head to head · open source
pentagi vs WhatWeb
pentagi has 33,728 GitHub stars, 5,277 forks, 71 open issues and last shipped 19 days ago. WhatWeb has 6,995 stars, 1,020 forks, 51 open issues and last shipped 7 months ago. pentagi leads on adoption by 382% (33,728 vs 6,995 stars). pentagi is written in Go under MIT; WhatWeb is written in Ruby under GPL-2.0. pentagi has attracted 16% as many forks as stars, WhatWeb 15%. pentagi was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (penetration-testing), 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
| pentagi | WhatWeb | |
|---|---|---|
| GitHub stars | ★ 34K | ★ 7.0K |
| License | MIT | GPL-2.0 |
| Written in | Go | Ruby |
| Last push | 2026-10-22 | 2026-04-02 |
| Forks | ⑂ 5.3K | ⑂ 1.0K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick pentagi if
- You weight community size — 34K stars and counting
- You want the MIT license terms
- Your stack matches Go
- 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 pentagi
PentAGI P enetration testing A rtificial G eneral I ntelligence Join the Community! Connect with security researchers, AI enthusiasts, and fellow ethical hackers. Get support, share insights, and stay updated with the latest PentAGI developments. ⠀ Table of Contents Overview Features Architecture Agent Supervision Quick Start Agent Docker Access Running Several Instances How to Use PentAGI After Login API Access LLM Provider Configuration Ollama OpenAI Anthropic Google AI (Gemini) AWS Bedrock DeepSeek GLM Kimi Qwen MiniMax Advanced Setup Langfuse Integration Monitoring and Observability Knowledge Graph…
read the full pentagi overview →
About WhatWeb
WhatWeb Next generation web scanner Developed by Andrew Horton urbanadventurer and Brendan Coles bcoles Latest Release: v0.6.4. April 3, 2026 License: GPLv2 This product is subject to the terms detailed in the license agreement. For more information about WhatWeb visit Wiki: If you have any questions, comments or concerns regarding WhatWeb, please consult the documentation prior to contacting one of the developers. Your feedback is always welcome. Contents About WhatWeb Example Usage Usage Logging & Output Plugins Aggression Performance & Stability Optional Dependencies Writing Plugins Updates & Additional…
read the full WhatWeb overview →
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Frequently asked questions
Is pentagi or WhatWeb more popular?
pentagi has 33,728 GitHub stars and WhatWeb has 6,995. pentagi has the larger community by that measure.
Are pentagi and WhatWeb free?
Both are open source. pentagi is licensed under MIT and WhatWeb under GPL-2.0. Neither carries a licence fee.
What is the difference between pentagi and WhatWeb?
pentagi is written in Go 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, pentagi or WhatWeb?
Choose pentagi if you want the larger community (33,728 stars) or its MIT licence terms. Choose WhatWeb if its feature set, stack or GPL-2.0 licence fits better. Both are self-hostable.