There is a free open source alternative written in Python: https://github.com/justinabrahms/imhotep https://github.com/justinabrahms/imhotep It runs on the com

There is a free open source alternative written in Python: https://github.com/justinabrahms/imhotep https://github.com/justinabrahms/imhotep It runs on the commit diff with a specified linting tool (used it with pep8 and jshint), it is also fairly easy to add new linters. Here's a fork that works nicely with Travis: https://github.com/glowdigitalmedia/imhotep https://github.com/glowdigitalmedia/imhotep