head to head · open source
SkillSpector vs vuln-bank
SkillSpector has 17,667 GitHub stars, 1,512 forks, 136 open issues and last shipped yesterday. vuln-bank has 933 stars, 340 forks, 10 open issues and last shipped 7 days ago. SkillSpector leads on adoption by 1,794% (17,667 vs 933 stars). SkillSpector is written in Python under Apache-2.0; vuln-bank is written in HTML under MIT. SkillSpector has attracted 9% as many forks as stars, vuln-bank 36%. SkillSpector 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
| SkillSpector | vuln-bank | |
|---|---|---|
| GitHub stars | ★ 18K | ★ 933 |
| License | Apache-2.0 | MIT |
| Written in | Python | HTML |
| Last push | 2026-09-17 | 2026-09-11 |
| Forks | ⑂ 1.5K | ⑂ 340 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick SkillSpector if
- You weight community size — 18K 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 vuln-bank if
- You want the vuln-bank feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches HTML
- You evaluated both and vuln-bank fits your workflow better
About SkillSpector
SkillSpector is an open source security scanner for AI agent skills that detects vulnerabilities, malicious patterns, prompt injection, data exfiltration, and supply chain risk in Claude Code, Codex CLI, Gemini CLI, and MCP skills before they are installed — built for developers who install agent skills and for security teams that vet or publish them.
read the full SkillSpector overview →
About vuln-bank
vuln bank is a deliberately vulnerable banking application — MIT licensed, primarily written in HTML, with 933 stars and 341 forks — built so security engineers, developers, interns, QA analysts and DevSecOps practitioners can practise web, API and LLM application security testing, secure code review and CI/CD security automation in an isolated environment.
read the full vuln-bank overview →
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Frequently asked questions
Is SkillSpector or vuln-bank more popular?
SkillSpector has 17,667 GitHub stars and vuln-bank has 933. SkillSpector has the larger community by that measure.
Are SkillSpector and vuln-bank free?
Both are open source. SkillSpector is licensed under Apache-2.0 and vuln-bank under MIT. Neither carries a licence fee.
What is the difference between SkillSpector and vuln-bank?
SkillSpector is written in Python and vuln-bank in HTML. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, SkillSpector or vuln-bank?
Choose SkillSpector if you want the larger community (17,667 stars) or its Apache-2.0 licence terms. Choose vuln-bank if its feature set, stack or MIT licence fits better. Both are self-hostable.