Discover the most starred and trending open source tools tagged with #quality.
Codebase intelligence for TypeScript and JavaScript. Free static analysis of code and styles: unused code, duplication, circular deps, complexity hotspots, architecture boundaries, design-system drift. Optional paid runtime layer (Fallow Runtime): hot-path review and cold-path deletion evidence from real production traffic.
Static analysis for the debt AI agents leave in PHP: 25 rules, Claude Code hooks, git-diff review, a Rector and Pint fix pass, Pest expectations, CI annotations and an MCP server. Deterministic, local, no LLM.
Configuration Management Platform for Radarr/Sonarr
Coverage, security and code quality for coding agents
A fast type checker and language server for Python
Continuous Inspection
Refine high-quality datasets and visual AI models
A tool to enforce Swift style and conventions.
Open-source AI penetration testing tool to find and fix your app’s vulnerabilities.
Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.
Static code analysis for Kotlin
Codebase intelligence for AI and humans: code health scores, auto-generated docs, git analytics, dead code detection, and architectural decisions via MCP.
Copy/paste detector for source code. 220+ languages, Rust engine, SARIF/HTML/badge reporters, GitHub Action, MCP server for AI agents.
It's not just a linter that annoys you!
Code coverage for Ruby with a powerful configuration library and automatic merging of coverage across test suites
A PHP code-quality tool
Code smell detector for Ruby
⚙️ The static code analysis tool you need for your HTML
A powerful C# Roslyn analyzer that uses static analysis to detect bugs, surface security issues, and enforce best practices—helping developers and AI write more reliable code.
PHP_Depend is an adaptation of the established Java development tool JDepend. This tool shows you the quality of your design in terms of extensibility, reusability and maintainability.