head to head · open source
crlfuzz vs cwe_checker
crlfuzz has 1,566 GitHub stars, 146 forks, 1 open issues and last shipped 26 days ago. cwe_checker has 1,360 stars, 143 forks, 30 open issues and last shipped 1 months ago. crlfuzz leads on adoption by 15% (1,566 vs 1,360 stars). crlfuzz is written in Go under MIT; cwe_checker is written in Rust under LGPL-3.0. crlfuzz has attracted 9% as many forks as stars, cwe_checker 11%. crlfuzz was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (vulnerability-scanner), 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
| crlfuzz | cwe_checker | |
|---|---|---|
| GitHub stars | ★ 1.6K | ★ 1.4K |
| License | MIT | LGPL-3.0 |
| Written in | Go | Rust |
| Last push | 2026-08-28 | 2026-08-20 |
| Forks | ⑂ 146 | ⑂ 143 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick crlfuzz if
- You weight community size — 1.6K stars and counting
- You want the MIT license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick cwe_checker if
- You want the cwe_checker feature set and don't need the biggest community
- You prefer the LGPL-3.0 license terms
- Your stack matches Rust
- You evaluated both and cwe_checker fits your workflow better
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 →
About cwe_checker
cwe checker is a suite of static analysis checks that scans ELF binaries for common bug classes — formally known as Common Weakness Enumerations (CWEs), such as null pointer dereferences and buffer overflows — and it is aimed at security analysts, reverse engineers, and firmware analysts who need to find potentially vulnerable code paths in compiled executables.
read the full cwe_checker overview →
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Frequently asked questions
Is crlfuzz or cwe_checker more popular?
crlfuzz has 1,566 GitHub stars and cwe_checker has 1,360. crlfuzz has the larger community by that measure.
Are crlfuzz and cwe_checker free?
Both are open source. crlfuzz is licensed under MIT and cwe_checker under LGPL-3.0. Neither carries a licence fee.
What is the difference between crlfuzz and cwe_checker?
crlfuzz is written in Go and cwe_checker in Rust. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, crlfuzz or cwe_checker?
Choose crlfuzz if you want the larger community (1,566 stars) or its MIT licence terms. Choose cwe_checker if its feature set, stack or LGPL-3.0 licence fits better. Both are self-hostable.