59 Ruby Static Analysis Tools

Mega-Linter can handle any type of project thanks to its 70+ embedded Linters, its advanced reporting, runnable on any CI system or locally, with assisted installation and configuration, able to apply formatting and fixes

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.

A Ruby static code analyzer, based on the community Ruby style guide.

SonarQube is an open platform to manage code quality.

CodeScene is a quality visualization tool for software. Prioritize technical debt, detect delivery risks, and measure organizational aspects. Fully automated.

A static analysis security vulnerability scanner for Ruby on Rails applications.

Better Code Hub checks your GitHub codebase against 10 engineering guidelines devised by the authority in software quality, Software Improvement Group.

A fast, powerful type checker designed for Ruby.

In-depth static analysis to find issues in verticals of bug risks, security, anti-patterns, performance, documentation and style. Native integrations with GitHub, GitLab and Bitbucket. Less than 5% false positives.

Automated code review tool integrates with GitHub, Bitbucket and GitLab (even self-hosted). Available for JavaScript, TypeScript, Python, Ruby, Go, PHP, Java, Docker, and more. (open-source free)

Flay analyzes code for structural similarities.

Flog reports the most tortured code in an easy to read pain report. The higher the score, the more pain the code is in.

Code smell detector for Ruby.

An automated code reviewing tool. Improving developers' productivity.

Code Analysis to ship Better Code, Faster.

A commercial static analysis platform that supports the scanning of C/C++, C#, VB.NET, VB6, ABAP/BSP, ActionScript, Apex, ASP.NET, Classic ASP, VB Script, Cobol, ColdFusion, HTML, Java, JS, JSP, MXML/Flex, Objective-C, PHP, PL/SQL, T-SQL, Python (2.6, 2.7), Ruby (1.9.3), Swift, Scala, VB, and XML.

Code quality threshold checking as part of your build.

Automated code analysis tool to deal with technical depth. Integrates with Bitbucket and Gitlab. (free for Open Source Projects)

Automated Code Reviews and Technical Debt management platform that supports 12+ languages.

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

A Ruby code quality reporter.

A Simple and Comprehensive Vulnerability Scanner for Containers and other Artifacts, Suitable for CI. Trivy detects vulnerabilities of OS packages (Alpine, RHEL, CentOS, etc.) and application dependencies (Bundler, Composer, npm, yarn, etc.). Checks containers and filesystems.

Beautify HTML, CSS, JavaScript, PHP, Python, Ruby, Java, C, C++, C#, Objective-C, CoffeeScript, TypeScript, Coldfusion, SQL, and more in Atom editor.

Comments on style violations in GitHub pull requests. Supports Coffeescript, Go, HAML, JavaScript, Ruby, SCSS and Swift.

Ruby classes interactive dependency graph generator.

Reports known vulnerabilities in common dependencies and recommends updated packages to minimize breaking changes

Creates reports of over 400 rule patterns for feature detection (e.g. the use of cryptography or version control in apps).

Audit Gemfile.lock for gems with security vulnerabilities reported in [Ruby Advisory Database](https://github.com/rubysec/ruby-advisory-db).

Automated Code Analysis for repos on GitHub or BitBucket.

Lint your ERB or HTML files

Common Ruby idioms checker.

A tool for measuring code complexity in Ruby class files. Its analysis generates scores based on cyclomatic complexity algorithms with no added "opinions".

Grep rough audit - source code auditing tool.

Comment on commits coming into your repository and check for syntactic errors and general lint warnings.

A multi-language static analyzer for C/C++/Obj-C/Python/Ruby to create a graph (in dot or graphml format) which shows all `#include` relations of a given set of files.

Lizard is an extensible Cyclomatic Complexity Analyzer for many programming languages including C/C++ (doesn't require all the header files or Java imports). It also does copy-paste detection (code clone detection/code duplicate detection) and many other forms of static code analysis. Counts lines of code without comments, CCN (cyclomatic complexity number), token count of functions, parameter count of functions.

Static analysis Lint-type tool to improve your OO Ruby code.

Quick automated code review of your changes. Supports more than 40 runners for various languages, including Clang, Elixir, JavaScript, PHP, Ruby and more.

Runs quality checks on your code using community tools, and makes sure your numbers don't get any worse over time.

Pattern Based Checking Tool for Ruby.

An open source static analysis security vulnerability scanner for Ruby on Rails applications.

A code metric tool for Rails projects

An opinionated ruby formatter, intended to be used via the command line as a text-editor plugin, to autoformat files on save or on demand.

A Ruby cyclomatic complexity analyzer.

A proprietary code quality checker that can be integrated with GitHub.

Vulnerability scanner for dependencies of node.js apps (free for Open Source Projects).

Multi-language cloud-based static code analysis. History, trends, security hot-spots, pull request analysis and more. Free for open source.

Ruby Style Guide, with linter & automatic code fixer

Gradual Typing for Ruby.

Combination of multiple linters to install as a GitHub Action.

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

Static code analysis for binary and source code - Java/Scala, PHP, Javascript, C#, PL/SQL, Python, T-SQL, C/C++, ObjectiveC/Swift, Visual Basic 6.0, Ruby, Delphi, ABAP, HTML5 and Solidity.

Regex-based static analysis tool for Visual Studio, VS Code, and Sublime Text - C/C++, C#, PHP, ASP, Python, Ruby, Java, and others.

A commercial static analysis platform that allows for scanning of multiple languages (C/C++, Android, C#, Java, JS, PHP, Python, Node.JS, Ruby, Fortran, and Swift).

Scan is a free open-source DevSecOps platform for detecting security issues in source code and dependencies. It supports a broad range of languages and CI/CD pipelines.

Commercial Static Code Analysis which doesn't require pre-compilation.