npm91Excellenthealth index
eslint/eslintFind and fix problems in your JavaScript code.
JavaScript★ 27.4K↓ 601M/moJul 22, 2026
PyPI91Excellenthealth index
pylint-dev/pylintIt's not just a linter that annoys you!
Python★ 5,702Jul 17, 2026
PyPI89Excellenthealth index
python/mypyOptional static typing for Python
Python · C★ 20.5K↓ 173M/moJul 16, 2026
RubyGems86Excellenthealth index
rubocop/rubocopA Ruby static code analyzer and formatter, based on the community Ruby style guide.
Ruby★ 12.9KJul 16, 2026
crates.io · npm83Goodhealth index
biomejs/biomeA toolchain for web projects, aimed to provide functionalities to maintain them. Biome offers formatter and linter, usable via CLI and LSP.
Rust★ 25.3KJul 17, 2026
crates.io · npm83Goodhealth index
oxc-project/oxc⚓ A collection of high-performance JavaScript tools.
Rust★ 22KJul 16, 2026
PyCQA/banditBandit is a tool designed to find common security issues in Python code.
Python★ 8,169Jul 17, 2026
Python★ 2,632↓ 84.9M/moJul 18, 2026
Go · npm81Goodhealth index
open-policy-agent/regalRegal is a linter and language server for Rego, bringing your policy development experience to the next level!
Go · Open Policy Agent★ 395Jul 20, 2026
sindresorhus/eslint-plugin-unicornMore than 300 powerful ESLint rules
JavaScript★ 5,192↓ 29.5M/moJul 17, 2026
Shopify/theme-toolsEverything developer experience for Shopify themes
TypeScript★ 219Jul 16, 2026
crates.io80Goodhealth index
codeclimate/codeclimate💎 Code quality CLI for universal linting, auto-formatting, security scanning, and maintainability
Rust★ 3,095Jul 15, 2026
Packagist80Goodhealth index
laravel/pintLaravel Pint is an opinionated PHP code style fixer for minimalists.
PHP★ 3,138↓ 7.2M/moJul 15, 2026
RubyGems80Goodhealth index
rubocop/rubocop-railsA RuboCop extension focused on enforcing Rails best practices and coding conventions.
Ruby★ 876Jul 21, 2026
PyPI · crates.io · npm80Goodhealth index
sqlfluff/sqlfluffA modular SQL linter and auto-formatter with support for multiple dialects and templated code.
Python · SQL · Rust★ 9,819Jul 21, 2026
npm · PyPI · crates.io79Goodhealth index
ast-grep/ast-grep⚡A CLI tool for code structural search, lint and rewriting. Written in Rust
Rust★ 15.1K↓ 5M/moJul 21, 2026
Python★ 2,632Jul 16, 2026
npm · Maven79Goodhealth index
validator/validatorThe Nu Html Checker (vnu)
Java★ 1,960↓ 460.6K/moJul 19, 2026
wundergraph/graphql-go-toolsGraphQL Router / API Gateway framework written in Golang, focussing on correctness, extensibility, and high-performance. Supports Federation v1 & v2, Subscriptions & more.
Go★ 827Jul 15, 2026
PyPI · crates.io · npm78Goodhealth index
astral-sh/ruffAn extremely fast Python linter and code formatter, written in Rust.
Rust★ 48.6KJul 15, 2026
prospector-dev/prospectorInspects Python source files and provides information about type and location of classes, methods etc
Python★ 2,087Jul 21, 2026
PyCQA/isortA Python utility / library to sort imports.
Python★ 6,953Jul 16, 2026
Packagist · crates.io · npm77Goodhealth index
carthage-software/magoMago is a toolchain for PHP that aims to provide a set of tools to help developers write better code.
Rust · PHP★ 3,314↓ 235.2K/moJul 15, 2026
coderaiser/putout🐊 Pluggable and configurable JavaScript Linter, code transformer and formatter with superpowers 💪: built-in support of js, jsx, ts, markdown, yaml, toml, json and ignore. Write declarative codemods in a simplest possible way 😏
JavaScript★ 796↓ 446.3K/moJul 21, 2026
crates.io77Goodhealth index
qltysh/qlty💎 Code quality CLI for universal linting, auto-formatting, security scanning, and maintainability
Rust★ 3,098↓ 123/moJul 19, 2026
crates.io · npm76Goodhealth index
fallow-rs/fallowCodebase 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.
Rust★ 4,122Jul 17, 2026
flowr-analysis/flowrSophisticated static program analysis framework for the R programming language.
TypeScript · JavaScript★ 98↓ 4,758/moJul 18, 2026
RubyGems76Goodhealth index
rubocop-hq/rubocop-railsA RuboCop extension focused on enforcing Rails best practices and coding conventions.
Ruby★ 876Jul 16, 2026
crates.io · PyPI76Goodhealth index
rvben/rumdlFast Markdown linter and formatter written in Rust
Rust★ 1,327↓ 3,020/moJul 13, 2026
PyPI · crates.io · npm76Goodhealth index
tombi-toml/tombiTOML Formatter / Linter / Language Server
Rust★ 1,042↓ 352.6K/moJul 21, 2026