I use Codeship [1] for personal (private) project and Travis CI [2] for open source ones. I had also use AppVeyor [3] for one of my Windows web app project. I

I use Codeship [1] for personal (private) project and Travis CI [2] for open source ones. I had also use AppVeyor [3] for one of my Windows web app project. I chose Codeship since it was the only one (at the time) that had BitBucket integration. The free tier (100 builds / mo) was more than enough for my side projects. In addition, it supports a lot of deployment targets (e.g. ElasticBeanstalk and Heroku). I use Travis CI for open source projects initially since it is what everyone uses :) However, one feature that I find really useful is the test matrix. I used it to test my project against different Java version and Cassandra distribution versions [4]. I use AppVeyor on one of my side project (which lies dormant now) since needing to test against both *nix and Windows build (a .NET / Mono web application). [1] - https://codeship.com/ https://codeship.com/ [2] - https://travis-ci.org/ https://travis-ci.org/ [3] - https://www.appveyor.com/ https://www.appveyor.com/ [4] - https://github.com/builtamont-oss/cassandra-migration https://github.com/builtamont-oss/cassandra-migration