AFL++
7.2#1 in privacy policy generator softwareFrom €20,000 a yearFree planAndroidLinuxmacOSSelf-hosted
VisitAFL++ vs Csmith
What both publish
| Fact | AFL++ | Csmith |
|---|---|---|
| Purpose | AFL++ is a coverage-guided fuzzer that mutates input and checks whether it reaches a new path in the target binary. | Csmith generates random C programs to find compiler bugs using differential testing. |
| Support | The maintainers direct users to GitHub issues for AFL++ defects, the FAQ and best practices, and the Fuzzing Zulip server. | The project directs users to GitHub issues for bug reports and suggestions and provides a mailing list for discussion. |
AFL++ plans
- AGPL-3.0-or-laterFree
- Commercial license€20,000 a year
Csmith plans
- CsmithFree
Pick AFL++ if…
AFL++ is for developers and security practitioners fuzzing source-available software, binary-only targets, network services, or GUI programs. Users should be comfortable with its AGPL obligations or the separately listed commercial license.
Pick Csmith if…
Csmith is suited to compiler developers or testers who need generated C programs for differential testing or test suites. It also fits users comfortable building and running command-line tools locally.