 guider?
Choose Sentry if you want the larger community (45,704 stars) or its Custom / other licence terms. Choose guider if its feature set, stack or GPL-2.0 licence fits better. Both are self-hostable.