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AAFLplusplus
AFL++ is a state-of-the-art fuzzer, and #1 in benchmarks. It was originally based on AFL. Today it comes with qemu 5.1, collision-free coverage, enhanced laf-intel & redqueen, AFLfast++ power schedules, MOpt mutators, unicorn_mode, and a lot more!
Popularity
Repository stars6,850Highest6,386
7-day net stars——
Fork1,3351,468Highest
30-day trendInsufficient historyInsufficient history
Maintenance
Last push2026-10-302026-11-02
Maintenance notesNot verifiedNot verified
Repository created2019-05-282015-10-12
License & use
LicenseAGPL-3.0 · Share derivative sourceApache-2.0 · Permissive
PricingPricing not verifiedPricing not verified
Basics
Browse by purposeSoftware testingSoftware testing
TypeApps & systemsApps & systems
SubcategorySecurity toolsSecurity tools
PlatformNot verifiedNot verified
Cost detailsCheck current official software, hosting, model and infrastructure pricing.Check current official software, hosting, model and infrastructure pricing.
Pricing source——
First collected2026-11-032026-11-03
MetricRepository stars, not unique users or individual-skill installsRepository stars, not unique users or individual-skill installs
LanguageCGo
About this projectAFL++ is a state-of-the-art fuzzer, and #1 in benchmarks. It was originally based on AFL. Today it comes with qemu 5.1, collision-free coverage, enhanced laf-intel & redqueen, AFLfast++ power schedules, MOpt mutators, unicorn_mode, and a lot more!syzkaller is an unsupervised coverage-guided kernel fuzzer
Measured at2026-11-03 08:25 UTC2026-11-03 08:29 UTC
License tiers are derived from metadata. Check obligations for your use; unknown does not mean prohibited. Ranked by repository stars, one position per repository. Stars and forks are not user counts.