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.

  • The Most Powerful Software Platform for EHSQ and ESG Management Icon
    The Most Powerful Software Platform for EHSQ and ESG Management

    Addresses the needs of small businesses and large global organizations with thousands of users in multiple locations.

    Choose from a complete set of software solutions across EHSQ that address all aspects of top performing Environmental, Health and Safety, and Quality management programs.
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  • Next-Gen Encryption for Post-Quantum Security | CLEAR by Quantum Knight Icon
    Next-Gen Encryption for Post-Quantum Security | CLEAR by Quantum Knight

    Lock Down Any Resource, Anywhere, Anytime

    CLEAR by Quantum Knight is a FIPS-140-3 validated encryption SDK engineered for enterprises requiring top-tier security. Offering robust post-quantum cryptography, CLEAR secures files, streaming media, databases, and networks with ease across over 30 modern platforms. Its compact design, smaller than a single smartphone image, ensures maximum efficiency and low energy consumption.
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  • 1
    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: 4 This Week
    Last Update:
    See Project
  • 2
    koa-better-serve

    koa-better-serve

    Small, simple and correct serving of files, using `koa-send`

    Small, simple and correct serving of files, using koa-send.
    Downloads: 4 This Week
    Last Update:
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  • 3
    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: 4 This Week
    Last Update:
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  • 4
    rax

    rax

    A progressive React framework for building universal application

    Ultra-lightweight, high-performance, easy-to-use front-end solution. One-time development and multi-terminal operation, liberating repetitive work, focusing on product logic, and improving development efficiency. The Rax 1.0 system provides a wealth of components and APIs to help business students quickly develop multi-terminal projects. Go Rax is a Rax 1.0 sample app, which is provided for Rax developers for reference and learning. Rax improves the product experience through a lighter core, progressive web applications, and server-side rendering. The out-of-the-box engineering, rich components and surrounding ecology, and one-time development and multi-end delivery help the developer complete his creativity. At the same time, we are also continuing to explore in the field of artificial intelligence, and continue to reduce development thresholds and costs.
    Downloads: 4 This Week
    Last Update:
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  • Simplify Purchasing For Your Business Icon
    Simplify Purchasing For Your Business

    Manage what you buy and how you buy it with Order.co, so you have control over your time and money spent.

    Simplify every aspect of buying for your business in Order.co. From sourcing products to scaling purchasing across locations to automating your AP and approvals workstreams, Order.co is the platform of choice for growing businesses.
    Learn More
  • 5
    sakura

    sakura

    A minimal CSS framework/theme

    Just drop in sakura.css to any webpage and go from ugly looking 1900s website to a pretty modern website in literally 0 seconds. Easy to customize and build on top of sakura. Sakura supports extremely easy theming support using variables for duotone color scheming. Comes with several existing themes, and can be found in the CSS folder of this repository. Don't want to develop using sakura, but instead want to use it on websites with outdated 90's design (i.e. no CSS)? Quick prototyping, especially when working on backend sites and can't yet be bothered to fidget with CSS/HTML. Building a quick (but pretty) site/blog for your best friend or aunt! No need to remember tons of different class names for every other CSS framework. Works amazingly with markdown generated HTML pages (eliminates the need of hacks like including .img img-responsive in markdown-parser generated <img></img> tags).
    Downloads: 4 This Week
    Last Update:
    See Project
  • 6
    whs.js

    whs.js

    Super-fast 3D framework for Web Applications

    whs is currently at v2 major version. We had plans for v3 yet but development isn't active. So v2 will probably remain the main stable version until further notice. We try to publish minor update releases for bug fixes, we will review PRs. Download the minified library or link the one from CDN. Simple integration of any high-performance physics even with Worker (Multithreading). Integrated Three.js rendering engine. Work with whs.js and Three.js at the same time.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 7
    Alfy

    Alfy

    Create Alfred workflows with ease

    Alfy offers the possibility of caching data, either with the fetch or directly through the cache object. An important thing to note is that the cached data gets invalidated automatically when you update your workflow. This offers the flexibility for developers to change the structure of the cached data between workflows without having to worry about invalid older data. You can remove these properties from your info.plist file as they are being added automatically at install time. When developing your workflow it can be useful to be able to debug it when something is not working. This is when the workflow debugger comes in handy. You can find it in your workflow view in Alfred. Press the insect icon to open it. Alfred lets users set environment variables for a workflow which can then be used by that workflow. This can be useful if you, for example, need the user to specify an API token for a service. You can access the workflow environment variables from process.env.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 8
    Bootbox

    Bootbox

    Wrappers for JavaScript alert(), confirm() and other flexible dialogs

    Bootbox.js is a small JavaScript library which allows you to create programmatic dialog boxes using Bootstrap modals, without having to worry about creating, managing, or removing any of the required DOM elements or JavaScript event handlers. Bootbox provides three functions, alert, confirm, and prompt, whose aim is to mimic their native JavaScript equivalents. Each Bootbox function calls a fourth public function, dialog, which you can use to create your own custom dialogs. See the Documentation for usage and to learn which options are available for each function. Tests are run using Karma using the Mocha test adapter. To run the tests yourself, simply run npm install within the project followed by npm test. Please note that this will require PhantomJS being installed and in your path - if it is not, you may run the tests and capture browsers manually by running karma start from the root of the project.
    Downloads: 3 This Week
    Last Update:
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  • 9
    Bootstrap Vue

    Bootstrap Vue

    Comprehensive implementations of Bootstrap v4 for Vue.js

    With more than 85 components, over 45 available plugins, several directives, and 1000+ icons, BootstrapVue provides one of the most comprehensive implementations of the Bootstrap v4.5 component and grid system available for Vue.js v2.6, complete with extensive and automated WAI-ARIA accessibility markup. With BootstrapVue you can build responsive, mobile-first, and ARIA accessible projects on the web using Vue.js and the world's most popular front-end CSS library, Bootstrap v4. Easily integrate BootstrapVue into your Nuxt.js projects using our included Nuxt.js module. You can optionally specify only the components, directives and/or plugins you require. BootstrapVue's documentation is created using BootstrapVue and generated with Nuxt.js. Create themes with SCSS variables and global options. Built with Vue.js v2.6 and Bootstrap SCSS v4.6. Automated WAI-ARIA accessibility markup.
    Downloads: 3 This Week
    Last Update:
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  • Skillfully - The future of skills based hiring Icon
    Skillfully - The future of skills based hiring

    Realistic Workplace Simulations that Show Applicant Skills in Action

    Skillfully transforms hiring through AI-powered skill simulations that show you how candidates actually perform before you hire them. Our platform helps companies cut through AI-generated resumes and rehearsed interviews by validating real capabilities in action. Through dynamic job specific simulations and skill-based assessments, companies like Bloomberg and McKinsey have cut screening time by 50% while dramatically improving hire quality.
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  • 10
    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: 3 This Week
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  • 11
    Derby

    Derby

    MVC framework making it easy to write collaborative applications

    The Derby MVC framework makes it easy to write realtime, collaborative applications that run in both Node.js and browsers. Derby includes a powerful data synchronization engine called Racer that automatically syncs data among browsers, servers, and a database. Models subscribe to changes on specific objects, enabling granular control of data propagation without defining channels. Racer supports offline usage and conflict resolution out of the box, which greatly simplifies writing multi-user applications. Derby applications load immediately and can be indexed by search engines, because the same templates render on both server and client. In addition, templates define bindings, which instantly update the view when the model changes and vice versa. Derby makes it simple to write applications that load as fast as a search engine, are as interactive as a document editor, and work offline.
    Downloads: 3 This Week
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    See Project
  • 12
    Detox

    Detox

    Gray box end-to-end testing and automation framework for mobile apps

    High velocity native mobile development requires us to adopt continuous integration workflows, which means our reliance on manual QA has to drop significantly. Detox tests your mobile app while it's running in a real device/simulator, interacting with it just like a real user. The most difficult part of automated testing on mobile is the tip of the testing pyramid - E2E. The core problem with E2E tests is flakiness, tests are usually not deterministic. We believe the only way to tackle flakiness head on is by moving from black box testing to gray box testing. That's where Detox comes into play. Detox is built from the ground up to support React Native projects as well as pure native ones. Read the Getting Started Guide to get Detox running on your app in less than 10 minutes. We believe that the only way to address the core difficulties with mobile end-to-end testing is by rethinking some of the principles of the entire approach.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 13
    Discord.js

    Discord.js

    A powerful JavaScript library for interacting with the Discord API

    discord.js is a powerful Node.js module that allows you to interact with the Discord API very easily. It takes a much more object-oriented approach than most other JS Discord libraries, making your bot's code significantly tidier and easier to comprehend. Usability, consistency, and performance are key focuses of discord.js, and it also has nearly 100% coverage of the Discord API. It receives new Discord features shortly after they arrive in the API.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 14
    Flask Debug-toolbar

    Flask Debug-toolbar

    A toolbar overlay for debugging Flask applications

    This extension adds a toolbar overlay to Flask applications containing useful information for debugging. The toolbar will automatically be injected into HTML responses when debug mode is on. In production, setting app.debug = False will disable the toolbar. This extension also supports the Flask app factory pattern by separately creating the toolbar and later initializing it for an app.
    Downloads: 3 This Week
    Last Update:
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  • 15
    Galio

    Galio

    Beautifully designed, Free and Open Source React Native Framework

    Use the power of react native to easily give life to your future mobile projects. The Galio Framework is a 100% free, open-source project, licensed under MIT. It will always remain free to use, powered by a huge international community. Carefully crafted. Ready-made components, typography, and a gorgeous base theme that adapts to each project. You'll be building in style. Built with real app examples, component demos, guides, and how-to’s to get you up and running with mobile apps faster than ever before. Galio Framework comes with tons of ready-to-use features & components. The samples contain several pages that you can use "as is" or add new blocks from the UI Kit. Start building your mobile app in no time. Simply select the components you like and start customizing to suit your needs. Build an app you love. 200+ individually designed components, each with a specific purpose.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 16
    Hexo

    Hexo

    A fast, simple & powerful blog framework, powered by Node.js

    Hexo is a blazing fast and yet simple blog framework powered by Node.js. It supports all features of GitHub Flavored Markdown, as well as most Octopress plugins. Hexo is quite powerful, able to build hundreds of files in a matter of seconds, and equipped with amazing APIs for unlimited extensibility. It offers hundreds of themes and plugins for you to choose from and achieve exactly what you want, and takes just one command to deploy to GitHub Pages, Heroku or other platforms.
    Downloads: 3 This Week
    Last Update:
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  • 17
    JS-Data

    JS-Data

    Give your data the treatment it deserves

    JSData is a framework-agnostic, datastore-agnostic ORM for Node.js and the Browser. Adapters allow JSData to connect to various data sources such as Firebase, MySql, RethinkDB, MongoDB, localStorage, Redis, a REST API, etc. With JSData you can re-use your data modeling code between environments, keep your data layer intact when transitioning between app frameworks, and work with a unified data API on the server and the client. JSData employs conventions for rapid development, but allows for endless customization in order to meet your particular needs.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 18
    JeeSite

    JeeSite

    A basic enterprise information development platform

    JeeSite is a high-efficiency, high-performance, and strong security open source Java EE rapid development platform based on a number of excellent open source projects, highly integrated and packaged. JeeSite is the best basic platform solution for you to quickly complete your project. JeeSite is the best study case for you to learn the Java platform. JeeSite is also the best assistant for private work. JeeSite is a Java-based development platform built on the Spring Framework, with Spring MVC as the model view controller, MyBatis as the data access layer, Apache Shiro as the authority authorization layer, Ehcahe for caching common data, and Activit as the workflow engine. It is the best integration in the JavaEE world. JeeSite is mainly positioned in the field of enterprise informatization. It has built-in basic functions of enterprise informatization system and efficient code generation tools.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 19
    Mithril.js

    Mithril.js

    A JavaScript framework for building brilliant applications

    Mithril is a modern client-side JavaScript framework for building Single Page Applications. It's small (< 10kb gzip), fast and provides routing and XHR utilities out of the box. Mithril is used by companies like Vimeo and Nike, and open source platforms like Lichess. Mithril supports IE11, Firefox ESR, and the last two versions of Firefox, Edge, Safari, and Chrome. No polyfills required. By default, Mithril views are described using hyperscript. Hyperscript offers a terse syntax that can be indented more naturally than HTML for complex tags, and since its syntax is just JavaScript, it's possible to leverage a lot of JavaScript tooling ecosystem. Mithril is all about getting meaningful work done efficiently. Doing file uploads? The docs show you how. Authentication? Documented too. Exit animations? You got it. No extra libraries, no magic.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 20
    Pennywise

    Pennywise

    Cross-platform application to open any website or media

    Cross-platform application to open any website or media in a floating window. Pennywise opens any website or media in a small floating window that remains on top of all other applications. Pennywise windows stays up all the time. No need to keep struggling with alt + tab, use Pennywise for easy multitasking. To enable flash support, copy or link Chrome's Pepperflash plugin into your $HOME/.pennywise-flash. You can find the plugin at the installation path of Chrome. Use it as a floating window for your calendar/checklist/assigned-tickets etc. Watching tutorial while you code? Open the video in Pennywise and keep it in front of you. Making a video course? Open the demo in Pennywise and show the output in real time. Working on some web UI? Open it in Pennywise to avoid pressing alt + tab again and again. Play some video, watch some talk or play some TV series while you work. Working on something non-familiar? Open the docs in Pennywise.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 21
    Preact

    Preact

    Fast 3kB React alternative with the same modern API

    Preact is a lightweight alternative to React that implements the same core component and hooks model in a tiny footprint. It provides a virtual DOM, diffing, and a familiar Component/JSX API, enabling developers to reuse much of their React knowledge. With preact/compat, many React libraries can be used directly, making migration or code sharing practical in performance-sensitive apps. Its focus on size and speed makes it attractive for embedded widgets, mobile web, and scenarios where initial load must be extremely fast. The library embraces modern patterns like functional components, hooks, and context while keeping the API surface minimal. Tooling integrations and ecosystem packages round out the experience, so teams can ship production apps without sacrificing bundle budgets.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 22
    RESTful API Node Server Boilerplate

    RESTful API Node Server Boilerplate

    A boilerplate for building production-ready RESTful APIs using Node.js

    A boilerplate/starter project for quickly building RESTful APIs using Node.js, Express, and Mongoose. By running a single command, you will get a production-ready Node.js app installed and fully configured on your machine. The app comes with many built-in features, such as authentication using JWT, request validation, unit and integration tests, continuous integration, docker support, API documentation, pagination, etc. The app has a utility ApiError class to which you can attach a response code and a message, and then throw it from anywhere (catchAsync will catch it). Request data is validated using Joi. Check the documentation for more details on how to write Joi validation schemas. In production mode, only info, warn, and error logs will be printed to the console. It is up to the server (or process manager) to actually read them from the console and store them in log files.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 23
    SocketCluster

    SocketCluster

    Highly scalable realtime pub/sub and RPC framework

    Highly scalable pub/sub and RPC toolkit optimized for async/await. Pub/sub-channels are very cheap. You can have millions of unique channels without worrying about memory or CPU usage. Channels are automatically cleaned up when they are no longer used. The socket cluster CLI tool exposes kubectl (Kubernetes) shortcut commands to make deploying your app to any Kubernetes cluster really easy. All necessary Kubernetes .yaml files are provided. After deploying your app to a Kubernetes cluster, you can scale indefinitely by using the kubectl scale deployment command to add more SCC-worker and SCC-broker instances as needed. You can perform asynchronous operations anywhere along a socket's inbound or outbound stream without any risk of disrupting the message processing order. Awaiting asynchronous actions along a socket's inbound or outbound streams can cause messages to pile up.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 24
    cryptii

    cryptii

    Web app and framework offering modular conversion and encoding

    Web app and framework offering modular conversion, encoding and encryption. Translations are done client-side without any server interaction. This framework and web app aims to support a wide variety of ciphers, formats, algorithms and methods (called 'Bricks') while keeping them easily combinable. There are currently two types of Bricks: Encoders and Viewers. Encoders manipulate content by encoding or decoding in a specific way and using specific settings while Viewers allow users to access and edit the content fed into or outputted by Encoders in a certain way and format. Bricks can be arranged inside a Pipe. When the content gets edited inside a Viewer or when Brick settings get changed, the result propagates through the Pipe's Bricks in order and in both directions. Chain objects encapsulate UTF-8 text or binary-based content exchanged between Bricks.
    Downloads: 3 This Week
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    See Project
  • 25
    env Koa

    env Koa

    Environment configuration loader for Lad

    Environment configuration loader for Lad.
    Downloads: 3 This Week
    Last Update:
    See Project
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