TurboWarp is a scratch compiler[1] that can run at 100 the speed of scratch. [2] It works in JS. [3] It claims to be really fast. [4]

  1. ^ https://turbowarp.org/
  2. ^ "How TurboWarp runs Scratch projects 10-100x faster | TurboWarp Documentation".
  3. ^ https://turbowarp.org/
  4. ^ https://turbowarp.org/