Csmith vs OSS-Fuzz
| Csmith | OSS-Fuzz | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | Free | Free |
| Open source | No | No |
| Platforms | Linux, Windows | Web |
| Free plan | Yes | Yes |
| Input generation methods | generation | mutation |
| Target types | C programs; C++ programs; compilers | source-code fuzz targets; untrusted user or network inputs; complex input formats |
| Execution mode | local | cloud |
| Supported languages | C; C++ | C/C++, Rust, Go, Python, Java/JVM, JavaScript, Lua |
| CI/CD support | Yes | Yes |
| Coverage guidance | — | Yes |
| Crash triage | — | Yes |
Both are listed in Best Fuzz Testing Software. On Samsung Mobile US Press, OSS-Fuzz scores higher on our published basis.