head to head · open source
Anthropic-Cybersecurity-Skills vs WhatWeb
Anthropic-Cybersecurity-Skills has 33,341 GitHub stars, 4,050 forks, 48 open issues and last shipped 25 days ago. WhatWeb has 6,855 stars, 1,013 forks, 51 open issues and last shipped 6 months ago. Anthropic-Cybersecurity-Skills leads on adoption by 386% (33,341 vs 6,855 stars). Anthropic-Cybersecurity-Skills is written in Python under Apache-2.0; WhatWeb is written in Ruby under GPL-2.0. Anthropic-Cybersecurity-Skills has attracted 12% as many forks as stars, WhatWeb 15%. Anthropic-Cybersecurity-Skills was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| Anthropic-Cybersecurity-Skills | WhatWeb | |
|---|---|---|
| GitHub stars | ★ 33K | ★ 6.9K |
| License | Apache-2.0 | GPL-2.0 |
| Written in | Python | Ruby |
| Last push | 2026-08-31 | 2026-04-02 |
| Forks | ⑂ 4.0K | ⑂ 1.0K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Anthropic-Cybersecurity-Skills if
- You weight community size — 33K 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 WhatWeb if
- You want the WhatWeb feature set and don't need the biggest community
- You prefer the GPL-2.0 license terms
- Your stack matches Ruby
- You evaluated both and WhatWeb fits your workflow better
About Anthropic-Cybersecurity-Skills
Anthropic Cybersecurity Skills is an Apache 2.0 Python library of 817 structured cybersecurity skills that gives AI agents the working knowledge of a senior security analyst, aimed at security teams, DevSecOps engineers, and red or blue teams that already run agents such as Claude Code, GitHub Copilot, Codex CLI, Cursor, or Gemini CLI.
read the full Anthropic-Cybersecurity-Skills overview →
About WhatWeb
WhatWeb is a free, GPL 2.0 licensed web scanner written in Ruby that identifies the technologies powering a website — content management systems, blogging platforms, analytics packages, JavaScript libraries, web servers and embedded devices — and it is built for penetration testers, security analysts and network defenders who need to answer the question, "What is that Website?"
read the full WhatWeb overview →
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Frequently asked questions
Is Anthropic-Cybersecurity-Skills or WhatWeb more popular?
Anthropic-Cybersecurity-Skills has 33,341 GitHub stars and WhatWeb has 6,855. Anthropic-Cybersecurity-Skills has the larger community by that measure.
Are Anthropic-Cybersecurity-Skills and WhatWeb free?
Both are open source. Anthropic-Cybersecurity-Skills is licensed under Apache-2.0 and WhatWeb under GPL-2.0. Neither carries a licence fee.
What is the difference between Anthropic-Cybersecurity-Skills and WhatWeb?
Anthropic-Cybersecurity-Skills is written in Python and WhatWeb in Ruby. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Anthropic-Cybersecurity-Skills or WhatWeb?
Choose Anthropic-Cybersecurity-Skills if you want the larger community (33,341 stars) or its Apache-2.0 licence terms. Choose WhatWeb if its feature set, stack or GPL-2.0 licence fits better. Both are self-hostable.