Lint GitHub Repositories (2026) · Open Source Tools

✂️ Find unused files, dependencies and exports in your JavaScript and TypeScript projects. Knip it before you ship it!

An anti-bikeshedding Kotlin linter with built-in formatter

🐶 Automated code review tool integrated with any code analysis tools regardless of programming language

textlint is the pluggable linter for natural language text.

Static code analysis for Kotlin

A Node.js style checker and lint tool for Markdown/CommonMark files.

A bunch of lints to catch common mistakes and improve your Rust code. Book: https://doc.rust-lang.org/clippy/

A pluggable linter and fixer to enforce Protocol Buffer style and conventions.

A mighty CSS linter that helps you avoid errors and enforce conventions.

Extremely fast tool to remove duplicates and other lint from your filesystem

A Gradle plugin to apply ktfmt to your builds, and reformat you Kotlin source code like a glimpse 🧹🐘

vacuum is the worlds fastest and most versatile OpenAPI, Arazzo, AsyncAPI & JSON Schema linter, docs generator and toolkit. It tears through API specs at light speed. 100% compatible with Spectral rulesets, and OpenAPI 3.0, 3.1 and 3.2

A fast, flexible, configuration-based command-line interface for linting Markdown/CommonMark files with the markdownlint library

Code style checking for RSpec files.

A tool to verify that your files are in harmony with your .editorconfig

A sample Kotlin app which was built with modular structure, Kotlin DSL, Kotlin Coroutines, TDD and MVVM patterns.

Lint checks to aid with a healthy adoption of Compose

Deterministic textlint rules and CLI for catching prose slop in English Markdown.

Lint, search, and install Agent Skills (SKILL.md) — CLI + MCP server + lint engine

Tool to check for problems with Arduino projects