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Best ACL2 Alternatives in 2026

12 apps from formal verification tools ranked against ACL2 on the same published basis.

  1. 1
    Rocq Free plan extensionLinuxMacWebWin Free7.4
    ACL2 vs Rocq
  2. 2
    PVS Free plan LinuxMacWin Free7.3
    ACL2 vs PVS
  3. 3
    Z3 Free plan AndroidapiLinuxMacself-hosted Free7.3
    ACL2 vs Z3
  4. 4
    Isabelle Free plan LinuxMacself-hostedWin Free7.1
    ACL2 vs Isabelle
  5. 5
    SPIN Free plan LinuxMacWin Free7.1
    ACL2 vs SPIN
  6. 6
    UPPAAL Free plan LinuxMacWin Free7.1
    ACL2 vs UPPAAL
  7. 7
    Alloy Analyzer Free plan apiLinuxMacWin Free7.0
    ACL2 vs Alloy Analyzer
  8. 9
    Frama-C LinuxMacWin 6.6
    ACL2 vs Frama-C
  9. 10
    HOL Light WebWinMacLinux 6.1
    ACL2 vs HOL Light
  10. 11
    Lean WebWinMacLinux 6.1
    ACL2 vs Lean
  11. 12
    CBMC WinMacLinux 6.0
    ACL2 vs CBMC
  12. 13
    CPAchecker WinMacLinux 6.0
    ACL2 vs CPAchecker
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