head to head · open source
Sentry vs RedELK
Sentry has 45,707 GitHub stars, 4,965 forks, 2,265 open issues and last shipped yesterday. RedELK has 2,687 stars, 388 forks, 13 open issues and last shipped yesterday. Sentry leads on adoption by 1,601% (45,707 vs 2,687 stars). Sentry is written in Python under a custom or non-standard licence; RedELK is written in Python under BSD-3-Clause. Sentry has attracted 11% as many forks as stars, RedELK 14%. Sentry 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 | RedELK | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 2.7K |
| License | Custom / other | BSD-3-Clause |
| Written in | Python | Python |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 5.0K | ⑂ 388 |
| 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 RedELK if
- You want the RedELK feature set and don't need the biggest community
- You prefer the BSD-3-Clause license terms
- Your stack matches Python
- You evaluated both and RedELK 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 RedELK
RedELK The Red Team's SIEM a tool for Red Teams for tracking and alarming about Blue Team activities as well as enhanced usability in long term operations. 1. Enhanced usability and overview for the red team operators by creating a central location where all relevant operational logs from multiple teamservers are collected and enriched. This is great for historic searching within the operation as well as giving a read only view on the operation (e.g. for the White Team). Especially useful for multi scenario, multi teamserver, multi member and multi month operations. Also, super easy ways for viewing all…
read the full RedELK overview →
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Frequently asked questions
Is Sentry or RedELK more popular?
Sentry has 45,707 GitHub stars and RedELK has 2,687. Sentry has the larger community by that measure.
Are Sentry and RedELK free?
Both are open source. Sentry has no licence declared in this registry, and RedELK is licensed under BSD-3-Clause. Both are free to self-host.
What is the difference between Sentry and RedELK?
Sentry is written in Python and RedELK 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 RedELK?
Choose Sentry if you want the larger community (45,707 stars) or its Custom / other licence terms. Choose RedELK if its feature set, stack or BSD-3-Clause licence fits better. Both are self-hostable.