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

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  • 1
    CoreUI Free Bootstrap Admin Template

    CoreUI Free Bootstrap Admin Template

    Free Bootstrap 5 admin & dashboard template

    CoreUI Admin Panel is not another blend of 3rd parties free components and libraries. It's the only Open Source Bootstrap Admin Dashboard Template built on the enterprise-grade hand-crafted UI Components Library created and backed by professionals. Save thousands of development hours by using ready-made, reusable, and commonly used widgets and UI components. Moreover, CoreUI Bootstrap Admin Template is delivered with a ready-to-use environment, so you don't have to waste time configuring the project. All build scripts and tools are ready to use out of the box. With CoreUI Template you can start a new project in a minute! CoreUI Bootstrap Admin Panel is 100% compatible with Bootstrap 5, so if you are familiar with Bootstrap but you demand something more than it provides, then CoreUI Bootstrap Admin Panel is an answer. On the other hand, if you’re happy to stay with Bootstrap, our admin template goes in hand.
    Downloads: 12 This Week
    Last Update:
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  • 2
    Fabric

    Fabric

    Fabric is an open-source framework for augmenting humans using AI

    Fabric is a command-line framework that turns a curated library of prompt “patterns” into reusable, automatable workflows for large language models. Instead of repeatedly crafting ad-hoc prompts, you pick a pattern (for research, summarization, brainstorming, code review, and more) and feed it inputs or files. The tool standardizes execution with configuration files and environment variables, enabling reproducible runs across different models and providers. Patterns can be customized with variables, chained into pipelines, and applied to entire directories, which helps scale editorial or analytical tasks. A growing catalog of community patterns serves as a knowledge base for effective prompt engineering in practical contexts. In short, Fabric makes LLM work predictable and scriptable, so teams can share methods rather than one-off prompts.
    Downloads: 12 This Week
    Last Update:
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  • 3
    Framework7

    Framework7

    Full featured HTML framework for building iOS & Android apps

    Framework7 - is a free and open source framework to develop mobile, desktop or web apps with a native look and feel. It is also an indispensable prototyping tool to show working app prototypes as soon as possible in case you need to. With such a stunning set of UI components that Framework7 provides right from the box, it allows to create of web apps, progressive web apps (PWA) and iOS and Android apps with a native look and feel. You can use any tools you love when working with Framework7. It doesn’t force you to use anything except plain HTML, CSS and JavaScript. Creating apps with Framework7 is easy as creating a website. Framework7 paired with extra tools like Electron and NW.js allows building native desktop apps. And in addition to vanilla JavaScript library, Framework7 comes with Vue.js, React and Svelte components to bring components-syntax, structured data and data bindings with power and simplicity of Vue.js, React or Svelte.
    Downloads: 11 This Week
    Last Update:
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  • 4
    GraphQL.js

    GraphQL.js

    A reference implementation of GraphQL for JavaScript

    The JavaScript reference implementation for GraphQL, a query language for APIs created by Facebook. GraphQL.js is a general-purpose library and can be used both in a Node server and in the browser. As an example, the GraphiQL tool is built with GraphQL.js! Building a project using GraphQL.js with webpack or rollup should just work and only include the portions of the library you use. This works because GraphQL.js is distributed with both CommonJS (require()) and ESModule (import) files. Ensure that any custom build configurations look for .mjs files! For practical applications, you'll probably want to run GraphQL queries from an API server, rather than executing GraphQL with a command line tool. GraphQL.js provides two important capabilities: building a type schema and serving queries against that type schema.
    Downloads: 11 This Week
    Last Update:
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  • 5
    google-translate-api

    google-translate-api

    A free and unlimited API for Google Translate

    A free and unlimited API for Google Translate. The language in which the text should be translated. Must be one of the codes/names (not case sensitive) contained in languages.js. Auto language detection, spelling correction, language correction. Fast and reliable – it uses the same servers that translate.google.com uses.
    Downloads: 11 This Week
    Last Update:
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  • 6
    XOOPS Web Application System

    XOOPS Web Application System

    The world's leading content management systems (CMS) written in PHP

    PLEASE NOTE: Latest XOOPS files are on http://github.com/xoops and http://github.com/xoopsmodules25x) XOOPS is a Web application platform written in PHP for the MySQL database. Its object orientation makes it an ideal tool for developing small or large community websites, intra-company and corporate portals, weblogs, and much more. XOOPS is an acronym of eXtensible Object Oriented Portal System. Initially a portal system, XOOPS is now a leading content management system (CMS) that serves as a versatile Web framework. XOOPS can also be used as a weblog or journal via a standard install using the News module alone. Another approach is to use modules like News, Forum, Download, Web Links, etc. to form a community that interacts with members and visitors. Or think big, like an enterprise, and develop modules to use with eShop that integrate into XOOP's uniform user management system. XOOPS is released under the terms of the GNU General Public License (GPL)
    Downloads: 73 This Week
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  • 7
    7.css

    7.css

    A JS-independent, tree-shakeable CSS framework

    7.css is a CSS framework for building interface components that look like Windows 7. It is built on top of the GUI backbone of XP.css, which is an extension of 98.css. This framework relies on the usage of semantic HTML. To make a button, you'll need to use a button. Input elements require labels. Tabs rely on the role="tab" attribute. This page will guide you through that process, but accessibility is a primary goal of this project. It does not ship with any JavaScript, so it is compatible with your frontend framework of choice.
    Downloads: 10 This Week
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  • 8
    MaterializeCSS

    MaterializeCSS

    Materialize, a CSS Framework based on Material Design

    A modern responsive front-end framework based on Material Design. We did most of the heavy lifting for you to provide a default stylings that incorporate our custom components. Additionally, we refined animations and transitions to provide a smoother experience for developers. By utilizing elements and principles of Material Design, we were able to create a framework that incorporates components and animations that provide more feedback to users. Additionally, a single underlying responsive system across all platforms allow for a more unified user experience. We have provided detailed documentation as well as specific code examples to help new users get started. We are also always open to feedback and can answer any questions a user may have about Materialize.
    Downloads: 10 This Week
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  • 9
    MediaElement.js

    MediaElement.js

    A dependable HTML media framework

    Boost your player with Chromecast, Google Analytics and more. MediaElement.js is a blazingly fast and amazingly powerful HTML5 audio and video library that creates a unified feel for media files (MP4, MP3, FLV), streaming content (HLS, M(PEG)-DASH, RTMP), and embeddable players like YouTube, Vimeo, Twitch, DailyMotion, Facebook, and SoundCloud. MediaElement.js is a set of custom Flash plugins that mimic the HTML5 MediaElement API for browsers that don't support HTML5 or don't support the media codecs you're using. Instead of using Flash as a fallback, Flash is used to make the browser seem HTML5 compliant and enable codecs like H.264 (via Flash) on all browsers. In general, MediaElement.js supports IE11+, MS Edge, Chrome, Firefox, Safari, iOS 8+ and Android 4.0+. It is strongly recommended to read the entire documentation and check the demo folder to get the most out of this package.
    Downloads: 10 This Week
    Last Update:
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  • 10
    Qooxdoo JavaScript Framework

    Qooxdoo JavaScript Framework

    qooxdoo - Universal JavaScript Framework

    qooxdoo is a universal JavaScript framework that enables you to create applications for a wide range of platforms. With its object-oriented programming model, you build rich, interactive applications (RIAs), native-like apps for mobile devices, light-weight traditional web applications or even applications to run outside the browser. You leverage its integrated tool chain to develop and deploy applications of any scale while taking advantage of modern web technologies like HTML5 and CSS3, its comprehensive feature set, and a state-of-the-art GUI toolkit. qooxdoo is open source under liberal licenses, led by a dedicated developer team, with a vibrant community. Qooxdoo offers a wide range of widgets and UI components, plus powerful server I/O communication. Built-in unit testing framework with unit tests across the API and User Interface testing.
    Downloads: 10 This Week
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  • 11
    VvvebJs

    VvvebJs

    Drag and drop website builder javascript library

    Drag and drop website builder javascript library. Components and blocks/snippets drag and drop. Undo/Redo operations. One or two panels interface. File manager and component hierarchy navigation. Add a new page. Live code editor. Image upload with example PHP script included. Page download or export HTML or save the page on the server with example PHP script included. Components/Blocks list search. Bootstrap 4 components. Youtube, Google maps, Charts.js, etc widgets. By default, the editor comes with Bootstrap 4 and Widgets components and can be extended with any kind of components and inputs.
    Downloads: 10 This Week
    Last Update:
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  • 12
    A-Frame

    A-Frame

    A web framework for building virtual reality experiences

    A-Frame is an open source web framework for building virtual reality experiences. With A-Frame you can create WebVR with HTML and entity-component works on Vive, Rift, Daydream and more. A-Frame simplifies virtual reality by handling the required 3D and WebVR boilerplate to get you running on platforms like mobile, desktop, Vive, and Rift. Because it can be used from HTML, just about everyone can use it. A-Frame is a thin yet powerful framework on top of three.js. While A-Frame is completely accessible from HTML, developers can also make full use of JavaScript, DOM APIs, three.js, WebVR, and WebGL.
    Downloads: 9 This Week
    Last Update:
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  • 13
    Cabin

    Cabin

    Cabin is the best JavaScript and Node.js logging service and logging

    Cabin is the best JavaScript and Node.js logging service and logging npm package. Cabin is a drop-in replacement and the best alternative to Sentry, Timber, Airbrake, Papertrail, Loggly, Bugsnag, etc. Cabin will automatically detect and mask the following list of extremely sensitive types of data in your logs. Reduce your disk storage costs through Cabin's automatic conversion of Streams, Buffers, and ArrayBuffers to simplified, descriptive-only objects that otherwise would be unreadable (and obviously pollute your log files and disk storage). Cabin works with the most popular Node.js HTTP frameworks (e.g. Express and Koa), request body handling packages (e.g. multer and body-parser), and the passport authentication framework. It supports Node v6.4+ and IE 10+ out of the box, and its browser-ready bundle is only 39 KB (minified and gzipped).
    Downloads: 9 This Week
    Last Update:
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  • 14
    Fastify

    Fastify

    Fast and low overhead web framework, for Node.js

    Fastify is a high-performance web framework for Node.js that focuses on minimal overhead and predictable extensibility. It pairs a declarative routing API with JSON Schema–driven validation and serialization, so requests are checked at the edge and responses are produced quickly. The framework’s plugin system uses encapsulation to isolate routes, decorators, and hooks, which keeps large codebases modular and avoids accidental cross-pollution. Built-in hooks (such as onRequest, preHandler, and onSend) and lightweight decorators make it easy to insert cross-cutting concerns like auth, caching, and metrics. Fastify ships with thoughtful defaults like structured logging via Pino and AJV for schema validation, and it has first-class TypeScript types. The result is a server stack that scales to high throughput while remaining easy to reason about in production.
    Downloads: 9 This Week
    Last Update:
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  • 15
    Lightning Web Components

    Lightning Web Components

    A Blazing Fast, Enterprise-Grade Web Components Foundation

    Lean, lightweight runtime optimized for performance, with minimal boilerplate code. Lightning Web Components uses standard HTML, modern JavaScript (ES6+), and the best of native Web Components. Leave abstractions behind and build custom elements with HTML, JavaScript, and CSS. Lightning web components are custom elements built using HTML and modern JavaScript. Ready to learn more? Check out the Developer Guide and write code in the Playground. You’ll be up and running in no time. Create fast, versatile web components and apps using the stack and tools your team prefers. Shape the framework through your pull requests and help push native Web Components forward. Use the latest web standards to build robust components that run in modern browsers and IE 11. Follow the instructions in your terminal. For Select a type of project, choose Single Page App and choose LWC as the variant.
    Downloads: 9 This Week
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  • 16
    MyEtherWallet

    MyEtherWallet

    MyEtherWallet to interact with the Ethereum blockchain

    MEW (MyEtherWallet) is a free, client-side interface helping you interact with the Ethereum blockchain. Our easy-to-use, open-source platform allows you to generate wallets, interact with smart contracts, and so much more. Easily access all you favorite apps across Ethereum and Polkadot chains, buy crypto, swap tokens, and manage your NFTs. Welcome to the multichain future. ETH Blocks is an NFT series representing mined Ethereum blocks and their properties. Whether it's a special block number, the block of your first transaction, or a block that contains a transaction with a special message. Own a part of history with ETH Blocks by MEW. Access the Ethereum blockchain's original and most-trusted wallet, now with a host of new features all contained in an elegant and friendly interface.
    Downloads: 9 This Week
    Last Update:
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  • 17
    Serverless Express by Vendia

    Serverless Express by Vendia

    Run Node.js web applications and APIs using existing frameworks

    Run REST APIs and other web applications using your existing Node.js application framework (Express, Koa, Hapi, Sails, etc.), on top of AWS Lambda and Amazon API Gateway. Vendia is the real-time data cloud for rapidly building applications that securely share data across departments, companies, clouds, and regions. We’re excited to announce the latest release of Vendia Share! This release includes new features like smart contracts, user-level transactions, the beta release of Azure support, and more. We also added a pay-as-you-go pricing plan that gives developers from organizations of any size access to Vendia's enterprise-grade platform for building data-driven, multi-party, cross-cloud apps. If you want to migrate an existing application to AWS Lambda, it's advised to get the minimal example up and running first, and then copy your application source in.
    Downloads: 9 This Week
    Last Update:
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  • 18
    deck.gl

    deck.gl

    WebGL2 powered visualization framework

    deck.gl is designed to simplify high-performance, WebGL-based visualization of large data sets. Users can quickly get impressive visual results with minimal effort by composing existing layers, or leveraging deck.gl's extensible architecture to address customer needs. deck.gl maps data (usually an array of JSON objects) into a stack of visual layers - e.g. icons, polygons, texts; and look at them with views: e.g. map, first-person, orthographic. deck.gl handles a number of challenges out of the box. Deck.gl is designed to be highly customizable. All layers come with flexible APIs to allow programmatic control of each aspect of the rendering. All core classes such are easily extendable by the users to address custom use cases. deck.gl is part of vis.gl, an OpenJS Foundation project. Read the contribution guidelines if you are interested in contributing.
    Downloads: 9 This Week
    Last Update:
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  • 19
    env Koa

    env Koa

    Environment configuration loader for Lad

    Environment configuration loader for Lad.
    Downloads: 9 This Week
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  • 20
    grd

    grd

    A CSS grid framework using Flexbox. Only 321 bytes (Gzipped)

    A CSS grid framework using Flexbox. Simple and provides just 2 base classes Grid and Cell and some modifiers. Light-weight, only 321 bytes (Gzipped). Flexible, easy-to-use Flexbox features. Flexible Box Layout Module and calc() as CSS unit values used in Grd are available on modern browsers (Chrome, Firefox, Safari, Opera, Edge, and IE11). If you want to use Grd with Sass, you can choose grd-sass as Sass port.
    Downloads: 9 This Week
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  • 21
    howler.js

    howler.js

    Javascript audio library for the modern web

    howler.js is an audio library for the modern web. It defaults to Web Audio API and falls back to HTML5 Audio. This makes working with audio in JavaScript easy and reliable across all platforms. Additional information, live demos and a user showcase are available at howlerjs.com. Single API for all audio needs, defaults to Web Audio API and falls back to HTML5 Audio, handles edge cases and bugs across environments, supports all codecs for full cross-browser support, automatic caching for improved performance, control sounds individually, in groups or globally, playback of multiple sounds at once. Easy sound sprite definition and playback, full control for fading, rate, seek, volume, etc. Easily add 3D spatial sound or stereo panning, modular - use what you want and easy to extend. No outside dependencies, just pure JavaScript. As light as 7kb gzipped.
    Downloads: 9 This Week
    Last Update:
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  • 22
    i18n

    i18n

    i18n wrapper and Koa middleware for Lad

    i18n wrapper and Koa middleware for Lad.
    Downloads: 9 This Week
    Last Update:
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  • 23
    jsdom

    jsdom

    JavaScript implementation of various web standards, for use with Node

    jsdom is a pure-JavaScript implementation of many web standards, notably the WHATWG DOM and HTML Standards, for use with Node.js. In general, the goal of the project is to emulate enough of a subset of a web browser to be useful for testing and scraping real-world web applications. The latest versions of jsdom require Node.js v10 or newer. To use jsdom, you will primarily use the JSDOM constructor, which is a named export of the jsdom main module. Pass the constructor a string. The resulting object is an instance of the JSDOM class, which contains a number of useful properties and methods besides window. In general, it can be used to act on the jsdom from the "outside," doing things that are not possible with the normal DOM APIs. For simple cases, where you don't need any of this functionality, we recommend a coding pattern.
    Downloads: 9 This Week
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  • 24
    koa-cash

    koa-cash

    HTTP response caching for Koa. Supports Redis, in-memory store, etc.

    HTTP response caching for Koa. Supports Redis, in-memory store, and more.
    Downloads: 9 This Week
    Last Update:
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  • 25
    lad.sh

    lad.sh

    Demo for Lad - The Best Node.js Framework

    Lad scaffolds a Koa web app and API framework for Node.js. Built on top of Koa, the successor to Express. This full-stack web server uses the latest versions of Pug, Gulp, Sass, PostCSS, Bootstrap, and more. Inspired by Stripe, the RESTful API server also uses Koa and has a complete stack with error handling, authentication, and tests. Layered on top of Bree, the job scheduler supports cron and human-readable syntax, child processes, and more. Redirect HTTP to HTTPS traffic with support for Let's Encrypt Free SSL Certbot validation.
    Downloads: 9 This Week
    Last Update:
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