Byebug Gem Version Build Status Code Climate Dependency Status

A Ruby 2.0 debugger.


Just type

$ gem install byebug

or if you use bundler, drop

gem 'byebug'

in your Gemfile


Wherever you want to start debugging, simply drop:


and the execution will stop and allow you to start debugging.


Everybody who has ever contributed to this forked and reforked piece of software, specially:

  • Kent Sibilev and Mark Moseley, original authors of ruby-debug.
  • Gabriel Horner, debugger's mantainer.
  • Koichi Sasada, author of the new C debugging API for Ruby.
  • Dennis Ushakov, author of debase, the starting point of this.