head to head · open source
PentestGPT vs crlfuzz
PentestGPT has 15,569 GitHub stars, 2,714 forks, 81 open issues and last shipped 2 months ago. crlfuzz has 1,566 stars, 146 forks, 1 open issues and last shipped 26 days ago. PentestGPT leads on adoption by 894% (15,569 vs 1,566 stars). PentestGPT is written in Python under MIT; crlfuzz is written in Go under MIT. PentestGPT has attracted 17% as many forks as stars, crlfuzz 9%. crlfuzz 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
| PentestGPT | crlfuzz | |
|---|---|---|
| GitHub stars | ★ 16K | ★ 1.6K |
| License | MIT | MIT |
| Written in | Python | Go |
| Last push | 2026-07-14 | 2026-08-28 |
| Forks | ⑂ 2.7K | ⑂ 146 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick PentestGPT if
- You weight community size — 16K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick crlfuzz if
- You want the crlfuzz feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and crlfuzz fits your workflow better
About PentestGPT
PentestGPT is an MIT licensed Python framework that uses large language models to run automated penetration tests and CTF challenges, aimed at penetration testers, security engineers and CTF players who want an agent to drive the tooling rather than working through it by hand.
read the full PentestGPT overview →
About crlfuzz
CRLFuzz is a fast, MIT licensed command line tool written in Go that scans web targets for CRLF injection vulnerabilities, aimed at penetration testers, bug bounty hunters, and security engineers who need to check either a single URL or a long list of them quickly.
read the full crlfuzz overview →
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Frequently asked questions
Is PentestGPT or crlfuzz more popular?
PentestGPT has 15,569 GitHub stars and crlfuzz has 1,566. PentestGPT has the larger community by that measure.
Are PentestGPT and crlfuzz free?
Both are open source. PentestGPT is licensed under MIT and crlfuzz under MIT. Neither carries a licence fee.
What is the difference between PentestGPT and crlfuzz?
PentestGPT is written in Python and crlfuzz in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, PentestGPT or crlfuzz?
Choose PentestGPT if you want the larger community (15,569 stars) or its MIT licence terms. Choose crlfuzz if its feature set, stack or MIT licence fits better. Both are self-hostable.