JSPM

An AST-based pattern checker for JavaScript.

AST utility module for statically analyzing JSX

Lint files staged by git

Minify URLs by converting them from absolute to relative.

ESLint plugin to follow best practices and anticipate common mistakes when writing tests with Testing Library

Biome is a toolchain for the web: formatter, linter and more

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

Find and fix unused dependencies, exports and files in your TypeScript and JavaScript projects

More than 300 powerful ESLint rules

A collection of SCSS-specific rules for Stylelint

Default linter plugin for oas-validator

Validate JSON

Convert Swagger 2.0 definitions to OpenApi 3.0 and validate

A ESLint plugin for webpack

A collection of order related linting rules for Stylelint.

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

JavaScript Standard Style - ESLint Shareable Config

A library of useful functions used across various cspell tools.

AST utility module for statically analyzing JSX

ESLint plugin for JSON, JSONC and JSON5 files.

A Spelling Checker for Code!

This ESLint plugin provides linting rules for YAML.

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

Lint browser compatibility of API used

The official ESLint language plugin for Markdown

Lint CSS for browser support against caniuse database

ESLint rule to disallow unsanitized code

Lint packaging errors

Turns off all rules that are unnecessary or might conflict with Prettier.

Pretty formatter for ESLint

Dynamic accessibility analysis for React using axe-core

A simple, zero dependency tool for setting up git hooks for small projects

JavaScript Standard Style JSX support - ESLint Shareable Config

Offline HTML5 validator and linter

Wrap your standards in a tortilla and cover it in special sauce.

A collection of stylistic/formatting Stylelint rules

This plugin makes 'no-unused-expressions' rule friendly towards chai expect statements.

Linting for Angular applications, following angular.io/styleguide.

unified plugin to make it a bit easier to create linting rules

JavaScript Standard Style

ESLint shareable config for XO

ESLint shareable config for the Google style

Configurable linter for package.json files.

Specify properties for which a variable, function, keyword or value must be used

Lint an npm or yarn lockfile to analyze and detect issues

Sharable stylelint config based on https://sass-guidelin.es/

A stylelint processor for styled-components

This ESLint plugin provides linting rules for TOML.

Codebase intelligence for TypeScript and JavaScript. Free static analysis of code and styles, optional paid runtime intelligence (Fallow Runtime). Quality, risk, architecture, dependencies, duplication, and design-system drift for humans, CI, and the agen

Do you wanna use tslint and prettier without conflicts? tslint-config-prettier disables all conflicting rules that may cause such problems. Prettier takes care of formatting and tslint the rest.

remark plugin to lint Markdown code style

A CLI to lint a lockfile for security policies

A simple (CLI) tool to lint YAML files

Validate JSON

remark-lint rule to warn when the markers of ordered lists violate a given style

remark-lint rule to warn when code blocks do not adhere to a given style

JavaScript/TypeScript linter (ESLint wrapper) with great defaults

A ESLint plugin for Rspack

remark-lint rule to warn when too many spaces are used to create a hard break

An eslint rule that searches for potential secrets/keys in code

Parser for @html-eslint/eslint-plugin

remark-lint rule to warn when block quotes have blank lines without markers

Turns off all SCSS rules that are unnecessary or might conflict with Prettier.

ESLint plugin for HTML

remark-lint rule to warn when references to undefined definitions are found

ESLint’s official `compact` formatter, unofficially published as a standalone module

remark-lint rule to check the spacing between list item bullets and content

remark-lint rule to warn on duplicate definitions

The Static Code Analysis Tool for your HTML

remark-lint rule to warn when shortcut reference images are used

Tools to validate package.json files.

remark-lint rule to warn when URLs without angle brackets are used

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

remark-lint rule to warn when list item bullets are indented

remark-lint rule to warn when shortcut reference links are used

ESLint rules for RxJS

remark-lint rule to warn when a newline at the end of a file is missing

remark-lint rule to warn when unused definitions are found

A BEM linter for postcss

remark-lint rule to check whitespace after block quote markers

remark-lint rule to warn when heading content is indented

A Stylelint plugin for webpack

remark-lint rule to warn when heading style violates the given style

Static scope analysis and transpilation of ES6 block scoped const and let variables, to ES3.

remark-lint rule to warn when horizontal rules violate a given style

remark-lint rule to warn when fenced code markers violate the given style

remark-lint rule to warn when table cells are incorrectly padded

remark-lint rule to warn when the content of a list item has mixed indentation

remark-lint rule to warn when link and definition titles occur with incorrect quotes

remark-lint rule to warn when emphasis markers violate the given style

remark-lint rule to warn when importance (strong) markers violate the given style

An opinionated Stylelint config used by Bootstrap across our projects.

Linter for Ember or Handlebars templates.

Disallow property values that are ignored due to another property value in the same rule.

ESLint’s official `junit` formatter, unofficially published as a standalone module

The pluggable linting tool for natural language.

Improve your TSLint with the missing ESLint Rules

ESLint rules using Regular Expression

remark-lint rule to check list item checkbox characters

remark-lint rule to check the marker value of ordered lists

remark-lint rule to warn when multiple top level headings are used

remark-lint rule to warn when headings increment with more than 1 level at a time

remark-lint rule to warn when definitions are not placed at the end of the file

textlint output formatter for fixer

remark-lint rule to warn when markers of unordered lists violate a given style

Provides the Nu Html Checker «vnu.jar» file

A TypeScript ESLint config that loves you

Validate files with ESLint

remark-lint rule to warn when table rows are not fenced with pipes

remark-lint rule to warn when tables are indented

ESLint’s official `codeframe` formatter, extracted from ESLint 7

A gulp plugin for processing files with ESLint

remark-lint rule to warn when emphasis or importance is used instead of a heading

An eslint rule that checks the top of files and --fix them too!

The JavaScript Code Quality Tool

A JSON fixer

remark-lint rule to warn when headings end in illegal characters

remark-lint rule to warn when fenced code blocks occur without language flag

Stylish reporter for JSHint

Default stylelint configuration used by Prestashop

An ESLint plugin that enforces the use of import aliases. Also supports autofixing.

Tiny tool to run commands for modified, staged, and committed git files.

Eslint rules for nestjs projects

remark-lint rule to warn when file names contain consecutive dashes

remark-lint rule to warn when file name start with an article

remark-lint rule to warn when file names contain irregular characters

remark-lint rule to warn when file names contain initial or final dashes

The stylistic shareable config for Stylelint.

remark-lint rule to warn when consecutive whitespace is used in a definition

ESLint’s official `stylish` formatter, unofficially published as a standalone module

remark-lint rule to warn for too many consecutive blank lines

Speed up eslint to accelerate your development workflow

ESLint plugin for enforcing newlines in ES6 import statements past a certain number of items

remark-lint rule to warn when shell code is prefixed by dollars

remark-lint rule to warn on duplicate headings

remark-lint rule to warn when lines are too long

remark-lint rule to warn when headings are too long

remark-lint rule to warn when file names use mixed case

remark-lint rule to warn when the file’s extension violates the given style

JavaScript Standard Style React/JSX support - ESLint Shareable Config

remark-lint rule to warn when table pipes are not aligned

All Node Sass linter!

remark-lint rule to warn when definition labels are not lowercase

ESLint’s official `unix` formatter, unofficially published as a standalone module

remark-lint rule to warn when list looseness is incorrect

JavaScript Semistandard Style - ESLint Shareable Config

More general-purpose ESLint rules

Minimal ESLint formatter (reporter) that displays only one summary line.

The type tracer for ESLint rules.

JSON/CJSON/JSON5 parser, syntax and schema validator and pretty-printer.

ESLint shareable config for React to be used with eslint-config-xo

A pretty Stylelint formatter.

Additional rules to enforce constistent code style with tslint

remark-lint rule to warn on empty URLs in links and images

remark-lint rule to warn when too much whitespace follows list item checkboxes

Validate JSON

ESLint rules for RxJS and Angular

A Stylelint plugin to enforce the use of logical CSS properties, values and units.

Monorepo utility tools

Linter for SVGs

Core HTML validation logic for html-eslint

remark-lint rule to warn when headings are indented

remark-lint rule to warn when hard tabs are used instead of spaces

Various utilities for token types

ESLint’s official `table` formatter, extracted from ESLint 7

Lint CSS for email support against caniemail database.

--- title: inlang CLI - Localization Automation for CI/CD description: Automate translation workflows with machine translation, validation, and CI/CD integration. Supports JSON, i18next, next-intl, and more. og:image: https://cdn.jsdelivr.net/gh/opral/inl

Efficient Git Commit Message Linting and Formatting

Common eslint rules/preferences for Ionic.

Design skills, commands, and anti-pattern detection for AI coding agents

remark-lint rule to warn when URLs are also defined identifiers

remark-lint rule to for too many hashes (h7+ “headings”)

remark-lint rule to warn on duplicate headings in a section

remark-lint rule to warn when the content in paragraphs are indented

ESLint’s official `json` formatter, unofficially published as a standalone module

remark-lint rule to check that full reference images can be collapsed

ESLint’s official `checkstyle` formatter, unofficially published as a standalone module

A Prettier shareable config for projects using 'Prettier' and 'JavaScript Standard Style' as ESLint rules or separate processes.

Modern ESLint plugin for RxJS

Fast, zero-dependency spell checker for code. Built with Bun.

Create a sub-traversal of an AST node in your ESLint plugin

CSS Property Sort Order based on the SMACSS methodology

Parser/validator for the Design Tokens Community Group (DTCG) standard.

remark-lint rule to check that full reference links can be collapsed

Stylelint plugin for Stylus

Simple Checkstyle data formatter

Formats GraphQL schema definition language (SDL) document.

Operate on AST for 🐊 Putout

Validate Markdown frontmatter YAML against an associated JSON schema — remark-lint rule plugin

TypeScript linter Gulp plugin

Stylelint rule for preventing the use of low performance animation and transition properties.

🐊 Pluggable and configurable code transformer with built-in ESLint, Babel and support of js, jsx, typescript, flow, markdown, yaml and json

remark-lint rule to warn when linebreaks violate a given or detected style

Lint — The universal linter with AI-powered code review.

Enforce consistent and maintainable TODO comments

ESLint plugin to enforce canonical Tailwind CSS class names using Tailwind CSS v4's canonicalization API

Validate JSON

TypeScript Standard Style based on StandardJS

ESlint plugin to define custom module dependency rules.

remark-lint rule to warn when URLs are dead

Keep a watchful eye on your css colors

TSLint rule for RxJS

The CLI for working with JSON Schema. Covers formatting, linting, testing, and much more for both local development and CI/CD pipelines. By a member of the JSON Schema Technical Steering Committee

remark-lint rule to warn when the first heading has a level other than a specified value

ESLint and Prettier Config from Wes Bos

Detailed HTML reporter for ESLINT.

Eslint plugin for markdownlint

Be scalable! Update is a new, open source developer framework and CLI for automating updates of any kind in code projects.

Lint, format and auto-fix your Groovy / Jenkinsfile / Gradle files

A markdownlint rule that allows only extended ASCII characters

Use eslint in the browser

remark-lint rule to warn when HTML nodes are used

Lint your CoffeeScript

code > prettier > stylelint > formatted code

textlint plugin to lint MDX

ESLint’s official `visualstudio` formatter, unofficially published as a standalone module

Disables ESLint rules that have a recommended and equivalent Biome rule

An unopinionated and configurable linter and style checker for Pug (formerly Jade)

ESLint plugin containing hapi style guide rules and config

CKEditor 5 ESLint preset.

Eslint plugin for enforcing newlines in object destructuring assignment past a certain number of properties.

GitLab Stylelint base configuration

remark-lint rule to warn when missing blank lines

Default npm-package-json-lint shareable config

Verify entry point and all imported files with ESLint

Run linting rules on your database schema. Read the intro to this idea in [this blog post](https://medium.com/@kristiandupont/database-schema-linting-5e83b18dc99a).

Eslint config following open-wc recommendations

Gherkin features linter written in Typescript

Verifies that installed modules comply with the requirements specified in package.json

An unofficial html5 linter.

ESLint v9+ rules for RxJS and Angular

CKEditor 5 ESLint preset.

broccoli filter that runs eslint

A gulp plugin to lint code with ESLint 8, 9 and 10.

Convention spec for konsistent — Zod schemas and authoring helpers for reusable conventions.

HTML and CSS Feature Support for Email Clients from caniemail.com

custom ESLint rule to disallows calling postMessage to wildcard targets

The linting tool for the web

All the goodness of `feross/standard` with semicolons sprinkled on top.

Lint CSS files

konsistent is a CLI tool that enforces structural conventions in TypeScript codebases.

webhint's recommended hints configuration for live websites

Utilities for formatting and linting a Dockerfile.

Oxlint configurations ported from popular ESLint styleguides

Gulp plugin for Sass Lint

An ESLint plugin for linting inline scripts in Pug files

Run linters on committed files in a Branch🔬

Node wrapper for clang-format native binary inspired by angular/clang-format.🐉

Converts your TSLint configuration to the closest reasonable ESLint equivalent.

Shared types and utilities for Sanity Lint