Tool

AFL++

AFL++ is a coverage-guided fuzzer forked from American Fuzzy Lop. The README names release 5.03c and GitHub version 5.04a. docker pull aflplusplus/aflplusplus provides an x86_64 and arm64 image, and docs/INSTALL.md is the recommended source build. Binary-only, network, and GUI targets have separate guides under docs/.

Targets: Binary
Category: Debugging and dynamic analysis
Relationship: Foundation tool
Sources reviewed: 2026-11-07

Stars: 6.9k
Last commit: 2026-10-19
Language: C
License (GitHub): AGPL-3.0

GitHub data as of 2026-11-09

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Requirements & limits

Follow docs/INSTALL.md, or use the aflplusplus/aflplusplus container.
License: GNU AGPL-3.0-or-later. Files compiled into a fuzzing harness stay Apache-2.0. Some files use the license in their SPDX header.

Cite

BibTeX

@misc{aflplusplus,
  title = {{AFL++}},
  howpublished = {\url{https://github.com/AFLplusplus/AFLplusplus}},
  url = {https://github.com/AFLplusplus/AFLplusplus},
  urldate = {2026-11-07},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/aflplusplus/}}
}

Plain text

AFL++. https://github.com/AFLplusplus/AFLplusplus (accessed 2026-11-07). Awesome REA entry: https://awesomerea.org/resources/aflplusplus/

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Primary sources

README.md GitHub · AFLplusplus/AFLplusplus · Revision d007072