head to head · open source
rengine vs crlfuzz
rengine has 8,856 GitHub stars, 1,344 forks, 164 open issues and last shipped 2 days ago. crlfuzz has 1,566 stars, 146 forks, 1 open issues and last shipped 26 days ago. rengine leads on adoption by 466% (8,856 vs 1,566 stars). rengine is written in HTML under GPL-3.0; crlfuzz is written in Go under MIT. rengine has attracted 15% as many forks as stars, crlfuzz 9%. rengine 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
| rengine | crlfuzz | |
|---|---|---|
| GitHub stars | ★ 8.9K | ★ 1.6K |
| License | GPL-3.0 | MIT |
| Written in | HTML | Go |
| Last push | 2026-09-21 | 2026-08-28 |
| Forks | ⑂ 1.3K | ⑂ 146 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick rengine if
- You weight community size — 8.9K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches HTML
- 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 rengine
reNgine is an open source automated reconnaissance framework for web applications, built for penetration testers, bug bounty hunters and corporate security teams who need a configurable, repeatable recon process with the results correlated and stored in one place.
read the full rengine 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 rengine or crlfuzz more popular?
rengine has 8,856 GitHub stars and crlfuzz has 1,566. rengine has the larger community by that measure.
Are rengine and crlfuzz free?
Both are open source. rengine is licensed under GPL-3.0 and crlfuzz under MIT. Neither carries a licence fee.
What is the difference between rengine and crlfuzz?
rengine is written in HTML 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, rengine or crlfuzz?
Choose rengine if you want the larger community (8,856 stars) or its GPL-3.0 licence terms. Choose crlfuzz if its feature set, stack or MIT licence fits better. Both are self-hostable.