Code Quality & Static Analysis Repositories

javascript

by airbnb

Total Stargazers:148207

Total Subscribers:3662

JavaScript Style Guide

prettier

by prettier

Total Stargazers:52251

Total Subscribers:450

Prettier is an opinionated code formatter.

ruff

by astral-sh

Total Stargazers:49609

Total Subscribers:130

An extremely fast Python linter and code formatter, written in Rust.

black

by psf

Total Stargazers:41842

Total Subscribers:227

The uncompromising Python code formatter

shellcheck

by koalaman

Total Stargazers:40031

Total Subscribers:408

ShellCheck, a static analysis tool for shell scripts

eslint

by eslint

Total Stargazers:27498

Total Subscribers:343

Find and fix problems in your JavaScript code.

YouCompleteMe

by ycm-core

Total Stargazers:25891

Total Subscribers:545

A code-completion engine for Vim

difftastic

by Wilfred

Total Stargazers:25886

Total Subscribers:66

a structural diff that understands syntax 🟥🟩

biome

by biomejs

Total Stargazers:25764

Total Subscribers:92

A toolchain for web projects, aimed to provide functionalities to maintain them. Biome offers formatter and linter, usable via CLI and LSP.

highlight.js

by highlightjs

Total Stargazers:24993

Total Subscribers:296

JavaScript syntax highlighter with language auto-detection and zero dependencies.

cloc

by AlDanial

Total Stargazers:23520

Total Subscribers:213

cloc counts blank lines, comment lines, and physical lines of source code in many programming languages.

open-code-review

by alibaba

Total Stargazers:22652

Total Subscribers:67

Fast, efficient, battle-tested at Alibaba's scale. Hybrid architecture code review tool: deterministic pipelines + LLM Agent, precise line-level comments, built-in multi-language ruleset (NPE, thread-safety, XSS, SQL injection), OpenAI & Anthropic compatible.

flow

by facebook

Total Stargazers:22285

Total Subscribers:381

Adds static typing to JavaScript to improve developer productivity and code quality.

roslyn

by dotnet

Total Stargazers:20656

Total Subscribers:986

The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.

mypy

by python

Total Stargazers:20638

Total Subscribers:234

Optional static typing for Python

SwiftLint

by realm

Total Stargazers:19725

Total Subscribers:235

A tool to enforce Swift style and conventions.

ty

by astral-sh

Total Stargazers:19673

Total Subscribers:55

An extremely fast Python type checker and language server, written in Rust.

golangci-lint

by golangci

Total Stargazers:19369

Total Subscribers:108

Fast linters runner for Go

You-Dont-Need-Lodash-Underscore

by you-dont-need

Total Stargazers:19133

Total Subscribers:198

List of JavaScript methods which you can use natively + ESLint Plugin

commitlint

by conventional-changelog

Total Stargazers:18733

Total Subscribers:67

📓 Lint commit messages

keploy

by keploy

Total Stargazers:18454

Total Subscribers:50

Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.

guide

by uber-go

Total Stargazers:17701

Total Subscribers:227

The Uber Go Style Guide.

PHP-Parser

by nikic

Total Stargazers:17467

Total Subscribers:215

A PHP parser written in PHP

semgrep

by semgrep

Total Stargazers:16602

Total Subscribers:117

Lightweight static analysis for many languages. Find bug variants with patterns that look like source code.

ruby-style-guide

by rubocop

Total Stargazers:16545

Total Subscribers:494

A community-driven Ruby coding style guide

typescript-eslint

by typescript-eslint

Total Stargazers:16387

Total Subscribers:93

:sparkles: Monorepo for all the tooling which enables ESLint to support TypeScript

javascript-obfuscator

by javascript-obfuscator

Total Stargazers:16250

Total Subscribers:188

A powerful obfuscator for JavaScript and Node.js

ast-grep

by ast-grep

Total Stargazers:15873

Total Subscribers:45

⚡A CLI tool for code structural search, lint and rewriting. Written in Rust

infer

by facebook

Total Stargazers:15706

Total Subscribers:587

A static analyzer for Java, C, C++, and Objective-C

pyright

by microsoft

Total Stargazers:15636

Total Subscribers:130

Static Type Checker for Python

pre-commit

by pre-commit

Total Stargazers:15567

Total Subscribers:96

A framework for managing and maintaining multi-language pre-commit hooks.

tokei

by XAMPPRocky

Total Stargazers:14907

Total Subscribers:47

Count your code, quickly.

react-doctor

by millionco

Total Stargazers:14833

Total Subscribers:26

Your agent writes bad React. This catches it

static-analysis

by analysis-tools-dev

Total Stargazers:14781

Total Subscribers:309

⚙️ A curated list of static analysis (SAST) tools and linters for all programming languages, config files, build tools, and more. The focus is on tools which improve code quality.

lint-staged

by lint-staged

Total Stargazers:14730

Total Subscribers:39

🚫💩 — Run tasks like formatters and linters against staged git files

pretty-ts-errors

by yoavbls

Total Stargazers:14103

Total Subscribers:23

🔵 Make TypeScript errors prettier and human-readable in VSCode 🎀

phpstan

by phpstan

Total Stargazers:14101

Total Subscribers:157

PHP Static Analysis Tool - discover bugs in your code without running it!

ale

by dense-analysis

Total Stargazers:14014

Total Subscribers:86

Check syntax in Vim/Neovim asynchronously and fix files, with Language Server Protocol (LSP) support

yapf

by google

Total Stargazers:13985

Total Subscribers:197

A formatter for Python files

linguist

by github-linguist

Total Stargazers:13686

Total Subscribers:593

Language Savant. If your repository's language is being reported incorrectly, send us a pull request!

PHP-CS-Fixer

by PHP-CS-Fixer

Total Stargazers:13551

Total Subscribers:199

A tool to automatically fix PHP Coding Standards issues

rust-clippy

by rust-lang

Total Stargazers:13503

Total Subscribers:77

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

You-Dont-Need-Momentjs

by you-dont-need

Total Stargazers:13290

Total Subscribers:135

List of functions which you can use to replace moment.js + ESLint Plugin

whoops

by filp

Total Stargazers:13233

Total Subscribers:186

PHP errors for cool kids

rubocop

by rubocop

Total Stargazers:12901

Total Subscribers:170

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

cognitive-load

by zakirullin

Total Stargazers:12503

Total Subscribers:102

🧠 Cognitive load is what matters

hadolint

by hadolint

Total Stargazers:12399

Total Subscribers:69

Dockerfile linter, validate inline bash, written in Haskell

knip

by webpro-nl

Total Stargazers:12248

Total Subscribers:16

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

stylelint

by stylelint

Total Stargazers:11518

Total Subscribers:90

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

sonarqube

by SonarSource

Total Stargazers:10976

Total Subscribers:340

Continuous Inspection

super-linter

by super-linter

Total Stargazers:10585

Total Subscribers:295

Combination of multiple linters to run as a GitHub Action or standalone

rector

by rectorphp

Total Stargazers:10418

Total Subscribers:89

Instant Upgrades and Automated Refactoring of any PHP 5.3+ code

madge

by pahen

Total Stargazers:10160

Total Subscribers:49

Create graphs from your CommonJS, AMD or ES6 module dependencies

codeql

by github

Total Stargazers:10082

Total Subscribers:287

CodeQL: the libraries and queries that power security researchers around the world, as well as code scanning in GitHub Advanced Security

jscodeshift

by facebook

Total Stargazers:10040

Total Subscribers:91

A JavaScript codemod toolkit.

sqlfluff

by sqlfluff

Total Stargazers:9872

Total Subscribers:41

A modular SQL linter and auto-formatter with support for multiple dialects and templated code.

bundlephobia

by pastelsky

Total Stargazers:9585

Total Subscribers:32

🏋️ Find out the cost of adding a new frontend dependency to your project

reviewdog

by reviewdog

Total Stargazers:9580

Total Subscribers:64

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

checkstyle

by checkstyle

Total Stargazers:9570

Total Subscribers:225

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.

Code Quality & Static Analysis

Linters, formatters, static analysis, code review and refactoring tools.

javascript

by airbnb

JavaScript Style Guide

prettier

by prettier

Prettier is an opinionated code formatter.

ruff

by astral-sh

An extremely fast Python linter and code formatter, written in Rust.

black

by psf

The uncompromising Python code formatter

shellcheck

by koalaman

ShellCheck, a static analysis tool for shell scripts

eslint

by eslint

Find and fix problems in your JavaScript code.

YouCompleteMe

by ycm-core

A code-completion engine for Vim

difftastic

by Wilfred

a structural diff that understands syntax 🟥🟩

biome

by biomejs

A toolchain for web projects, aimed to provide functionalities to maintain them. Biome offers formatter and linter, usable via CLI and LSP.

highlight.js

by highlightjs

JavaScript syntax highlighter with language auto-detection and zero dependencies.

cloc

by AlDanial

cloc counts blank lines, comment lines, and physical lines of source code in many programming languages.

open-code-review

by alibaba

Fast, efficient, battle-tested at Alibaba's scale. Hybrid architecture code review tool: deterministic pipelines + LLM Agent, precise line-level comments, built-in multi-language ruleset (NPE, thread-safety, XSS, SQL injection), OpenAI & Anthropic compatible.

flow

by facebook

Adds static typing to JavaScript to improve developer productivity and code quality.

roslyn

by dotnet

The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.

mypy

by python

Optional static typing for Python

SwiftLint

by realm

A tool to enforce Swift style and conventions.

ty

by astral-sh

An extremely fast Python type checker and language server, written in Rust.

golangci-lint

by golangci

Fast linters runner for Go

You-Dont-Need-Lodash-Underscore

by you-dont-need

List of JavaScript methods which you can use natively + ESLint Plugin

commitlint

by conventional-changelog

📓 Lint commit messages

keploy

by keploy

Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.

guide

by uber-go

The Uber Go Style Guide.

PHP-Parser

by nikic

A PHP parser written in PHP

semgrep

by semgrep

Lightweight static analysis for many languages. Find bug variants with patterns that look like source code.

ruby-style-guide

by rubocop

A community-driven Ruby coding style guide

typescript-eslint

by typescript-eslint

:sparkles: Monorepo for all the tooling which enables ESLint to support TypeScript