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Best Csmith Alternatives in 2026

12 apps from fuzz testing software ranked against Csmith on the same published basis.

  1. 1
    AFL++ Free plan AndroidLinuxMacself-hostedWin €1666.67/mo9.4
    Csmith vs AFL++
  2. 2
    Mayhem Free plan apiLinuxMacself-hostedWeb $236/mo8.2
    Csmith vs Mayhem
  3. 3
    OSS-Fuzz Free plan Web Free8.1
    Csmith vs OSS-Fuzz
  4. 4
    ClusterFuzz Free plan LinuxMacself-hostedWebWin Free8.1
    Csmith vs ClusterFuzz
  5. 5
    Honggfuzz AndroidLinuxMacWin 7.7
    Csmith vs Honggfuzz
  6. 6
    Jazzer Free plan LinuxMacWin Free7.4
    Csmith vs Jazzer
  7. 7
    Fuzzilli Free plan LinuxMacself-hosted Free7.1
    Csmith vs Fuzzilli
  8. 8
    Schemathesis Free plan LinuxMacself-hostedWin Free6.8
    Csmith vs Schemathesis
  9. 9
    FuzzForge Web 6.6
    Csmith vs FuzzForge
  10. 10
    EvoMaster WinMacLinux 6.5
    Csmith vs EvoMaster
  11. 11
    cargo-fuzz Free plan LinuxMacWin Free6.5
    Csmith vs cargo-fuzz
  12. 12
    EvoMaster WinMacLinux 6.4
    Csmith vs EvoMaster
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