Browse free open source JavaScript Linters and projects below. Use the toggles on the left to filter open source JavaScript Linters by OS, license, language, programming language, and project status.

  • Simplify IT and security with a single endpoint management platform Icon
    Simplify IT and security with a single endpoint management platform

    Automate the hardest parts of IT

    NinjaOne automates the hardest parts of IT, delivering visibility, security, and control over all endpoints for more than 20,000 customers. The NinjaOne automated endpoint management platform is proven to increase productivity, reduce security risk, and lower costs for IT teams and managed service providers. The company seamlessly integrates with a wide range of IT and security technologies. NinjaOne is obsessed with customer success and provides free and unlimited onboarding, training, and support.
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  • Powering the best of the internet | Fastly Icon
    Powering the best of the internet | Fastly

    Fastly's edge cloud platform delivers faster, safer, and more scalable sites and apps to customers.

    Ensure your websites, applications and services can effortlessly handle the demands of your users with Fastly. Fastly’s portfolio is designed to be highly performant, personalized and secure while seamlessly scaling to support your growth.
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  • 1
    ESLint

    ESLint

    The pluggable linting utility for identifying patterns in Javascript

    ESLint is an open source tool for identifying and reporting on patterns found in ECMAScript/JavaScript code. ESLint is written using Node.js
    Downloads: 17 This Week
    Last Update:
    See Project
  • 2
    stylelint

    stylelint

    A linter that helps you avoid errors and enforce conventions

    stylelint understands the latest CSS syntax including custom properties and level 4 selectors. Extracts embedded styles from HTML, markdown and CSS-in-JS object & template literals. Parses CSS-like syntaxes like SCSS, Sass, Less and SugarSS. Has over 170 built-in rules to catch errors, apply limits and enforce stylistic conventions. Supports plugins so you can create your own rules or make use of plugins written by the community. Automatically fixes the majority of stylistic violations. Itis well tested with over 15000 unit tests. Supports shareable configs that you can extend or create. It is unopinionated so that you can customize it to your exact needs. stylelint has a growing community and is used by Facebook, GitHub and WordPress. You can configure the built-in stylistic rules to allow both multi-line and single-line rules. The choice of when to use each belongs to the user.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 3
    eslint-config

    eslint-config

    Anthony's ESLint config presets

    Anthony's ESLint config presets. Auto fix for formatting (aimed to be used standalone without Prettier). Designed to work with TypeScript, Vue out-of-box. Lint also for json, yaml, markdown. Sorted imports, dangling commas for cleaner commit diff. Reasonable defaults, best practices, only one-line of config.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 4
    eslint-plugin-unicorn

    eslint-plugin-unicorn

    More than 100 powerful ESLint rules

    More than 100 powerful ESLint rules. You might want to check out XO, which includes this plugin. Each rule has emojis denoting if it belongs to the recommended configuration if some problems reported by the rule are automatically fixable by the --fix command line option, or if some problems reported by the rule are manually fixable by editor suggestions. Use a preset config or configure each rules in package.json.
    Downloads: 4 This Week
    Last Update:
    See Project
  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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  • 5
    CSSLint

    CSSLint

    Automated linting of cascading stylesheets

    CSSLint is an open-source CSS code quality tool originally written by Nicholas C. Zakas and Nicole Sullivan. A lint tool performs static analysis of source code and flags patterns that might be errors or otherwise cause problems for the developer. CSSLint is a tool to help point out problems with your CSS code. It does basic syntax checking as well as applying a set of rules to the code that look for problematic patterns or signs of inefficiency. The rules are all pluggable, so you can easily write your own or omit ones you don't want. You can integrate CSSLint into your favorite IDE to make checking your CSS code quality easy. In fact, some IDEs already have CSSLint built-in. Once you're familiar with the CSSLint command-line interface, the next step is to integrate it into your build system.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 6
    Gulp Boilerplate

    Gulp Boilerplate

    A boilerplate for building web projects with Gulp.js

    A boilerplate for building web projects with Gulp.js. This project is no longer maintained, and is offered as-is. It is strongly recommended that you instead use my Build Tool Boilerplate. Concatenate, minify, and lint JavaScript. Compile, minify, autoprefix, and lint Sass. Optimize SVGs. Copy static files and folders into your dist directory. Automatically add headers and project details to JS and CSS files. Create polyfilled and non-polyfilled versions of JS files. Watch for file changes, and automatically recompile build and reload webpages. Gulp Boilerplate makes it easy to turn features on and off, so you can reuse it for all of your projects without having to delete or modify tasks.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 7
    babel-eslint

    babel-eslint

    A wrapper for Babel's parser used for ESLint

    babel-eslint allows you to lint ALL valid Babel code with the fantastic ESLint. ESLint's default parser and core rules only support the latest final ECMAScript standard and do not support experimental (such as new features) and non-standard (such as Flow or TypeScript types) syntax provided by Babel. babel-eslint is a parser that allows ESLint to run on source code that is transformed by Babel. You only need to use babel-eslint if you are using Babel to transform your code. If this is not the case, please use the relevant parser for your chosen flavor of ECMAScript (note that the default parser supports all non-experimental syntax as well as JSX). ESLint allows for the use of custom parsers. When using this plugin, your code is parsed by Babel's parser (using the configuration specified in your Babel configuration file) and the resulting AST is transformed into an ESTree-compliant structure that ESLint can understand.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 8
    esprint

    esprint

    Fast eslint runner

    esprint (pronounced E-S-sprint) speeds up eslint by running the linting engine across multiple threads. esprint sets up a server daemon to cache the lint status of each file in memory. It uses a watcher to determine when files change, to only lint files as necessary. It also has a CI mode where it does not set up a daemon and just lints in parallel. In order to use esprint, first place an .esprintrc file in the root directory your project. This is similar to a .flowconfig if you use flow types. The .esprintrc file describes which paths to lint and which paths to ignore. You can also override the port to start the background server on. esprint will find the root of your project automatically and lint the whole project. In default mode, esprint will start a background server to watch source files and cache lint results in memory.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 9
    lint-staged

    lint-staged

    Run linters on git staged files

    Run linters against staged git files and don't let anything slip into your code base! Linting makes more sense when run before committing your code. By doing so you can ensure no errors go into the repository and enforce code style. But running a lint process on a whole project is slow, and linting results can be irrelevant. Ultimately you only want to lint files that will be committed. This project contains a script that will run arbitrary shell tasks with a list of staged files as an argument, filtered by a specified glob pattern. Linter commands work on a subset of all staged files, defined by a glob pattern. lint-staged uses micromatch for matching files. The concept of lint-staged is to run configured linter tasks (or other tasks) on files that are staged in git. lint-staged will always pass a list of all staged files to the task, and ignoring any files should be configured in the task itself.
    Downloads: 1 This Week
    Last Update:
    See Project
  • No-Nonsense Code-to-Cloud Security for Devs | Aikido Icon
    No-Nonsense Code-to-Cloud Security for Devs | Aikido

    Connect your GitHub, GitLab, Bitbucket, or Azure DevOps account to start scanning your repos for free.

    Aikido provides a unified security platform for developers, combining 12 powerful scans like SAST, DAST, and CSPM. AI-driven AutoFix and AutoTriage streamline vulnerability management, while runtime protection blocks attacks.
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  • 10
    prettier standard

    prettier standard

    Formats with Prettier and lints with ESLint+Standard!

    Formats with prettier (actually prettierx) and lints with eslint preconfigured with standard rules. You don't have to fix any whitespace errors and waste time configuring eslint presets. Prettier-standard is best used with the prettier-standard --lint command which formats and lints all non-ignored files in the repository.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 11
    Bootlint

    Bootlint

    HTML linter for Bootstrap projects

    Bootlint is a tool that checks for several common HTML mistakes in webpages that are using Bootstrap in a fairly "vanilla" way. Vanilla Bootstrap's components/widgets require their parts of the DOM to conform to certain structures. Bootlint checks that instances of Bootstrap components have correctly structured HTML. Optimal usage of Bootstrap also requires that your pages include certain <meta> tags, an HTML5 doctype declaration, etc.; Bootlint checks that these are present. Bootlint assumes that you are using Bootstrap's default class names in your webpage, as opposed to taking advantage of the "mixins" functionality of Less or Sass to map them to custom class names. If you are using mixins, Bootlint may report some false-positive warnings. However, there are some Bootlint checks that are applicable even if you are using mixins pervasively.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    Ethlint

    Ethlint

    (Formerly Solium) Code quality & Security Linter for Solidity

    Ethlint (Formerly Solium) analyzes your Solidity code for style & security issues and fixes them. Standardize Smart Contract practices across your organization. Integrate with your build system. Deploy with confidence! Solium does not strictly follow Solidity Style Guide. The practices it enforces by default are best practices for the community at large. If you’re using vim with syntastic, and prefer to use a locally installed version of Solium (rather than a global version), you can install syntastic local solium to automatically load the local version in packages that have installed their own. Solium does not strictly adhere to Solidity Style Guide. It aims to promote coding practices agreed upon by the community at large. You can specify rules or plugins to apply as command line options. If you specify one, it overrides its corresponding configuration in the soliumrc file.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    JavaScript Standard Style

    JavaScript Standard Style

    JavaScript style guide, linter, and formatter

    JavaScript Standard Style is a JavaScript style guide with linter and automatic formatter. It’s the simple, easy, fuss-free way to get a consistent style in your project. No more hundred-line style configuration files for every module/project; no more messy or inconsistent code; and no more wasting time sending code back and forth between reviewer and contributor. With Standard, your code is automatically formatted, no configuration necessary. With Standard, code clarity and community conventions is paramount. This may not make sense to all projects or development cultures, but does make a lot of sense for open source projects where setting up clear, automated contributor expectations makes a project healthier.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Luna Code Checker

    Luna Code Checker

    An advanced web-based tool for checking JavaScript code using ESLint.

    Luna Code Checker An advanced web-based tool for checking JavaScript code using ESLint. How to Use Clone the repository. Run npm install to install the dependencies. Run npm start to start the server. Open http://localhost:3000 in your web browser. Write or paste your JavaScript code in the textarea. Click the "Check Code" button to see linting results. Features Comprehensive syntax and style checking using ESLint. Detailed error messages including line numbers and descriptions. License This project is open source and available under the MIT License.
    Downloads: 0 This Week
    Last Update:
    See Project
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