Open source repositories tagged with #code-quality, ranked by health score.
SPEC-First Agentic Development Kit for Claude Code — 24 AI agents + 52 skills with TDD/DDD quality gates, 16-language projects, 4-language docs. Go CLI, zero deps.
Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. By default it supports the Google Java Style Guide and Sun Code Conventions, but is highly configurable. It can be invoked with an ANT task and a command line program.
SonarQube extension for Visual Studio providing code quality and security feedback directly in the IDE
🐶 Automated code review tool integrated with any code analysis tools regardless of programming language
Code coverage for Ruby with a powerful configuration library and automatic merging of coverage across test suites
A PHP code-quality tool
A tool to enforce Swift style and conventions.
Static code analysis for Kotlin
AI-powered architecture analysis and code intelligence. Detects circular deps, layer violations, dead modules, and more. Web UI + CLI.
A fast type checker and language server for Python
A set of Gradle plugins that configure default code quality tools for developers.
A CLI tool to check whether a specific composer package uses imported symbols that aren't part of its direct composer dependencies
AI-powered code analysis tool - instant bug detection, plain-English explanations, and improvement suggestions for Python, JS, TS, Java, C++. No account needed. GSSoC 2026.
