ESLint

repo: dustinspecker/awesome-eslint
category: Programming Languages

Awesome ESLint

<img src="https://eslint.org/icon.svg" width="160" align="right" alt="eslint">

A list of awesome ESLint configs, plugins, etc.

If you want to contribute, please read the contribution guidelines.

Contents

• Configs
  • Configs by Well-Known Companies/Organizations
  • Other Prominent Configs (100 stars or so)
  • Other Configs
• Preconfigured Configs with ESLint Set up
• Plugins
  • Code Quality
  • Compatibility
  • CSS in JS
  • Deprecation
  • Embedded
  • Frameworks
  • Languages and Environments
  • Libraries
  • Misc
  • Practices and Specific ES Features
  • Performance
  • Security
  • Style
  • Testing Tools
• Parsers
• Formatters
• Globals
• Tools
• Developing for ESLint
• Tutorials
• Installation and Setup

Configs

Configs by Well-Known Companies/Organizations

• Airbnb - Shareable config for Airbnb's style guide.
• Airbnb-babel - Airbnb's ESLint config with Babel Support.
• Alloy - Progressive ESLint config for your React/Vue/TypeScript projects.
• ESLint - Contains the ESLint configuration used for projects maintained by the ESLint team.
• Facebook - Sharable config for Facebook's style guide.
• Feedzai - Feedzai's shareable config for JavaScript/React projects.
• Shopify - Shareable config for Shopify's style guide.
• Wikimedia - Shareable config for Wikimedia's style guide, used by MediaWiki.

Other Prominent Configs (100 stars or so)

• Auto - Automatically configure ESLint based on your project's dependencies.

• Canonical - Shareable config for Canonical style guide.

• Standard - Shareable config for JavaScript Standard Style.

• XO - Shareable config for XO.

• Antfu Eslint Config - Anthony's ESLint config preset.

Other Configs

• Adjunct - A reasonable collection of plugins to use alongside your main ESLint configuration.
• Ash-Nazg - One config to rule them all!
• Cecilia - ESLint configuration for awesome projects.
• clean-typescript - Enforce classic JavaScript featuress in TypeScript codebase by banning excessive keywords.
• Hardcore - The most strict (but practical) ESLint config out there.
• Problems - Shareable config that only catches actual problems, and doesn't enforce stylistic preferences.
• Supermind - Shareable config for Supermind style.
• Sheriff - Comprehensive and highly opinionated Eslint configuration. Typescript oriented.

Preconfigured Configs with ESLint Set up

• Node.js Standard Style - Node.js core config.
• eslint-config-prettier - Prettier config for ESlint maintained by Prettier team.
• Standard - JavaScript Standard Style.
• Superlint - JavaScript Supermind Style.
• XO - JavaScript happiness style linter ❤️.

Plugins

Code Quality

• depend - Helps detect dependency tree bloat and redundant polyfills.
• GitHub - Misc. rules from GitHub.
• SonarJS - Rules detecting bugs and suspicious patterns.
• Unicorn - Various awesome ESLint rules.
• @mysticatea/eslint-plugin - Misc. rules.
• @brettz9/eslint-plugin - Misc. rules. of @mysticatea without the personal config.
• De Morgan - Transforms logical expressions in code to make them easier to understand.
• eslint-plugin-code-complete - A custom ESLint plugin that enforces principles of clean, maintainable software design — inspired by Code Complete.

Compatibility

• Compat - Lint browser compatibility of APIs used (caniuse as an ESLint plugin).
• ecmascript-compat - Disable ECMAScript language features not supported by your browserslist targets.
• es-x - Disable specific ECMAScript language versions or individual features. Properly maintained fork of no longer maintained eslint-plugin-es.
• es5 - ESLint plugin for ES5 users (forbid ES2015+ usage).
• ie11 - Detect unsupported ES6 features in IE11.

CSS in JS

• CSS-modules - Lint undefined or unused rules for css modules.
• Emotion - ESLint rules for emotion.
• Styled Components
  • Better Styled Components - Auto fixable ESlint's rules for styled components.
  • styled-components-a11y - A11y for Styled Components.
• vanilla-extract - An ESLint plugin for enforcing CSS property ordering in vanilla-extract CSS styles.

Deprecation

• deprecate - Mark functions or modules as deprecated and get lint messages when they are used.
• disable - Disable specified plugins using file path patterns and inline comments.

Embedded

• HTML - Linting for JavaScript inside of HTML <script> tags.
• Markdown - Linting for JavaScript inside of Markdown.

Frameworks

• Angular - Linting rules for Angular (v2+).
• AngularJS - Linting rules to adhere to the John Papa's AngularJS Styleguide.
• Astro - Plugin for Astro components.
• Backbone - Linting rules for Backbone.
• Ember - Linting rules for Ember.
• Hapi - Linting rules for hapi.
• Meteor - Meteor specific linting rules for ESLint.
• React
  • JSX a11y - Accessibility rules on JSX elements.
  • React - Linting rules for React and JSX.
  • React Hooks - Linting rules for React Hooks.
  • React Native - React Native specific linting rules.
  • React-Redux - React-Redux specific linting rules.
  • React Refresh - Improve HMR experience when using Vite.
• Solid - Linting rules for Solid and JSX.
• Svelte - Linting rules for Svelte v3 Components.
• Vue
  • VueJS - Plugin for VueJS.
  • VueJS Scoped CSS - Plugin for Scoped CSS in VueJS.

Languages and Environments

• Babel - Adds replacements for built-in rules to include Babel features.
• eslint-plugin-eslint-plugin - An ESLint plugin for linting ESLint plugins.
• Flow
  • Flow - Flow type linting rules.
  • Flow Errors - Run Flow as an ESLint plugin.
• HTML - ESLint plugin for HTML.
• JSON
  • JSON - Lint your JSON files.
  • JSON, package.json - Lint, format, and auto-fix your JSON files. Sort your package.json.
  • JSON with Comments - ESLint plugin for JSON, JSONC and JSON5.
  • JSON Schema - Validates data defined in JavaScript, JSON, YAML and TOML using JSON Schema Validator.
  • eslint-plugin-package-json - Rules for consistent, readable, and valid package.json files.
• MDX - ESLint Parser/Plugin for MDX.
• N - Additional ESLint's rules for Node.js. Properly maintained fork of no longer maintained eslint-plugin-node.
• SQL - SQL linting rules for ESLint.
• TOML - ESLint plugin for TOML.
• TypeScript - Linting rules for TypeScript.
  • eslint-plugin-erasable-syntax-only - Granularly enforces TypeScript's erasableSyntaxOnly flag.
  • eslint-plugin-expect-type - Provides Twoslash, ExpectError, andExpectType type assertions.
• YAML - ESLint plugin for YAML.

Libraries

• GraphQL
  • dotansimha/graphql-eslint - Validates, prettifies and checks your GraphQL operations and GraphQL schema for best-practices.
  • apollostack/eslint-plugin-graphql - Check your GraphQL query strings against a schema.
• TypeGraphQL - Linting rules for TypeGraphQL, targeted at finding common mistakes.
• jQuery - Linting rules for jQuery, including versioned configs for deprecated features.
• JSDoc - Linting rules for JSDoc comments (including the JavaScript within @example).
• Lodash
  • Lodash - Lodash specific linting rules.
  • Lodash/fp - Lodash/fp specific linting rules.
  • Lodash template - Plugin for Lodash template/Underscore template.
  • Microtemplates (Used in Lodash and Underscore.js)
• Mongodb - Mongodb native Node.js driver linting rules.
• Ramda - Ramda specific linting rules.
• RequireJS - Linting rules for RequireJS.
• Tailwind CSS - Linting rules for Tailwind CSS classnames.
• Tailwind CSS v4 - ESLint plugin to help you write better tailwindcss by improving readability with formatting rules and enforcing best practices with linting rules.

Misc

• Diff - Run ESLint on your changed lines only. Also supports CI!
• Misc - Miscellaneous rules including rules for creating custom checks and wrapping (modifying) third-party rules.
• Notice - An eslint rule that checks the top of files and fixes them too!
• Only-Error - Convert all rules to errors.
• Only-Warn - Convert all rules to warnings.
• PutOut - an ESLint plugin integrates putout linter into ESLint.
• TypeLint - Introduces types, based on existing schemas (Swagger, Redux) and linting access to object properties, preventing undefined errors.
• Woke - Helps catch insensitive words, promoting an inclusive codebase.

Practices and Specific ES Features

• array-func - Avoid redundancy when using es2015 array methods and functions.

• arrow functions - ESLint rules to ensure proper arrow function definitions.

• boundaries - Ensures that your architecture boundaries are respected by the elements in your project checking file structure and dependencies.

• @eslint-community/eslint-plugin-eslint-comments - Best practices about ESLint directive comments (/*eslint-disable*/, etc.). Properly maintained fork of no longer maintained eslint-plugin-eslint-comments.

• eslint-plugin-error-cause - A plugin to preserve original error context when re-throwing exceptions.

• eslint-plugin-hexagonal-architecture - A plugin that helps you to enforce hexagonal architecture best practices.

• eslint-plugin-signature-design - Forbids functions with too many parameters of the same type, encouraging object-based signatures and preventing primitive obsession.

• eslint-plugin-write-good-comments - Enforce good writing style in comments.

• eslint-plugin-exception-handling - Lints unhandled functions that might throw errors.

• fp - ESLint rules for functional programming.

• functional - ESLint rules to disable mutation and promote fp in JavaScript and TypeScript.

• mutate - Prevent accidental parameter mutations by enforcing explicit mut prefix (JavaScript) or Mut<T> type annotation (TypeScript).

• Immutable - Disable all mutation in JavaScript.

• import - Linting of ES2015+ import/export syntax, and prevent issues with misspelling of file paths and import names.

• import-x - Linting of ES2015+ import/export syntax, and prevent issues with misspelling of file paths and import names. Lightweight fork of eslint-plugin-import, but which breaks backwards compatibility.

• Math - ESLint plugin related to Math object and Number.

• new-with-error - Require errors to be thrown using new.

• no-argument-spread - Lints against expressions like [Math](/@harrisonqian/awesome/wiki/theory/math).max(...args) that can lead to a stack overflow for large arrays.

• no-comments - Prevents leaking comments into production if bundler is not used and stops developers from commenting out old lines of code.

• no-constructor-bind - Encourages use of class properties by reporting use of this with bind or setting state in constructors.

• no-inferred-method-name - Custom rule for ESLint that checks for inferred method names within object literals.

• no-loops - It's 2019 and you still use loops?

• no-restricted-syntax - Show queried syntax's content in messages.

• no-use-extend-native - Prevent using extended native objects.

• Promise - Best practices when working with promises.

• pure - Enforce pure functions (without side effects).

• ReDoS - ESLint plugin for finding possible ReDoS vulnerabilities.

• ReDoSDetector - ESLint plugin for finding possible ReDoS vulnerabilities.

• RegExp - ESLint plugin for finding regexp mistakes and style guide violations.

• sort-keys-fix - Adds fixer for ESLint sort-keys rule.

• this - Write pure functions, don't allow this.

• toplevel - An eslint plugin for disallow side effect at module toplevel.

Performance

• DOM
• Optimize Regex - Optimize regex literals.
• Perf-Standard plugin and Config

Security

• no-secrets - An eslint plugin that detects potential secrets/credentials.
• no-unsanitized - Checks for innerHTML, outerHTML, etc.
• pii - Checks and enforces PII Compliance of the code. i.e. no email address, birth date, IP address or phone number in comments or string literals.
• pg - PostgreSQL/node-postgres security: SQL injection prevention (CWE-89), connection pool leak detection (CWE-772), transaction safety. 13 rules with CWE mapping.
• Security - ESLint rules for Node Security.
• xss - Tries to detect XSS issues in codebase before they end up in production.

Style

• ESLint Stylistic - [Formatting and stylistic ESLint core rules moved to this project and are maintained by the community.](https://eslint.org/blog/2023/10/deprecating-formatting-rules/)
• const case - Enforce capitalization of constant primitive literals.
• editorconfig - Derive rules from .editorconfig.
• filenames - Ensure consistent filenames for your JavaScript files. No longer maintained and does not work with ESlint 9 at all.
• Simple import sort - Easy autofixable import sorting.
• perfectionist sorting - Sort objects, imports, TypeScript types, enums, JSX props, etc.
• split-and-sort-imports - Sorts imports and splits 'multiple' imports into single line imports.
• Switch case - Switch-case-specific linting rules for ESLint.
• padding - Allows/disallows padding between statements.
• paths - Use paths from tsconfig/jsconfig and auto fix relative paths to aliases.
• @gitbutler/no-relative-imports - Use paths from tsconfig and auto fix relative paths to aliases. Observes tsconfig inheritance.

Testing Tools

• AVA - Linting rules for AVA.
• Chai

  • expect practices

  • with unused expressions

  • permitted keywords

  • with chai-as-promised plugin

  • globals

• Cucumber - Linting rules for Cucumber.
• Cypress - Linting rules for Cypress.
• Jasmine - Linting rules for Jasmine.
• Jest
  • Enforcing practices - Linting rules for Jest.
  • Enforcing consistent formatting - Formatting rules for Jest.
  • Jest-async - Async linting rule for Jest.
  • Jest-DOM - Linting rules for Jest-DOM.
• Mocha
  • Enforcing practices - Linting rules for Mocha.
  • Enforcing manageability
• Playwright - Linting rules for Playwright.
• QUnit - Linting rules for QUnit.
• TestCafe-Community - TestCafe linting rules with env globals (fork from TestCafe globals).
• Testing Library - Linting rules for Testing Library.

Parsers

• babel-eslint-parser - Allows you to lint ALL valid Babel code with the fantastic ESLint.
• TypeScript - A TypeScript parser that produces output compatible with ESLint.
• BrightScript - BrightScript plugin for Roku development. Includes Parser and Rules.
• GraphQL - Parser for the GraphQL AST. Includes parser, plugin, processor (for non-graphql files) and rules.

Formatters

• html - A enhanced ESLint formatter.
• badger - Make SVG-based badges summarizing ESLint results (e.g., for use on a README).
• git-log - ESLint Formatter featuring Git Author, Date, and Hash.
• github - See ESLint errors and warnings directly in pull requests.
• gitlab - Output ESLint results in the GitLab code quality results.
• mo - Good-lookin' ESLint formatter and also for delightful reading experience.
• SARIF - Generate a results in a SARIF format so it can be imported into tools like GitHub Advanced Security.
• summary-chart - Format ESLint output into a bar chart.

Globals

• confusing-browser-globals - A curated list of browser globals that commonly cause confusion and are not recommended to use without an explicit window. qualifier.
• ES and browser globals (originally from ESLint)
• chai globals
• TestCafe globals - fixture & test globals for TestCafe.

Tools

• es-file-traverse - Obtain a list of only those files which are in use based on imports and/or requires from an entry file or files; list passable to ESLint. Intended esp. for linting 3rd party dependencies.
• eslint-find-rules - Find built-in ESLint rules you don't have in your custom config.
• eslint-index - CLI for finding and managing rules in ESLint config files.
• eslint-interactive - The CLI tool to fix huge number of ESLint errors.
• eslint-multiplexer - Multiplex eslint results and merge results for common files.
• eslint-nibble - Ease into ESLint, by fixing one rule at a time.
• eslint-plugin-rule-adoption - An eslint plugin for incremental rule adoption, when --fix and codemods don't cut it.
• eslint-rule-documentation - Find the url for the documentation of an ESLint rule.
• eslint-watch - Run ESLint with watch mode.
• codacy-eslint - Docker used at Codacy to run ESLint.
• esprint - Run ESLint across multiple threads.
• generator-eslint - Generate ESLint plugin and rules with Yeoman.
• editor-info - Detect whether one is within an editor/IDE and which type, allowing one to tweak ESLint configuration accordingly.
• eslint-dashboard - Interactive ESLint workflow that lives in your terminal.
• eslint-remote-tester - CLI tool for testing given ESlint rules against multiple repositories at once.
• eslint-disable-autofix - Utility to disable autofix for specific ESLint rules.

Developing for ESLint

• eslint-doc-generator - Generate documentation for your ESLint plugin including a rules table for your readme and header for your rule docs.
• eslint-docgen - Automatically generate ESLint plugin documentation from rule metadata and test cases.

Tutorials

• Creating an ESLint Plugin - Article walking through the creation of an ESLint rule and plugin.
• Lint Like It's 2015 - Article walking through the benefits of using ESLint.
• Writing a rule to spot undeclared props hiding in plain sight - Article about creating rules that require scope analysis.
• Dear Old ESLint - Quick intro article on ESLint.

Installation and Setup

• Lintier - CLI to quickly scaffold an ESLint & Prettier setup in a TypeScript project.