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.

  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
    Try Retool free
  • 1
    EnterPHPrise is a the ultimate and most complete solution for system development for the Enterprise. Bringing PHP development to a whole new level, it's much more than just a framework, it's a complete development and project management tool.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 2
    Etch is a cross-platform, language- and transport-independent framework for building and consuming network services. With Etch, service development and consumption becomes no more difficult than library development and consumption.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    Ethlint

    Ethlint

    (Formerly Solium) Code quality & Security Linter for Solidity

    Ethlint (Formerly Solium) analyzes your Solidity code for style & security issues and fixes them. Standardize Smart Contract practices across your organization. Integrate with your build system. Deploy with confidence! Solium does not strictly follow Solidity Style Guide. The practices it enforces by default are best practices for the community at large. If you’re using vim with syntastic, and prefer to use a locally installed version of Solium (rather than a global version), you can install syntastic local solium to automatically load the local version in packages that have installed their own. Solium does not strictly adhere to Solidity Style Guide. It aims to promote coding practices agreed upon by the community at large. You can specify rules or plugins to apply as command line options. If you specify one, it overrides its corresponding configuration in the soliumrc file.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    Evergreen

    Evergreen

    Evergreen React UI framework by Segment

    Evergreen is a React UI Framework for building ambitious products on the web. Brought to you by Segment. Evergreen contains a set of polished React components that work out of the box. Evergreen components are built on top of a React UI Primitive for endless composability. Evergreen features a UI design language for enterprise-grade web applications. Evergreen contains a set of polished React components that work out of the box. Evergreen components are built on top of a React UI Primitive for endless composability. Evergreen features a UI design language for enterprise-grade web applications. Evergreen is built on the belief that you can never predict all future requirements, only prepare for it. Instead of creating fixed configurations that work today, Evergreen promotes building systems that anticipate new and changing design requirements. Evergreen is built on the belief that things should work out of the box with smart defaults, but also offer full control when needed.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Enterprise-grade ITSM, for every business Icon
    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity.

    Freshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
    Try it Free
  • 5
    Evver Games is an open source project that contains an AJAX web renderer and framework for creating card games; along with the card games Golf and No Peeking.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    Execution Work, it´s a new framework engine for php programming. Ew supports OOP, MVC, XML, XSL, DataBase2Objects, and much more. Ew has its own Business Components, with many "packages" to make your programming life simple and useful.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    Expand is an Open Source tool for easily developing professional Web applications. Is based on JEE5 standard technologies, annotations and pojos. Includes rapid prototyping features and a set of frameworks and wizards to ultra-fast creation of Web apps.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    ExtJS client and server side extension with a built-in ORM solution that can be used separately. Integration with Spring, JPA and JCR on server side as well as client side improved controls will simplify your development process and design decisions.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    A WYSIWYG XML editor. The goal of this editor is to enable (web)developers to create an easy to use interface for authors to edit XML content. See the wiki for a more detailed description.
    Downloads: 0 This Week
    Last Update:
    See Project
  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • 10
    'Extrakt' provides you with an plugin-based, easy to use PHP framework for fetching dynamic content from other pages on the internet, passing parameters either by GET or by POST. A demo application is available at: http://www.linuxuser.at/vuln-search
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    Framework for Advanced Developments in PHP : A tool to develop complex websites, including search engine, query layer, administration panel in progress... Cache template generation, on the fly library creation to build business applications.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    FDJT is a lightweight portable Web toolkit. In general, FDJT does not add new abstractions to the underlying Web DOM and UI models, but adds functionality to the abstractions already there.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    FGSL2ZF
    Component library to extend Zend Framework. MVC with implicit CRUD. Tutorial in PDF available in download page. Project leader: FGSL. Homepage: www.fgsl.eti.br
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    FROG is revolutionary tool used to externalize application properties for WebLogic. It manages properties files in a centralized location(Admin server). It supports dynamic loading of files in fully clustered environment.FROG is platform independent.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    Fabriq Framework
    Fabriq, a rapid development framework for PHP that makes use of MVC, DRY, and ORM.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    Fabriq Modules
    This project manages modules that can be used with the Fabriq framework. Module functionality was added in Fabriq version 1.3
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    Facets is a web application framework that leverages a simple MVC architecture for the server side and a feature-packed Javascript component model for the client. The two pieces are designed to be seemlessly integrated for very dynamic AJAX-style apps.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    Fastify DX

    Fastify DX

    A Full Stack Framework based on Fastify and Vite

    Fastify DX is an upcoming full stack framework built on top of Fastify and Vite. In this early stage, we're working to define a Universal Route Module API. Currently, only Fastify v3 is supported, v4 support is already in the works. Fastify DX is currently in alpha. Right now the focus is on implementing the same API for React, Vue, Solid and Svelte. A minimal zx-based CLI for enhanced Developer Experience is planned next. Subscribe to this newsletter to hear about the public beta.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Feeling Responsive

    Feeling Responsive

    »Feeling Responsive« is a free flexible theme for Jekyll

    Feeling Responsive is a free flexible theme for Jekyll built on the Foundation framework. You can use it for your company site, as a portfolio or as a blog.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    A simple, yet powerful JavaScript framework that can help you build Web 2.0 applications. The framework is seperated into modules in order to reduce download times.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Fire Detector

    Fire Detector

    Detect web framework and javascript libraries run on browsing website

    When you surf the internet with Fire Detector, You can also find more unknown frameworks and libraries. It is based on [LibrarySniffer](https://github.com/justjavac/ChromeSnifferPlus/). I've replaced some deprecated javascript interfaces with asynchronous ones adopted by Firefox for its add-ons --- ### Limitations - WebExtension only works on sites that allow content scripts. With this WebExtension, You can detect:
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    FireWeb

    FireWeb

    Java Single Page Web Application Framework

    Java Single Page Application Framework. Using POJO/JavaScript/WebSocket/HTML. Without any scripting - only pure Java classes. Simply and easy to learn, use and extend.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23

    Flask-AppBuilder

    Rapid web application development (python + Flask)

    Simple and rapid Application builder, built on top of Flask. includes detailed security, auto form generation, google charts and much more. Demo on: http://flaskappbuilder.pythonanywhere.com/
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    Flat UI Free
    Flat UI Free is made on the basis of Twitter Bootstrap 3 in a stunning flat-style. Flat UI Free contains many basic and complex components which are great for designers to have at hand: buttons, inputs, button groups, selects, checkboxes and radio-buttons, tags, menus, progress bars, sliders, navigation elements, and more. Use the free/updated version of Bootstrap generator – Startup App. We have considered your needs in developing the HTML version of our bootstrap theme, which contains the same elements as the PSD version and is perfect for creating great websites. With this Framework, you can spend even less time on routine work, saving that time for creativity. Colored, stylish icons can easily be modified and used in a wide variety of projects, as they contain original layers. Glyphs are also available in PSD, HTML/CSS, and SVG formats. Bootstrap theme design also includes color swatches.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Flight

    Flight

    A component-based, event-driven JavaScript framework from Twitter

    Flight is a lightweight, component-based JavaScript framework that maps behavior to DOM nodes. Twitter uses it for their web applications. By way of example, we've included a simple email client demo (browse the source) built over the Flight framework. There's also a flight implementation over on the todoMVC site. Flight uses jQuery and requires a module loader with support for AMD, like WebPack or Require.js. Please read the Flight documentation for installation instructions. Flight is distinct from existing frameworks in that it doesn't prescribe or provide any particular approach to rendering or providing data to a web application. It's agnostic to how requests are routed, which templating language you use or even if you render your HTML on the client or the server. While some web frameworks encourage developers to arrange their code around a prescribed model layer, Flight is organized around the existing DOM model with functionality mapped directly to DOM nodes.
    Downloads: 0 This Week
    Last Update:
    See Project