Discover the most starred and trending open source tools tagged with #linter.
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.
An extremely fast Python linter and code formatter, written in Rust.
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.
🐘 Linter for Postgres migrations & SQL
A tool to enforce Swift style and conventions.
Rust-powered Svelte ecosystem
:pencil: A markup-aware linter for prose built with speed and extensibility in mind.
Static code analysis for Kotlin
An anti-bikeshedding Kotlin linter with built-in formatter
Find and fix problems in your JavaScript code.
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!
🔥 Fast, strict, configurable, extensible, and beautiful linter for Go
Code smell detector for Ruby
An Obsidian plugin that formats and styles your notes with a focus on configurability and extensibility.
Small Clojure interpreter, linter and formatter.
undercover warns about methods, classes and blocks that were changed without tests, to help you easily find untested code and reduce the number of bugs. It does so by analysing data from git diffs, code structure and SimpleCov coverage reports
SystemVerilog 2017 Pre-processor, Parser, Elaborator, UHDM Compiler. Provides IEEE Design/TB C/C++ VPI and Python AST & UHDM APIs. Compiles on Linux gcc, Windows msys2-gcc & msvc, OsX
Regal is a linter and language server for Rego, bringing your policy development experience to the next level!
A typescript-go toolchain, with evidence graph