head to head · open source
Dify vs VulnClaw
Dify has 156,215 GitHub stars, 24,668 forks, 1,067 open issues and last shipped yesterday. VulnClaw has 3,363 stars, 457 forks, 13 open issues and last shipped 2 days ago. Dify leads on adoption by 4,545% (156,215 vs 3,363 stars). Dify is written in TypeScript under a custom or non-standard licence; VulnClaw is written in Python under MIT. Dify has attracted 16% as many forks as stars, VulnClaw 14%. Dify was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai), 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
| Dify | VulnClaw | |
|---|---|---|
| GitHub stars | ★ 156K | ★ 3.4K |
| License | Custom / other | MIT |
| Written in | TypeScript | Python |
| Last push | 2026-09-18 | 2026-09-17 |
| Forks | ⑂ 25K | ⑂ 457 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Dify if
- You weight community size — 156K stars and counting
- You want the Custom / other license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick VulnClaw if
- You want the VulnClaw feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and VulnClaw fits your workflow better
About Dify
Dify is an open source LLM application development platform built in TypeScript. It provides a visual interface for designing, testing, and deploying AI workflows, RAG pipelines, and agentic systems without writing extensive code. The platform lives in the generative AI development ecosystem and targets teams needing to move from prototype to production using consistent tooling across environments.
About VulnClaw
VulnClaw is an open source, MIT licensed AI penetration testing agent that takes natural language instructions and runs the whole information gathering, vulnerability discovery, exploitation and report generation loop on its own, built for authorised penetration testers, CTF competitors, security instructors and red teams.
read the full VulnClaw overview →
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Frequently asked questions
Is Dify or VulnClaw more popular?
Dify has 156,215 GitHub stars and VulnClaw has 3,363. Dify has the larger community by that measure.
Are Dify and VulnClaw free?
Both are open source. Dify has no licence declared in this registry, and VulnClaw is licensed under MIT. Both are free to self-host.
What is the difference between Dify and VulnClaw?
Dify is written in TypeScript and VulnClaw 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, Dify or VulnClaw?
Choose Dify if you want the larger community (156,215 stars) or its Custom / other licence terms. Choose VulnClaw if its feature set, stack or MIT licence fits better. Both are self-hostable.