Reason Debugger
Switch branches/tags
Nothing to show
Clone or download
Latest commit 71f8618 Jul 18, 2017


Better UX for OCamlDebug. Works with Ocaml and Reason code.

Watch Video


  1. Zero config, just prepend your command with red
  2. Time traveling (can step back in time)
  3. Printing arbitrary values and structs
  4. Adding and removing breakpoints
  5. More to come. See TODO file


  1. Make sure your build target is byte-code, not native:

     ocamlbuild myapp.d.byte
  2. Clone the repo and run RED:

     git clone
     ./red/ /path/to/myapp.d.byte
  3. Press ? to see available options