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

  • Secure User Management, Made Simple | Frontegg Icon
    Secure User Management, Made Simple | Frontegg

    Get 7,500 MAUs, 50 tenants, and 5 SSOs free – integrated into your app with just a few lines of code.

    Frontegg powers modern businesses with a user management platform that’s fast to deploy and built to scale. Embed SSO, multi-tenancy, and a customer-facing admin portal using robust SDKs and APIs – no complex setup required. Designed for the Product-Led Growth era, it simplifies setup, secures your users, and frees your team to innovate. From startups to enterprises, Frontegg delivers enterprise-grade tools at zero cost to start. Kick off today.
    Start for Free
  • AI-powered service management for IT and enterprise teams Icon
    AI-powered service management for IT and enterprise teams

    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity. Maximize operational efficiency with refreshingly simple, AI-powered Freshservice.
    Try it Free
  • 1
    Prettier

    Prettier

    Opinionated Code Formatter

    Prettier is an open source, opinionated code formatter that basically takes all the original styling of your code and enforces a consistent code style through parsing and reprinting following its own rules. It takes the maximum line length into account, wrapping code if needed. Prettier makes writing code in one consistent style automatic, painless and so much easier. No need to spend so much time, effort and mental energy discussing styles or formatting your code. Simply press save and your code is formatted. Prettier supports several languages including JavaScript, TypeScript, JSON, CSS, HTML and more. It also integrates with most editors (Atom, Visual Studio, Vim, Espresso and more).
    Downloads: 7 This Week
    Last Update:
    See Project
  • 2
    Bootstrap 5 UI KIT

    Bootstrap 5 UI KIT

    Bootstrap 5 & Material Design 2.0 UI KIT

    Trusted by 2 000 000+ developers & designers. Used by companies & institutions. Super simple, 1 minute installation. Detailed docs & practical examples. Lots of tutorials. Plain JavaScript (but works also with jQuery). Huge and active community. MIT license, free for personal & commercial use. Simplicity and ease of use are key features of MDB 5 UI Kit. You need only one minute to install and run it. A slideshow component for cycling through elements, images or slides of text, like a carousel. Use MDB custom button styles for actions in forms, dialogs, and more with support for multiple sizes, states, and more. Indicate the loading state of a component or page with MDB spinners, built entirely with HTML, CSS, and no JavaScript. A card is a flexible and extensible content container. It includes options for headers and footers, a wide variety of content, contextual background colors, and powerful display options.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 3
    Globalize

    Globalize

    A JavaScript library for internationalization and localization

    A JavaScript library for internationalization and localization that leverage the official Unicode CLDR JSON data. The library works both for the browser and as a Node.js module. Each language, and the countries that speak that language, have different expectations when it comes to how numbers (including currency and percentages) and dates should appear. Obviously, each language has different names for the days of the week and the months of the year. But they also have different expectations for the structure of dates, such as what order the day, month and year are in. In number formatting, not only does the character used to delineate number groupings and the decimal portion differ, but the placement of those characters differs as well. Globalize provides number formatting and parsing, date and time formatting and parsing, currency formatting, message formatting (ICU message format pattern), and plural support.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 4
    Node.js express.js MongoDB JWT REST API

    Node.js express.js MongoDB JWT REST API

    Node.js express.js MongoDB JWT REST API - Basic Project Skeleton

    This is a basic API REST skeleton written on JavaScript using async/await. Great for building a starter web API for your front-end (Android, iOS, Vue, react, angular, or anything that can consume an API) This project is created to help other developers create a basic REST API in an easy way with Node.js. This basic example shows how powerful and simple JavaScript can be. Do you want to contribute? Pull requests are always welcome to show more features. Custom email/password user system with basic security and blocking for preventing brute force attacks. Login access log with IP, browser and country location (for country it looks for the header cf-ipcountry that CloudFlare creates when protecting your website). NPM script for keeping good source code formatting using prettier and ESLint. JWT Tokens, make requests with a token after login with the Authorization header with value Bearer yourToken where yourToken is the signed and encrypted token given in the response.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

    MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
    Start Free
  • 5
    prettier-eslint-cli

    prettier-eslint-cli

    CLI for prettier-eslint

    You have a bunch of files that you want to format using prettier-eslint. But prettier-eslint can only operate on strings. This is a CLI that allows you to use prettier-eslint on one or multiple files. prettier-eslint-cli forwards on the filePath and other relevant options to prettier-eslint which identifies the applicable ESLint config for each file and uses that to determine the options for prettier and eslint --fix. By default prettier-eslint will simply log the formatted version to the terminal. If you want to overwrite the file itself (a common use-case) then add --write. You should quote your globs, otherwise your terminal will expand the glob before it gets to prettier-eslint.
    Downloads: 0 This Week
    Last Update:
    See Project
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