Mayhem vs AFL++

Mayhem9.4Visit AAFL++8.7Visit

Higher score Mayhem #1 in Fuzz Testing Software 9.4/10 Pricing on request · 30-day trial Free trial✓ 3 of 3 features Visit Mayhem

vs

A AFL++ #4 in Fuzz Testing Software 8.7/10 Free plan Free plan✓ 3 of 3 features Visit AFL++

• Mayhem fits best

  Teams needing broad managed fuzz testing

• AFL++ fits best

  General-purpose native and binary fuzzing

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Side by side

Feature	Mayhem 9.4/10 Visit ↗	AAFL++ 8.7/10 Visit ↗
At a glance
Editor score	9.4	8.7
Ranking	#1 in Fuzz Testing Software	#4 in Fuzz Testing Software
Best for	Teams needing broad managed fuzz testing	General-purpose native and binary fuzzing
Pricing model	Paid	Free
Starting price	Pricing on request · 30-day trial	Free plan
Free plan	Not checked yet	✓ (best)
Free trial	30 days	—
Deployment	Cloud, Self-hosted	Self-hosted
Platforms	Web, Windows, macOS, Linux	Linux, macOS, Android, Windows
Support	Docs	Community, Docs
Built for	Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features Mayhem 3/3 · AFL++ 3/3
Coverage guidance	✓	✓
Crash triage	✓	✓
CI/CD support	✓	✓
Specs
Input generation methods	hybrid	mutation
Target types	Linux binaries; Windows PE binaries; TCP/UDP applications; REST APIs; gRPC APIs; containers; automotive vECUs	source-code targets, binary-only targets, file inputs, stdin inputs, Android native libraries, Win32 PE binaries
Execution mode	Hybrid	Local
Supported languages	C/C++; Python; Go; Rust; Java	C, C++, Python, Rust
Our review
Pros	Combines coverage-guided fuzzing with symbolic execution and hybrid targets Automates crash triage with proof-of-vulnerability reproduction commands Supports CI workflows, regression testing, and broad target coverage	Supports source and binary-only fuzzing across four platforms Combines persistent execution, custom mutators, and parallel fuzzing Includes crash triage, minimization, dictionaries, and CI support
Cons	Pricing requires contacting sales Broad functionality may exceed the needs of narrowly focused teams Configuration and workflow design may require security expertise	Local execution puts setup and operations on the user Its primary focus is native programs and selected binary targets Mutation-based input generation may not suit every testing strategy
Our verdict	Mayhem is an AI-driven application security testing platform for development and security teams. It is designed for organizations that need continuous fuzz testing across software, APIs, binaries, containers, connected systems, and… Read the review →	AFL++ is an open-source, coverage-guided fuzzer for developers and security researchers testing programs and libraries. It targets file-processing programs, command-line tools, native libraries, and selected binary targets. Supported… Read the review →

Strengths and trade-offs

• Mayhem — where it wins

  • Combines coverage-guided fuzzing with symbolic execution and hybrid targets
  • Automates crash triage with proof-of-vulnerability reproduction commands
  • Supports CI workflows, regression testing, and broad target coverage

  Where it doesn't

  • Pricing requires contacting sales
  • Broad functionality may exceed the needs of narrowly focused teams
  • Configuration and workflow design may require security expertise

• AFL++ — where it wins

  • Supports source and binary-only fuzzing across four platforms
  • Combines persistent execution, custom mutators, and parallel fuzzing
  • Includes crash triage, minimization, dictionaries, and CI support

  Where it doesn't

  • Local execution puts setup and operations on the user
  • Its primary focus is native programs and selected binary targets
  • Mutation-based input generation may not suit every testing strategy

• Mayhem9.4/10 · Pricing on request · 30-day trial

  Mayhem brings broad hybrid fuzz testing, triage, and regression coverage to CI workflows.

  Visit MayhemFull verdict →
• AAFL++8.7/10 · Free plan

  A broad, free fuzzer for native code, binaries, libraries, and file-processing tools.

  Visit AFL++Full verdict →