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Best OpenJML Alternatives in 2026

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

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