head to head · open source
mantis vs openqodex
mantis has 2,400 GitHub stars, 203 forks, 1 open issues and last shipped 3 days ago. openqodex has 519 stars, 34 forks, 24 open issues and last shipped today. mantis leads on adoption by 362% (2,400 vs 519 stars). mantis is written in Python under Apache-2.0; openqodex is written in TypeScript under Apache-2.0. mantis has attracted 8% as many forks as stars, openqodex 7%. openqodex was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (ai-agents, code-review), 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
| mantis | openqodex | |
|---|---|---|
| GitHub stars | ★ 2.4K | ★ 519 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | TypeScript |
| Last push | 2026-10-07 | 2026-10-10 |
| Forks | ⑂ 203 | ⑂ 34 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick mantis if
- You weight community size — 2.4K 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 openqodex if
- You want the openqodex feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and openqodex fits your workflow better
About mantis
Mantis is a modular, stack agnostic toolkit of security review skills for AI coding agents, and it includes an ADK reference harness for building secure software. It lives in the developer tools, AI coding agent, and application security ecosystem, with topics such as code review, DevSecOps, multi agent systems, and hardware security. The project helps agents autonomously find, reproduce, and patch vulnerabilities while giving humans a structured way to review results.
read the full mantis overview →
About openqodex
OpenQodex is an open source AI code review tool that runs before you push, for developers who work inside Claude Code or Codex and want scanner backed findings checked by a separate reviewer process.
read the full openqodex overview →
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Frequently asked questions
Is mantis or openqodex more popular?
mantis has 2,400 GitHub stars and openqodex has 519. mantis has the larger community by that measure.
Are mantis and openqodex free?
Both are open source. mantis is licensed under Apache-2.0 and openqodex under Apache-2.0. Neither carries a licence fee.
What is the difference between mantis and openqodex?
mantis is written in Python and openqodex 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, mantis or openqodex?
Choose mantis if you want the larger community (2,400 stars) or its Apache-2.0 licence terms. Choose openqodex if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.