head to head · open source
Sentry vs Foundatio
Sentry has 45,704 GitHub stars, 4,959 forks, 2,265 open issues and last shipped yesterday. Foundatio has 2,104 stars, 250 forks, 15 open issues and last shipped 7 days ago. Sentry leads on adoption by 2,072% (45,704 vs 2,104 stars). Sentry is written in Python under a custom or non-standard licence; Foundatio is written in C# under Apache-2.0. Sentry has attracted 11% as many forks as stars, Foundatio 12%. 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.
← all 20902 open source comparisons
Side by side
| Sentry | Foundatio | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 2.1K |
| License | Custom / other | Apache-2.0 |
| Written in | Python | C# |
| Last push | 2026-11-04 | 2026-10-29 |
| Forks | ⑂ 5.0K | ⑂ 250 |
| 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 Foundatio if
- You want the Foundatio feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches C#
- You evaluated both and Foundatio 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 Foundatio
Pluggable foundation blocks for building loosely coupled distributed apps. ✨ Why Choose Foundatio? 🔌 Pluggable implementations Swap Redis, Azure, AWS, or in memory with no code changes 🧪 Developer friendly In memory implementations for fast local development and testing 💉 DI native Built for Microsoft.Extensions.DependencyInjection 🎯 Interface first Code against abstractions, not implementations ⚡ Production ready Battle tested in high scale applications 🔄 Consistent APIs Same patterns across caching, queues, storage, and more 🧱 Core Building Blocks 🚀 Quick Start 📦 Provider Implementations 📚 Learn More…
read the full Foundatio 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 Sentry or Foundatio more popular?
Sentry has 45,704 GitHub stars and Foundatio has 2,104. Sentry has the larger community by that measure.
Are Sentry and Foundatio free?
Both are open source. Sentry has no licence declared in this registry, and Foundatio is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Sentry and Foundatio?
Sentry is written in Python and Foundatio in C#. 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 Foundatio?
Choose Sentry if you want the larger community (45,704 stars) or its Custom / other licence terms. Choose Foundatio if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.