head to head · open source
Sentry vs effect
Sentry has 45,697 GitHub stars, 4,959 forks, 2,265 open issues and last shipped yesterday. effect has 17,464 stars, 892 forks, 253 open issues and last shipped yesterday. Sentry leads on adoption by 162% (45,697 vs 17,464 stars). Sentry is written in Python under a custom or non-standard licence; effect is written in TypeScript under MIT. Sentry has attracted 11% as many forks as stars, effect 5%. Sentry was the more recently maintained of the two, and both are self-hostable with no licence fee.
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 | effect | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 17K |
| License | Custom / other | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 5.0K | ⑂ 892 |
| 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 effect if
- You want the effect feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and effect 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 effect
Effect Effect is a library for building robust, maintainable, type safe, and production grade applications in TypeScript. It helps you handle the hard problems at scale: typed errors, dependency injection, structured concurrency, scheduling, tracing, and unified schema validation. Effect V4 is currently a release candidate. The main branch contains v4 development. Install V4 RC Requirements TypeScript 5.9 or newer. TypeScript 7 is recommended for the best performance and compatibility with Effect's TypeScript tooling. Node.js 18 or newer is the general minimum for running Effect on Node.js. Some integration…
read the full effect overview →
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Frequently asked questions
Is Sentry or effect more popular?
Sentry has 45,697 GitHub stars and effect has 17,464. Sentry has the larger community by that measure.
Are Sentry and effect free?
Both are open source. Sentry has no licence declared in this registry, and effect is licensed under MIT. Both are free to self-host.
What is the difference between Sentry and effect?
Sentry is written in Python and effect in TypeScript. 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 effect?
Choose Sentry if you want the larger community (45,697 stars) or its Custom / other licence terms. Choose effect if its feature set, stack or MIT licence fits better. Both are self-hostable.