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
    Parse Server

    Parse Server

    API server module for Node/Express

    Build applications faster with object and file storage, user authentication, push notifications, dashboard and more out of the box. Our preferred channels of communication for help, issues and disscussion. Parse Server works with the Express web application framework. It can be added to existing web applications, or run by itself. Parse Server is continuously tested with the most recent releases of Node.js to ensure compatibility. We follow the Node.js Long Term Support plan and only test against versions that are officially supported and have not reached their end-of-life date. You can use any arbitrary string as your application id and master key. These will be used by your clients to authenticate with the Parse Server. Parse provides SDKs for all the major platforms.
    Downloads: 1 This Week
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  • 2
    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: 1 This Week
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  • 3
    RuoYi

    RuoYi

    The warehouse's SpringBoot-based rights management system

    The warehouse's SpringBoot-based rights management system is easy to read and understand, and the interface is simple and beautiful. The core technology uses Spring, MyBatis, and Shiro without any other heavy dependencies. I have always wanted to make a background management system, and I have seen many excellent open source projects but found no suitable ones. So I started to write a background system in my spare time. So there is Zoe. She can be used for all web applications, such as website management background, website member center, CMS, CRM, OA. All front-end and back-end codes are very compact and easy to use after encapsulation, and the probability of errors is low. Also supports mobile client access. The system will continue to update some useful functions. The user is the system operator, and this function mainly completes the system user configuration. Configure the system organization (company, department, group).
    Downloads: 1 This Week
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  • 4
    Synkra AIOS

    Synkra AIOS

    AI-Orchestrated System for Full Stack Development

    Synkra AIOS is the central framework of Synkra AIOS, an AI-orchestrated system built to streamline full-stack application development by using artificial intelligence to automate and enhance development workflows. It acts as a core foundation layer that connects AI-driven tooling with standard project infrastructure tasks, enabling developers to scaffold, configure, and maintain software stacks more efficiently. The framework includes features for project setup, environment configuration, deployment scaffolding, and intelligent code generation, potentially reducing time spent on boilerplate and repetitive engineering tasks. Synkra AIOS positions itself as a productivity middleware that integrates AI reasoning within traditional devops, front-end, and back-end workflows, allowing teams to produce production-ready applications faster.
    Downloads: 1 This Week
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  • 5
    TableExport

    TableExport

    The simple, easy-to-implement library to export HTML tables to xlsx

    The simple, easy-to-implement library to export HTML tables to xlsx, xls, csv, and txt files. To use this library, include the FileSaver.js library, and TableExport library before the closing body tag of your HTML document. In order to provide Office Open XML SpreadsheetML Format ( .xlsx ) support, you must include the following third-party library in your project before both FileSaver.js and TableExport. To support legacy browsers ( Chrome < 20, Firefox 13, Opera 12.10, IE, 10, Safari 6 ) include the Blob.js polyfill before the FileSaver.js script. Additional properties can be passed-in to customize the look and feel of your tables, buttons, and exported data. Notice that by default, TableExport will create export buttons for three different filetypes xls, csv, txt. You can choose which buttons to generate by setting the formats property to the filetype(s) of your choice.
    Downloads: 1 This Week
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  • 6
    UIkit

    UIkit

    Lightweight modular front-end framework for developing web interfaces

    A lightweight and modular front-end framework for developing fast and powerful web interfaces. UIkit will work on pretty much any modern browser. Using UIkit works best if you have a solid code editor, for example Sublime Text or Atom. To be even more efficient, we recommend that you install one of the autocomplete plugins for your favorite IDE or code editor. This saves a lot of time, as you won't have to look up and type all UIkit classes and markup. To use UIkit's CSS and JavaScript, include the files in your own HTML and then create the markup of any of the components. When you have installed UIkit with Less sources, you can compile it and add your own custom theme. Less is the language that the UIkit styles are written in. This allows you to include customizations in the build process, rather than manually overwriting a lot of CSS rules by hand.
    Downloads: 1 This Week
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  • 7
    Vanilla Framework

    Vanilla Framework

    From community websites to web applications, this CSS framework

    Backed by open-source code and written in Sass by the Canonical Web Team. Vanilla contains a responsive CSS grid, basic style for HTML elements and a selection of key useful patterns and utility classes that you can extend. Designed to be composable, you can include the whole framework to avail of all styles or you can use only what you need for your project. Anyone can contribute to Vanilla, improve it and extend it. All the code is available on GitHub and is licensed under LGPLv3 by Canonical.
    Downloads: 1 This Week
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  • 8
    Wasp

    Wasp

    A programming language that understands what a web app is

    Wasp (Web Application Specification Language) is a declarative DSL (domain-specific language) for developing, building and deploying modern full-stack web apps with less code. Concepts such as app, page, user, login, frontend, production, etc. are baked into the language, bringing a new level of expressiveness and allowing you to get more work done with fewer lines of code. While describing high-level features with Wasp, you still write the rest of your logic in your favorite technologies (currently React, NodeJS, Prisma). Wasp is in alpha and is therefore likely to change a lot, have bugs and miss important features. Due to its expressiveness, you can create and deploy a production-ready web app from scratch with very few lines of concise, consistent, declarative code. When you need more control than Wasp offers, you can write code in existing technologies such as js/html/css/... and combine it with Wasp code!
    Downloads: 1 This Week
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  • 9
    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: 1 This Week
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  • 10
    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: 1 This Week
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  • 11
    layui

    layui

    Classic modular front-end UI framework

    Created by professional front-end, for full-level front-end and back-end developers, a low-threshold, out-of-the-box front-end UI solution. Layui (homonym: UI-like) is a front-end UI framework written with its own module specifications, following the writing and organization of native HTML/CSS/JS, with a very low threshold and ready to use. Its exterior is minimalist, but it does not lose its fullness. The volume is light and the components are abundant. Every detail from the core code to the API has been carefully crafted, which is very suitable for the rapid development of the interface. The first version of layui was released in the golden autumn of 2016. It is different from those UI frameworks based on the underlying MVVM.
    Downloads: 1 This Week
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  • 12
    mpvue

    mpvue

    Small program development framework based on Vue.js

    mpvue is a front-end framework for developing small programs using Vue.js. Framework is based on Vue.js, which can run an applet environment, so as to develop small programs introduced as a complete set of Vue.js development experience. This is Meituan’s business solution to wine, catering, in-store, and finance companies. Use mpvue to develop small programs, you will get to this small program on the basis of the ability of some of the technical features, sucha as thorough component development capabilities, complete Vue.js development experience, convenient Vuexdata management solutions, efficient webpackbuilding mechanisms, support for the use of npm external dependencies, etc. mpvue provides the ability to convert H5 code into small program object code.
    Downloads: 1 This Week
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  • 13
    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: 1 This Week
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  • 14
    smooth UI

    smooth UI

    Modern React UI library

    Modern React UI library. Code less, do more. Smooth UI is a style system / UI library for React. It works with Styled Components or Emotion. It is focused on developer experience, and productivity. You can focus on what you want to build instead of on how to build it. BrowserStack allows us to test in real browsers.
    Downloads: 1 This Week
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  • 15
    todometer

    todometer

    A meter-based to-do list

    A simple, meter-based to-do list built with Electron and React. Positive reinforcement: as you complete tasks, the progress meter fills. Out of sight, out of mind: when you complete something, you don't have to think about it again. Paused items: feel free to put off things (again).
    Downloads: 1 This Week
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  • 16
    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: 1 This Week
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  • 17
    The AJAX JSP Tag Library is a set of JSP tags that simplify the use of Asynchronous JavaScript and XML (AJAX) technology in JavaServer Pages. Development moved to Mercurial
    Downloads: 12 This Week
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  • 18
    Neutralinojs

    Neutralinojs

    Portable and lightweight cross platform app development framework

    Neutralino is a lightweight and portable application development framework. It lets you develop cross-platform applications using JavaScript, HTML and CSS. Why Neutralinojs? In Electron and NWjs you have to install NodeJs and hundreds of dependency libraries. Embedded Chromium and Node creates large overhead and makes even simple apps like “hello world” considerable in size. Neutralino offers a lightweight and portable SDK which is an alternative for Electron and NW.js also with many advantages.
    Downloads: 10 This Week
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  • 19
    xajax is an open source PHP and Javascript library that allows you to easily create powerful Ajax enabled web applications using PHP, HTML, CSS and Javascript. Update web page content asynchronously with simple Javascript calls to access your PHP cod
    Downloads: 4 This Week
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  • 20
    Metawidget
    Metawidget is a smart User Interface widget that populates itself, at runtime, with UI components to match the properties of your business objects. Supports Swing, Java Server Faces (JSF), GWT, Spring, Struts, Android, Hibernate, Groovy, JPA and more
    Downloads: 2 This Week
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  • 21
    WaveMaker - Web Development Made Easy
    Easy-to-use, open source web development platform. Visual, drag and drop tools allow anyone to create web apps with minimal learning curve. Java architecture: Spring, Hibernate, Ajax Dojo toolkit, MySQL, PostgreSQL, HSQLDB (bundles w HSQLDB)
    Downloads: 2 This Week
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  • 22
    Eggdrop
    Eggdrop is the most advanced IRC robot available. It has been under development since December 1993, and unlike most other bots, it is still regularly updated.
    Downloads: 9 This Week
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  • 23
    ZenTaoPHP is a php framework. Main features are: 1. OOP(php>5.2) 2. full mvc support. 3. very lightweight, only 4 files for core. 4. High performance. 5. Neutral naming, no zentao in the code naming. 6. Reasonably structured. 7. Easy to start.
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    Downloads: 9 This Week
    Last Update:
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  • 24

    ajile

    Advanced JavaScript Importing & Loading Extension

    ajile: Advanced JavaScript Importing & Loading Extension allows developers to easily create unique namespaces for JavaScript modules and quickly define dependencies that allow scripts to automatically load and import each other as needed.
    Downloads: 6 This Week
    Last Update:
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  • 25
    PHP5 RAD and object oriented PHP framework for building event-driven stateful web applications. Based on Zend Framework, features tableless HTML, multiple databases, accesskey support, auto data type recognition, transparent AJAX, UTF-8, i18n/l10n.
    Downloads: 1 This Week
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