4 Rails Static Analysis Tools

A fast, open-source, static analysis tool for finding bugs and enforcing code standards at editor, commit, and CI time. Its rules look like the code you already write; no abstract syntax trees or regex wrestling. Supports 17+ languages.

Synopsys Coverity supports 20 languages and over 70 frameworks including Ruby on rails, Scala, PHP, Python, JavaScript, TypeScript, Java, Fortran, C, C++, C#, VB.NET.

A static analysis security scanner for ruby written web applications. It supports Sinatra, Padrino and Ruby on Rails frameworks.

Code review tool with dependency diagrams. Improve your team's code reviews with better navigation and code analysis