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.

  • 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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  • AestheticsPro Medical Spa Software Icon
    AestheticsPro Medical Spa Software

    Our new software release will dramatically improve your medspa business performance while enhancing the customer experience

    AestheticsPro is the most complete Aesthetics Software on the market today. HIPAA Cloud Compliant with electronic charting, integrated POS, targeted marketing and results driven reporting; AestheticsPro delivers the tools you need to manage your medical spa business. It is our mission To Provide an All-in-One Cutting Edge Software to the Aesthetics Industry.
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  • 1
    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: 3 This Week
    Last Update:
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  • 2
    jQWidgets

    jQWidgets

    Angular, Vue, React, Web Components, Blazor, Javascript, jQuery, etc.

    jQWidgets provides a comprehensive solution for building professional web sites and mobile apps. It is built entirely on open standards and technologies like HTML5, CSS, and JavaScript. jQWidgets enables responsive web development and helps you create apps and websites that look beautiful on desktops, tablets, and smart phones. You can use jQWidgets with TypeScript, popular frameworks like Angular, Vue, React, and server-side technologies like ASP.NET MVC, PHP, JSP, and Node.js. jQWidgets is a feature complete framework with professional touch-enabled Javascript components, themes, input validation, drag & drop plug-ins, data adapters, built-in WAI-ARIA accessibility, internationalization and MVVM support.
    Downloads: 3 This Week
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  • 3
    koa-better-error-handler

    koa-better-error-handler

    A better error-handler for Lad and Koa. Makes `ctx.throw` awesome

    Lad is the best Node.js framework. Made by a former Express TC and Koa team member. A better error-handler for Lad and Koa. Makes ctx.throw awesome (best used with koa-404-handler) Detects common programmer mistakes by detecting errors of TypeError, SyntaxError, ReferenceError, RangeError, URIError, and EvalError and yields generic "Internal Server Error" (only applies to production mode).
    Downloads: 3 This Week
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  • 4
    koa-session-mongoose

    koa-session-mongoose

    Mongoose store for Koa sessions

    Mongoose storage layer for koa-session.
    Downloads: 3 This Week
    Last Update:
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  • Award-Winning Medical Office Software Designed for Your Specialty Icon
    Award-Winning Medical Office Software Designed for Your Specialty

    Succeed and scale your practice with cloud-based, data-backed, AI-powered healthcare software.

    RXNT is an ambulatory healthcare technology pioneer that empowers medical practices and healthcare organizations to succeed and scale through innovative, data-backed, AI-powered software.
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  • 5
    mui

    mui

    High-performance framework closest to native APP experience

    The gap between performance and experience has always been the primary reason for mobile app developers to abandon HTML5. The browser’s natural page-cutting white screen, the unbearable turning animation, the jittering of floating elements, and the inability to pull down to refresh smoothly, all of which frustrate HTML5 developers, especially when they get a low-end Android machine to run, and the phone falls. On the other hand, the browser default control styles are few and ugly, making a beautiful control is very troublesome, and there are some simple UI frameworks but low performance. The mui framework effectively solves these problems. This is a framework that can facilitate the development of high-performance apps, and it is also the framework that is closest to the effect of native apps.
    Downloads: 3 This Week
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  • 6
    reactstrap

    reactstrap

    Simple React Bootstrap 5 components

    Reactstrap is currently compatible with Bootstrap 5.1. If you are using Bootstrap 4, you'll need to use Reactstrap v8. This library contains React Bootstrap components that favor composition and control. The library does not depend on jQuery or Bootstrap javascript. However, Poppers.js via react-popper is relied upon for advanced positioning of content like Tooltips, Popovers, and auto-flipping Dropdowns. There are a few core concepts to understand in order to make the most out of this library. Your content is expected to be composed via props.children rather than using named props to pass in Components. Attributes in this library are used to pass in-state, conveniently apply modifier classes, enable advanced functionality (like tether), or automatically include non-content-based elements.
    Downloads: 3 This Week
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  • 7
    serverless-chrome

    serverless-chrome

    Run headless Chrome/Chromium on AWS Lambda

    Serverless Chrome contains everything you need to get started running headless Chrome on AWS Lambda (possibly Azure and GCP Functions soon). The aim of this project is to provide the scaffolding for using Headless Chrome during a serverless function invocation. Serverless Chrome takes care of building and bundling the Chrome binaries and making sure Chrome is running when your serverless function executes. In addition, this project also provides a few example services for common patterns (e.g. taking a screenshot of a page, printing to PDF, some scraping, etc.). Why? Because it's neat. It also opens up interesting possibilities for using the Chrome DevTools Protocol (and tools like Chromeless or Puppeteer) in serverless architectures and doing testing/CI, web-scraping, pre-rendering, etc. You must configure your AWS credentials either by defining AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY environmental variables, or using an AWS profile.
    Downloads: 3 This Week
    Last Update:
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  • 8
    uni-app

    uni-app

    A cross-platform framework using Vue.js

    uni-app is a cross-platform framework that lets developers build applications with Vue syntax and deploy them to multiple targets: iOS, Android, web (H5), and a range of mini-program ecosystems. It abstracts platform differences through a unified component and API layer, so most business logic and UI code can be shared across outputs. The tooling includes a CLI, IDE support, and a plugin market that provides native integrations, UI kits, and deployment helpers. Developers can choose between rendering engines and build modes to optimize for performance or compatibility per platform. The framework emphasizes rapid development with live preview, strong documentation, and scaffolds for common app patterns. In practice, uni-app is used to ship multi-surface apps quickly in markets where super-app mini-programs and mobile apps must coexist.
    Downloads: 3 This Week
    Last Update:
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  • 9
    ZK - Simply Ajax and Mobile
    ZK is an open-source Java framework for building modern web and mobile applications. It enables developers to create rich, interactive UIs using only Java — no JavaScript required. With 200+ Ajax-powered components, event-driven architecture, and support for popular technologies like Spring, Java EE, and JSP/JSF, ZK makes it simple to deliver powerful and user-friendly web applications.
    Downloads: 11 This Week
    Last Update:
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  • Resco toolkit for building mobile apps Icon
    Resco toolkit for building mobile apps

    A no-code toolkit for building responsive and resilient mobile business applications for Microsoft Power Platform, Dynamics 365, Dataverse and Salesfo

    Deploying mobile apps with Resco takes days, not months—all without writing a single line of code. Workers can download the Resco app from AppStore, Google Play, or Windows Store, log into your company environment, and instantly use the app you have published on any device.
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  • 10
    Artillery

    Artillery

    Cloud-scale load testing. Fully serverless, test any stack

    Artillery is cloud-native, open source, and integrates with your favorite monitoring and CI/CD stack. Load test anything, at any scale. The most advanced load-testing platform in the world. Get started and run a test in minutes from your local machine. Then scale it out effortlessly. Free & open-source. Artillery scales like no other. Run your tests from your own AWS account with no infra to set up or manage. Use Playwright to load test with real browsers. Test HTTP, WebSocket, Socket.io, gRPC, Kafka, HLS, and more. Write scenarios with multi-step interactions. Designed for testing transactional APIs and web apps. Use ready-made integrations or write custom logic in Node.js, using any of the thousands of useful npm modules. Artillery integrates with the software you know, love and rely on.
    Downloads: 2 This Week
    Last Update:
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  • 11
    BeEF

    BeEF

    The browser exploitation framework project

    BeEF is short for The Browser Exploitation Framework. It is a penetration testing tool that focuses on the web browser. Amid growing concerns about web-borne attacks against clients, including mobile clients, BeEF allows the professional penetration tester to assess the actual security posture of a target environment by using client-side attack vectors. Unlike other security frameworks, BeEF looks past the hardened network perimeter and client system, and examines exploitability within the context of the one open door: the web browser. BeEF will hook one or more web browsers and use them as beachheads for launching directed command modules and further attacks against the system from within the browser context.
    Downloads: 2 This Week
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  • 12
    Bootstrap-checkbox

    Bootstrap-checkbox

    A checkbox component based on Bootstrap framework

    A checkbox component based on the Bootstrap framework.
    Downloads: 2 This Week
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  • 13
    ButterCMS JS client

    ButterCMS JS client

    Node/JS API client for ButterCMS

    A seamless CMS with a blazing fast API and marketing dashboard. Stop wasting dev time and free your marketers from your legacy CMS.
    Downloads: 2 This Week
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  • 14
    CodeceptJS

    CodeceptJS

    Supercharged End 2 End Testing Framework for NodeJS

    CodeceptJS is a modern end-to-end testing framework for Node.js applications, enabling developers to write tests in a behavior-driven development (BDD) style with an emphasis on simplicity and readability.
    Downloads: 2 This Week
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  • 15
    Create GraphQL

    Create GraphQL

    Command-line utility to build production-ready servers with GraphQL

    Create production-ready GraphQL servers. Create-GraphQL is a command-line utility to build production-ready servers with GraphQL and also generate Mutations, Types, and more into existent projects.
    Downloads: 2 This Week
    Last Update:
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  • 16
    Dockerode

    Dockerode

    Docker + Node = Dockerode (Node.js module for Docker's Remote API)

    Dockerode is a Node.js module that provides a Docker Remote API client, allowing developers to manage Docker containers, images, and networks programmatically within their Node.js applications.
    Downloads: 2 This Week
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  • 17
    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: 2 This Week
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  • 18
    KeystoneJS

    KeystoneJS

    Node.js CMS and web app framework

    KeystoneJS is an open source framework for developing database-driven websites, applications and APIs in Node.js. Built on Express and MongoDB. Keystone will configure express - the de facto web server for node.js - for you and connect to your MongoDB database using Mongoose, the leading ODM package. Keystone starts with best practices for setting up your MV* application, and makes it easy to manage your templates, views and routes. IDs, Strings, Booleans, Dates and Numbers are the building blocks of your database. Keystone builds on these with useful, real-world field types like name, email, password, address, image and relationship fields (and more). Whether you use it while you're building out your application, or in production as a database content management system, Keystone's Admin UI will save you time and make managing your data easy. Sometimes, async code can get complicated to do simple things.
    Downloads: 2 This Week
    Last Update:
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  • 19
    Knockout

    Knockout

    Tool to create rich, responsive UIs with JavaScript

    Easily associate DOM elements with model data using a concise, readable syntax. When your data model's state changes, your UI updates automatically. Implicitly set up chains of relationships between model data, to transform and combine it. Quickly generate sophisticated, nested UIs as a function of your model data. Get started with knockout.js quickly, learning to build single-page applications, custom bindings and more with interactive tutorials. Knockout is a JavaScript MVVM (a modern variant of MVC) library that makes it easier to create rich, desktop-like user interfaces with JavaScript and HTML. It uses observers to make your UI automatically stay in sync with an underlying data model, along with a powerful and extensible set of declarative bindings to enable productive development. For Node.js developers, Knockout is also available from npm.
    Downloads: 2 This Week
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  • 20
    Laravel Web Tinker

    Laravel Web Tinker

    Tinker in your browser

    Artisan's tinker command is a great way to tinker with your application in the terminal. Unfortunately running a few lines of code, making edits, and copy/pasting code can be bothersome. Wouldn't it be great to tinker in the browser? This package will add a route to your application where you can tinker to your heart's content. In case light hurts your eyes, there's a dark mode too.
    Downloads: 2 This Week
    Last Update:
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  • 21
    Meteor

    Meteor

    Meteor, the JavaScript App Platform

    Meteor is a full-stack JavaScript framework that streamlines building real-time web and mobile applications from a single codebase. It couples a Node.js backend with a reactive data system so UI updates propagate automatically when data changes. The framework popularized DDP (a lightweight pub/sub protocol) and a client cache (Minimongo) to mirror server collections on the client for latency-compensated interactions. A batteries-included build system, package ecosystem, and opinionated project structure reduce setup time for accounts, methods, publications, and UI integration. Historically paired with Blaze, Meteor also works well with modern front-end libraries like React, Vue, or Svelte for rendering. Its dev experience focuses on hot reloads, rapid prototyping, and predictable data flow, making it attractive for teams that want real-time features without stitching together many separate tools.
    Downloads: 2 This Week
    Last Update:
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  • 22
    Milligram

    Milligram

    A minimalist CSS framework

    Milligram provides a minimal setup of styles for a fast and clean starting point. Just it! Only 2kb gzipped! It's not about a UI framework. Specially designed for better performance and higher productivity with fewer properties to reset resulting in cleaner code. Hope you enjoy it! There are some ways to get started. First, see all download options available below, then choose the most suitable option for your need. Now you should add the main file of the Milligram and the CSS Reset in the header of your project. Just that! The Button, an essential part of any user experience. Buttons come in three basic styles in Milligram: The button element has flat color by default, whereas .button-outline has a simple outline around, and .button-clear is entirely clear. The List is a very versatile and common way to display items. Milligram has three types of lists.
    Downloads: 2 This Week
    Last Update:
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  • 23
    NES.css

    NES.css

    NES-style CSS Framework

    NES.css is a NES-style(8bit-like) CSS Framework. NES.css is available via either npm (preferred), Yarn, or a CDN. Our package.json contains some additional metadata under the following keys, path to our main Sass source file, path to our non-minified CSS. NES.css doesn't provide any fonts, but we do maintain the following list of fonts that we recommend for usage alongside the library. NES.css only provides components. You will need to define your own layout. The recommended font for NES.css is Press Start 2P. However, Press Start 2P only supports English characters. When you're using this framework with any language other than English, please use another font. Follow the Google Fonts instructions about how to include them. NES.css only requires CSS and doesn't depend on any JavaScript.
    Downloads: 2 This Week
    Last Update:
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  • 24
    Omi

    Omi

    Front end cross-frameworks framework

    Omi (pronounced /ˈomɪ/) is cross-frameworks framework base on Web Component, you can also use omio compatible IE8+ with the same grammar. One framework, Mobile & desktop & mini program. Simply download and include with <script>. Omi will be registered as a global variable. If you need to be compatible with IE8+, you can choose omio, which has almost the same API as omi, and Omi will be registered as a global variable. Omi provides the official CLI. You don't need to learn how to configure webpack, Babel or TypeScript. CLI helps you configure everything and provides various templates for different project types. Pass data through the component tree without having to pass props down manually at every level by store, auto update the view on demand. Cross frameworks(react, preact, vue, angular), components of omi are pure custom elements. Excellent compatibility(IE8+) with omio and enhanced CSS, rpx unit support base on 750 screen width.
    Downloads: 2 This Week
    Last Update:
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  • 25
    PaperCSS

    PaperCSS

    The Less Formal CSS Framework

    The less formal CSS framework, with a quick and easy integration. We provide compiled CSS (paper.css) as well as minified CSS (paper.min.css). You can choose which components you may want to use. Only the components that get imported into src/styles.scss will be compiled into dist/paper.css. You can also play with original, source files, written in SCSS, in src/. You can customize PaperCSS easily, clone the repo, run npm install and make any changes to .scss files in src/. The main place you might want to make changes would be core/_config.scss, where you can specify new colors or fonts for your CSS build. After you make changes, be sure to build the new CSS files. Do so by running npm run css:build and get them from the dist/ folder.
    Downloads: 2 This Week
    Last Update:
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