DeepSource

DeepSource automatically reviews your code for bug risks, anti-patterns, performance issues and security vulnerabilities, and reports them in the pull request. With DeepSource Autofix, we automatically fix some of the issues detected as well.

It takes a couple of minutes to set up with your GitHub or GitLab account, and supports Python, Go, and Ruby. JavaScript is coming soon.

DeepSource is free to use for open source as well as 3 private repositories up to 3 team members.