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Best Opal Alternatives in 2026

12 platforms from code transpilers ranked against Opal on the same published basis.

  1. 1
    CoffeeScript apiLinuxMacWebWin 7.4
    Opal vs CoffeeScript
  2. 2
    Babel Free plan apiLinuxMacWebWin Free7.3
    Opal vs Babel
  3. 3
    SWC Free plan AndroidapiLinuxMacWeb Free7.3
    Opal vs SWC
  4. 4
    Transcrypt Free plan LinuxMacself-hostedWebWin Free6.0
    Opal vs Transcrypt
  5. 5
    ClojureScript Free plan LinuxMacself-hostedWebWin Free5.9
    Opal vs ClojureScript
  6. 6
    Cython Free plan LinuxMacWin Free5.9
    Opal vs Cython
  7. 7
    Dart pub LinuxMacWin 5.9
    Opal vs Dart pub
  8. 8
    Google Web Toolkit Free plan extensionLinuxMacWebWin Free5.9
    Opal vs Google Web Toolkit
  9. 9
    Kotlin/JS Free plan LinuxMacWebWin Free5.9
    Opal vs Kotlin/JS
  10. 10
    Vala Free plan LinuxMacWin Free5.9
    Opal vs Vala
  11. 11
    Haxelib LinuxMacWin 5.6
    Opal vs Haxelib
  12. 12
    J2ObjC MacLinux 5.6
    Opal vs J2ObjC
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