* [scrutinizer-ci.com](https://scrutinizer-ci.com/) — Continuous inspection platform, free for Open Source
* [codecov.io](https://codecov.io/) — Code coverage tool (SaaS), free for Open Source
* [insight.sensiolabs.com](https://insight.sensiolabs.com/) — Code Quality for PHP/Symfony projects, free for Open Source
* [codacy.com](https://codacy.com/) — Automated code reviews for PHP, Python, JavaScript, Scala and CSS, free for Open Source
* [codacy.com](https://codacy.com/) — Automated code reviews for PHP, Python, Ruby, Java, JavaScript, Scala, CSS and CoffeeScript, free for Open Source
* [pullreview.com](https://www.pullreview.com/) — Automated Code Review for Ruby in GitHub, Bitbucket and GitLab, free for Open Source
* [gocover.io](http://gocover.io/) — Code coverage for any [Go](https://golang.org/) package
* [goreportcard.com/](http://goreportcard.com/) — Code Quality for Go projects, free for Open Source