head to head · open source
strix vs ADR
strix has 63,734 GitHub stars, 6,971 forks, 383 open issues and last shipped today. ADR has 1,575 stars, 148 forks, 6 open issues and last shipped yesterday. strix leads on adoption by 3,947% (63,734 vs 1,575 stars). strix is written in Python under Apache-2.0; ADR is written in Python under Apache-2.0. strix has attracted 11% as many forks as stars, ADR 9%. strix was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai-security), 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
| strix | ADR | |
|---|---|---|
| GitHub stars | ★ 64K | ★ 1.6K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | Python |
| Last push | 2026-09-20 | 2026-09-19 |
| Forks | ⑂ 7.0K | ⑂ 148 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick strix if
- You weight community size — 64K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick ADR if
- You want the ADR feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and ADR fits your workflow better
About strix
Strix is an open source AI penetration testing tool that deploys autonomous AI agents against a running codebase to find, validate, and fix application vulnerabilities, built for developers and security teams who want dynamic security testing without the cost and scheduling overhead of manual pentesting.
read the full strix overview →
About ADR
ADR is an open source enterprise security system for AI agents. It is built in Python under the Apache 2.0 license and lives in the AI security and privacy ecosystem. It targets employee facing coding agents such as Cursor, Claude Code, Codex, GitHub Copilot CLI, and DeepSeek Harness, and customer facing agents such as AI support agents.
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Frequently asked questions
Is strix or ADR more popular?
strix has 63,734 GitHub stars and ADR has 1,575. strix has the larger community by that measure.
Are strix and ADR free?
Both are open source. strix is licensed under Apache-2.0 and ADR under Apache-2.0. Neither carries a licence fee.
What is the difference between strix and ADR?
strix is written in Python and ADR 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, strix or ADR?
Choose strix if you want the larger community (63,734 stars) or its Apache-2.0 licence terms. Choose ADR if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.