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.

  • 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
  • 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
  • 1
    Emittery

    Emittery

    Simple and modern async event emitter

    A modern, TypeScript-based event emitter for JavaScript applications, providing an intuitive API for managing events in Node.js and browsers.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 2

    Empact Foundation Class Library

    Cross-platform C++ library for use as a default application framework.

    A mature cross-platform C++ library for use as a default application framework. Features include: * Threading & synchronization * Socket programming: SSL, NanoMsg & ZMQ * File I/O utilities: zlib, ini, yaml * Native Database access: MySQL, SQLite, BerkleyDB, Postgre, REDIS and ODBC * Built-in mini XML parser; optional EXPAT, LIBXML and MSXML support * Network protocol stack: HTTP, FTP, SMTP, POP3, SOAP, XMLRPC * Scripting languages: Perl, Python, JavaScript, VBScript, Java, Lua, TCL, Squirrel * Cloud Computing: AWS * Encryption: OpenSSL * Platforms: Linux/Posix, Windows, Arduino * Over 500+ highly reusable classes. 4000+ fully documented functions. Follow the 'Wiki' link above to explore everything about the framework.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    Emutils

    Emutils

    Search and manage batches of D64/etc files.

    Emutils are a collection of utilities for dealing with files which are in formats most commonly used by Commodore 64 emulators (D64, D71, D81, etc). These include search tools, extractors, converters, archive tools, etc. especially for batch operations.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    RIA AJAX enabled framework is designed for building enterprise application. This framework is expected to work in conjunction with services and acts as presentation layer for SOA.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Forever Free Full-Stack Observability | Grafana Cloud Icon
    Forever Free Full-Stack Observability | Grafana Cloud

    Our generous forever free tier includes the full platform, including the AI Assistant, for 3 users with 10k metrics, 50GB logs, and 50GB traces.

    Built on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.
    Create free account
  • 5
    Entando

    Entando

    The lightest open source Digital Transformation Platform

    Entando is the lightest open source Digital Transformation Platform for Modern Applications. We help customers bring to production enterprise applications that are lightweight, cloud native, and highly customized, and do so significantly faster than their competitors. Our platform harmonizes user experience across enterprise omnichannel applications, accelerating time to market, and increasing development efficiency. Get the latest version of Entando's Community Edition and its Plugins on Github (http://github.com/entando).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    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
  • 7
    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
  • 8
    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
  • 9
    EventWeb creates a bi-directional channel between a browser and a web server. This allows the user to interact with a web application in the same way as a desktop application. Works with Java servlets or as a stand-alone application server.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Build Agents and Models on One Platform Icon
    Build Agents and Models on One Platform

    Everything you need to build production-ready agents and models. Access 200+ Google and third-party AI models and tools.

    Gemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
    Try It Free
  • 10
    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
  • 11
    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
  • 12
    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
  • 13
    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
  • 14
    ExpressJS.com

    ExpressJS.com

    The Express.js Website

    This repository contains the source for the Express web site and documentation, the canonical reference for developers using the Express framework. It organizes material into API reference, getting-started guides, best practices, and topic-focused explanations such as routing, middleware, error handling, templating, and performance. Versioned docs help readers match API behavior to the framework version they’re running, reducing confusion during upgrades. The site showcases common patterns through concise examples, making it easy to translate concepts into working code. In addition to core Express usage, the documentation surfaces ecosystem guidance on things like security headers, structured logging, and integration with view engines or ORMs. Because it is open to community contributions, the documentation evolves alongside Express itself, reflecting real-world questions and solutions.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    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
  • 16
    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
  • 17
    '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
  • 18
    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
  • 19
    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
  • 20
    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
  • 21
    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
  • 22
    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: 0 This Week
    Last Update:
    See Project
  • 23
    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
  • 24
    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
  • 25
    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
MongoDB Logo MongoDB