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Best Cosmic Ray Alternatives in 2026

12 apps from mutation testing tools ranked against Cosmic Ray on the same published basis.

  1. 1
    ArcMutate Free plan LinuxMacself-hostedWin $8/mo6.4
    Cosmic Ray vs ArcMutate
  2. 2
    Mutant Free plan LinuxMac $20.83/mo6.4
    Cosmic Ray vs Mutant
  3. 3
    Mutatest Free plan LinuxMacWin Free6.3
    Cosmic Ray vs Mutatest
  4. 4
    Stryker Mutator Free plan apiself-hosted Free6.3
    Cosmic Ray vs Stryker Mutator
  5. 5
    Infection LinuxMacWeb 5.9
    Cosmic Ray vs Infection
  6. 7
    Dextool Mutate Linuxself-hosted 5.8
    Cosmic Ray vs Dextool Mutate
  7. 8
    muttest LinuxMacWin 5.8
    Cosmic Ray vs muttest
  8. 9
    PIT LinuxMacself-hostedWin 5.8
    Cosmic Ray vs PIT
  9. 10
    cargo-mutants 5.4
    Cosmic Ray vs cargo-mutants
  10. 11
    mutator 5.4
    Cosmic Ray vs mutator
  11. 12
    Mutineer 5.4
    Cosmic Ray vs Mutineer
  12. 13
    pytest-gremlins 5.4
    Cosmic Ray vs pytest-gremlins
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