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
    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
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  • 2

    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.
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    Downloads: 56 This Week
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  • 3
    iWiccle - Website CMS Community Builder
    iWiccle is an online Web 2.0 platform. innovative builders specializing in social networks, blogging sites, web communities, gallery presentations, link directories, & article portals. A universal web community script written in PHP & MySQL. New v1.3
    Downloads: 31 This Week
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  • 4
    7.css

    7.css

    A JS-independent, tree-shakeable CSS framework

    7.css is a CSS framework for building interface components that look like Windows 7. It is built on top of the GUI backbone of XP.css, which is an extension of 98.css. This framework relies on the usage of semantic HTML. To make a button, you'll need to use a button. Input elements require labels. Tabs rely on the role="tab" attribute. This page will guide you through that process, but accessibility is a primary goal of this project. It does not ship with any JavaScript, so it is compatible with your frontend framework of choice.
    Downloads: 2 This Week
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    A-Frame

    A-Frame

    A web framework for building virtual reality experiences

    A-Frame is an open source web framework for building virtual reality experiences. With A-Frame you can create WebVR with HTML and entity-component works on Vive, Rift, Daydream and more. A-Frame simplifies virtual reality by handling the required 3D and WebVR boilerplate to get you running on platforms like mobile, desktop, Vive, and Rift. Because it can be used from HTML, just about everyone can use it. A-Frame is a thin yet powerful framework on top of three.js. While A-Frame is completely accessible from HTML, developers can also make full use of JavaScript, DOM APIs, three.js, WebVR, and WebGL.
    Downloads: 2 This Week
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  • 6
    Appium

    Appium

    Automation for iOS, Android, and Windows Apps

    Appium is an open source test automation framework for use with native, hybrid and mobile web apps. It drives iOS, Android, and Windows apps using the WebDriver protocol. Is native app automation missing from your tool belt? Problem solved. Appium is built on the idea that testing native apps shouldn't require including an SDK or recompiling your app. And that you should be able to use your preferred test practices, frameworks, and tools. Appium is an open source project and has made design and tool decisions to encourage a vibrant contributing community. Appium aims to automate any mobile app from any language and any test framework, with full access to back-end APIs and DBs from test code. Write tests with your favorite dev tools using all the above programming languages, and probably more (with the Selenium WebDriver API and language-specific client libraries).
    Downloads: 2 This Week
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  • 7
    Aurelia

    Aurelia

    Framework entry point bringing together all the sub-modules of Aurelia

    Aurelia is a modern, front-end JavaScript framework for building browser, mobile, and desktop applications. It focuses on aligning closely with web platform specifications, using convention over configuration, and having minimal framework intrusion. Basically, we want you to just write your code without the framework getting in your way. This library is part of the Aurelia platform. It contains the aurelia-framework library, which brings together all the required core aurelia libraries into a ready-to-go application-building platform. Aurelia applications are built by composing a series of simple components. By convention, components are made up of a vanilla JavaScript or Typescript class, with a corresponding HTML template. Aurelia's standards-based, unobtrusive style makes it the only framework that empowers you to build components using vanilla JavaScript or TypeScript. If you know modern JS and HTML, there's little more to learn to build even the most complex apps.
    Downloads: 2 This Week
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  • 8
    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: 2 This Week
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  • 9
    Framework7

    Framework7

    Full featured HTML framework for building iOS & Android apps

    Framework7 - is a free and open source framework to develop mobile, desktop or web apps with a native look and feel. It is also an indispensable prototyping tool to show working app prototypes as soon as possible in case you need to. With such a stunning set of UI components that Framework7 provides right from the box, it allows to create of web apps, progressive web apps (PWA) and iOS and Android apps with a native look and feel. You can use any tools you love when working with Framework7. It doesn’t force you to use anything except plain HTML, CSS and JavaScript. Creating apps with Framework7 is easy as creating a website. Framework7 paired with extra tools like Electron and NW.js allows building native desktop apps. And in addition to vanilla JavaScript library, Framework7 comes with Vue.js, React and Svelte components to bring components-syntax, structured data and data bindings with power and simplicity of Vue.js, React or Svelte.
    Downloads: 2 This Week
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  • 10
    Jasonette

    Jasonette

    Native App over HTTP, on iOS

    Jasonette offers a different, easy way to let you create an iOS app, and that’s by using a single JSON, loaded over HTTP, local file, or anywhere. That’s right, with nothing but JSON, you can create your own native iOS app. It fetches a JSON markup from a server, and self-constructs into the native app in real time. It’s 100% native, 100% JSON, no hard-coding required. It’s the easiest and fastest way to build your app, as it only takes minutes and needs no programming experience. You can make changes to your live app and see these changes instantly. Jasonette comes with all the essential native APIs and components, and if there’s a specific feature you’re looking for, you can easily extend Jasonette. You could even integrate Jasonette with your existing iOS project, so you don’t have to switch to a completely different way of programming, just let Jasonette handle a part of your app.
    Downloads: 2 This Week
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  • 11
    Leemons

    Leemons

    The Powerful, user-friendly, open source Learning Experience platform

    The ultimate open source learning platform. The only tool that supports the most successful teaching methodologies: is project-based learning, role-playing, cooperative, flipped classroom, design thinking, etc. Turn your institution into an innovative space for knowledge exploration and construction. Make it easier for students and teachers to interact about their activities. Manage tasks with Kanban: keep students focused on their next task Project-based learning has never been easier: cross-curricular activities where teachers and students work together. Everyone involved in an assignment knows what, how and when. Your students prepare together. Makes observation and experimentation-based methodologies easy for any teacher, with no extra effort. Designing immersive materials and activities to reuse, adapt and share is easier than ever.
    Downloads: 2 This Week
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  • 12
    Middy

    Middy

    The stylish Node.js middleware engine for AWS Lambda

    Middy is a very simple middleware engine that allows you to simplify your AWS Lambda code when using Node.js. If you have used web frameworks like Express, then you will be familiar with the concepts adopted in Middy and you will be able to get started very quickly. A middleware engine allows you to focus on the strict business logic of your Lambda and then attach additional common elements like authentication, authorization, validation, serialization, etc. in a modular and reusable way by decorating the main business logic. One of the main strengths of serverless and AWS Lambda is that, from a developer perspective, your focus is mostly shifted toward implementing business logic. Anyway, when you are writing a handler, you still have to deal with some common technical concerns outside business logic, like input parsing and validation, output serialization, error handling, etc.
    Downloads: 2 This Week
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  • 13
    Mocha

    Mocha

    A feature-rich JavaScript test framework running on Node.js

    Mocha is a feature-rich JavaScript test framework running on Node.js and in the browser, making asynchronous testing simple and fun. Mocha tests run serially, allowing for flexible and accurate reporting, while mapping uncaught exceptions to the correct test cases. Hosted on GitHub. Mocha runs in the browser. Every release of Mocha will have new builds of ./mocha.js and ./mocha.css for use in the browser. Mocha is the most-depended-upon module on npm and Mocha is an independent open-source project, maintained exclusively by volunteers. Given Mocha’s use of function expressions to define suites and test cases, it’s straightforward to generate your tests dynamically. No special syntax is required — plain ol’ JavaScript can be used to achieve functionality similar to “parameterized” tests, which you may have seen in other frameworks.
    Downloads: 2 This Week
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  • 14
    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
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  • 15
    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: 2 This Week
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  • 16
    Semiotic

    Semiotic

    A data visualization framework combining React & D3

    Semiotic is a data visualization framework combining React & D3. It provides three types of frames XYFrame, OrdinalFrame, NetworkFrame, to deploy a wide variety of charts. XY data i.e. line charts and scatterplots. Categorical data i.e. bar charts, violin plots, parallel coordinates. Topological and network data i.e. flow diagrams, network visualization, and hierarchical views. A guide for creating a line chart, timeseries, difference line, and line percents using XYFrame along with hover behavior, responsive dimensions, and styling. XYFrame takes lines as an object or an array of objects. Each object represents a line. Every object needs a coordinates property with the array of points for that line. The points will be rendered in the order of that array. You can use a key other than coordinates by changing the lineDataAccessor props.
    Downloads: 2 This Week
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  • 17
    Serverless Express by Vendia

    Serverless Express by Vendia

    Run Node.js web applications and APIs using existing frameworks

    Run REST APIs and other web applications using your existing Node.js application framework (Express, Koa, Hapi, Sails, etc.), on top of AWS Lambda and Amazon API Gateway. Vendia is the real-time data cloud for rapidly building applications that securely share data across departments, companies, clouds, and regions. We’re excited to announce the latest release of Vendia Share! This release includes new features like smart contracts, user-level transactions, the beta release of Azure support, and more. We also added a pay-as-you-go pricing plan that gives developers from organizations of any size access to Vendia's enterprise-grade platform for building data-driven, multi-party, cross-cloud apps. If you want to migrate an existing application to AWS Lambda, it's advised to get the minimal example up and running first, and then copy your application source in.
    Downloads: 2 This Week
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  • 18
    Serverless Framework

    Serverless Framework

    The easy and open way to build serverless applications

    Serverless Framework gives you everything you need to build serverless applications on any cloud. It provides structure, workflow automation and best practices out-of-the-box so you can deploy sophisticated serverless architectures. It uses new, event-driven compute services, such as AWS Lambda, Azure Functions, Google CloudFunctions and more. Serverless Framework lets you build apps made up of microservices that run in response to events. These auto-scale and will only charge you when they run, which means lesser costs for application maintenance. You can also create new or extend existing commands with its great selection of community-written plugins.
    Downloads: 2 This Week
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  • 19
    Synthetix

    Synthetix

    Synthetix Solidity smart contracts

    Synthetix is a new financial primitive enabling the creation of synthetic assets, offering unique derivatives and exposure to real-world assets on the blockchain. Leveraging the Synthetix debt pool and our innovative liquidity framework, our traders are guaranteed to have some of the best price execution around, with little to no slippage and fills you can’t get elsewhere. Capture the price movements of popular cryptocurrencies, fiat currencies, stocks, commodities and more with zero slippage. Synthetic assets, or Synths, are assets voted into existence by the community and can come in the form of fiat currencies, cryptocurrencies, stocks, commodities and anything else with a price. Many platforms already leverage the deep liquidity and composability of Synthetix to deliver better trades with lower slippage, hedging, and other unique use cases.
    Downloads: 2 This Week
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  • 20
    PyGObject for Windows

    PyGObject for Windows

    All-In-One PyGI/PyGObject for Windows Installer

    Cross-platform python dynamic bindings of GObject-based libraries for Windows 32-bit and 64-bit.
    Downloads: 10 This Week
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  • 21
    AriaNg Native

    AriaNg Native

    A better aria2 desktop frontend than AriaNg, containing all features

    AriaNg is a modern web frontend making aria2 easier to use. AriaNg is written in pure HTML & javascript, thus it does not need any compilers or runtime environment. You can just put AriaNg in your web server and open it in your browser. AriaNg uses a responsive layout and supports any desktop or mobile device. Pure Html & Javascript, no runtime required. Responsive design, supporting desktop and mobile devices. User-friendly interface. Sort tasks (by name, size, progress, remaining time, download speed, etc.), files, and BitTorrent peers. Search tasks. Retry tasks. Adjust task order by dragging. More information on tasks (health percentage, client information of bt peers, etc.) Filter files by specified file types (videos, audio, pictures, documents, applications, archives, etc.) or file extensions. Tree view for the multi-directory task. Download/upload speed chart for aria2 or single task. Full support for aria2 settings.
    Downloads: 1 This Week
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  • 22
    Bootstrap 5 UI KIT

    Bootstrap 5 UI KIT

    Bootstrap 5 & Material Design 2.0 UI KIT

    Trusted by 2 000 000+ developers & designers. Used by companies & institutions. Super simple, 1 minute installation. Detailed docs & practical examples. Lots of tutorials. Plain JavaScript (but works also with jQuery). Huge and active community. MIT license, free for personal & commercial use. Simplicity and ease of use are key features of MDB 5 UI Kit. You need only one minute to install and run it. A slideshow component for cycling through elements, images or slides of text, like a carousel. Use MDB custom button styles for actions in forms, dialogs, and more with support for multiple sizes, states, and more. Indicate the loading state of a component or page with MDB spinners, built entirely with HTML, CSS, and no JavaScript. A card is a flexible and extensible content container. It includes options for headers and footers, a wide variety of content, contextual background colors, and powerful display options.
    Downloads: 1 This Week
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  • 23
    Bot Framework Web Chat

    Bot Framework Web Chat

    A highly-customizable web-based client for Azure Bot Services

    This repository contains code for the Bot Framework Web Chat component. The Bot Framework Web Chat component is a highly-customizable web-based client for the Bot Framework V4 SDK. The Bot Framework SDK v4 enables developers to model conversation and build sophisticated bot applications. This repo is part of the Microsoft Bot Framework, a comprehensive framework for building enterprise-grade conversational AI experiences. Create a bot with the ability to speak, listen, understand, and learn from your users with Azure Cognitive Services. Benefit from open source SDK and tools to build, test, and connect bots that interact naturally with users, wherever they are. Build secure, global, scalable solutions that integrate with your existing IT ecosystem. Create an AI experience that can extend your brand and keep you in control of your own data.
    Downloads: 1 This Week
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  • 24
    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: 1 This Week
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  • 25
    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: 1 This Week
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