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.

  • 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.
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  • Go from Code to Production URL in Seconds Icon
    Go from Code to Production URL in Seconds

    Cloud Run deploys apps in any language instantly. Scales to zero. Pay only when code runs.

    Skip the Kubernetes configs. Cloud Run handles HTTPS, scaling, and infrastructure automatically. Two million requests free per month.
    Try it free
  • 1
    ToolJet

    ToolJet

    Extensible low-code framework for building business applications

    Extensible low-code framework for building business applications. Connect to databases, cloud storages, GraphQL, API endpoints, Airtable, etc and build apps using drag and drop application builder. Built using JavaScript/TypeScript. Everything you need to build internal tools. Open-source low-code application development platform for building and deploying business applications. Build complicated frontends without any experience in React, CSS or event HTML. Drag and drop 35+ in-built UI components to build even complicated frontends. Adding new components, resizing them, adjusting position, changing colors etc can be done using the visual app editor. Customize the component with in-built properties and styles without using a single line of code. Viewer for verifying current properties of components, queries and global states of applications. Every app can have multiple pages that can be linked with each other.
    Downloads: 6 This Week
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  • 2
    pH7 Social Dating CMS (pH7Builder)❤️

    pH7 Social Dating CMS (pH7Builder)❤️

    🚀 Professional Social Dating Web App Builder (formerly pH7CMS)

    pH7Builder is a Professional, Free & Open Source PHP Social Dating Builder Software (primarily designed for developers ...). This Social Dating Web App is fully coded in object-oriented PHP (OOP) with the MVC pattern (Model-View-Controller). It is low resource-intensive, extremely powerful and highly secure. pH7Builder is included with over 42 native modules and is based on its homemade pH7 Framework which includes more than 52 packages To summarize, pH7Builder Social Dating Script gives you the perfect ingredients to create the best dating web app or social networking site on the World Wide Web! -- Get Involved! -- If you want to work on an Innovative Open Source Social/Dating Software Project with a Beautiful PHP Code using the latest PHP Features while collaborating with nice people and finally if you love the "Social" and "Dating" Services, ...you HAVE TO DO IT! - Fork the repo http://github.com/pH7Software/pH7-Social-Dating-CMS
    Downloads: 29 This Week
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  • 3
    ImpressCMS

    ImpressCMS

    Make a lasting impression!

    Community websites can be difficult to maintain and a target for hackers. But, not with ImpressCMS behind it. Started in 2007 by a talented and committed group of developers and designers unhappy with the progress of the projects they were working on, ImpressCMS continues to lead in providing secure, easy to build and maintain community websites. ImpressCMS is built using PHP and MySQL, and employs JavaScript and Smarty and is optimized for performance - on even shared hosts. Secure. Easy. Open. Friendly.
    Downloads: 27 This Week
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  • 4
    DC-SDK

    DC-SDK

    DC-SDK is based on the open source project Cesium for development

    DC-SDK is based on the open-source project Cesium for the second development of two three-dimensional WebGis application frameworks, the framework optimizes the use of Cesium and adds some additional features, designed for developers to quickly build WebGis applications. Installing with NPM or YARN is recommended and it works seamlessly with webpack. Since the DC framework sets CESIUM_BASE_URL to ./libs/dc-sdk/resources/, you need to copy Cesium-related static resources files: Assets, Workers, and ThirdParty to libs/dc-sdk/resources directory of the project to ensure that the 3D scene can be rendered properly. You can also use DC.baseUrl to set the static resource base related to Cesium.
    Downloads: 5 This Week
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  • 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
    JeeSite

    JeeSite

    A basic enterprise information development platform

    JeeSite is a high-efficiency, high-performance, and strong security open source Java EE rapid development platform based on a number of excellent open source projects, highly integrated and packaged. JeeSite is the best basic platform solution for you to quickly complete your project. JeeSite is the best study case for you to learn the Java platform. JeeSite is also the best assistant for private work. JeeSite is a Java-based development platform built on the Spring Framework, with Spring MVC as the model view controller, MyBatis as the data access layer, Apache Shiro as the authority authorization layer, Ehcahe for caching common data, and Activit as the workflow engine. It is the best integration in the JavaEE world. JeeSite is mainly positioned in the field of enterprise informatization. It has built-in basic functions of enterprise informatization system and efficient code generation tools.
    Downloads: 5 This Week
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  • 6
    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: 5 This Week
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  • 7
    deck.gl

    deck.gl

    WebGL2 powered visualization framework

    deck.gl is designed to simplify high-performance, WebGL-based visualization of large data sets. Users can quickly get impressive visual results with minimal effort by composing existing layers, or leveraging deck.gl's extensible architecture to address customer needs. deck.gl maps data (usually an array of JSON objects) into a stack of visual layers - e.g. icons, polygons, texts; and look at them with views: e.g. map, first-person, orthographic. deck.gl handles a number of challenges out of the box. Deck.gl is designed to be highly customizable. All layers come with flexible APIs to allow programmatic control of each aspect of the rendering. All core classes such are easily extendable by the users to address custom use cases. deck.gl is part of vis.gl, an OpenJS Foundation project. Read the contribution guidelines if you are interested in contributing.
    Downloads: 5 This Week
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  • 8
    reveal.js

    reveal.js

    The HTML Presentation Framework

    reveal.js is a framework for creating beautiful interactive presentations using HTML. It comes with a wide range of features, including nested slides, auto-sliding, touch navigation, Markdown support, PDF export, speaker notes, theming and more. It also comes with a JavaScript API that allows you to control various other options, and a list of plugins that can be used to extend reveal.js further. reveal.js currently offers full support for any recently released version of the following browsers: Chrome, Safari, Firefox, Opera, Edge and IE10-11. It has limited support for IE9 and Firefox 3.6. For a live demonstration, visit https://revealjs.com
    Downloads: 5 This Week
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  • 9
    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: 4 This Week
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  • Build Securely on AWS with Proven Frameworks Icon
    Build Securely on AWS with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • 10
    AMP

    AMP

    Web component framework for building ads, emails, websites and more

    AMP is an open source web component framework that allows you to easily create user-first websites, ads, emails, stories and more. AMP creates fast, smooth-loading web pages that prioritize the user-experience, consistently providing a fast experience across all devices and platforms.
    Downloads: 4 This Week
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  • 11
    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: 4 This Week
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  • 12
    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: 4 This Week
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  • 13
    Gantry Framework

    Gantry Framework

    Next Generation Template / Theme Framework

    Develop CMS themes quickly and efficiently while providing flexibility and ease of use for end-users. Gantry was born when the RocketTheme development team wanted to consolidate our extensive set of custom Grav, Joomla and WordPress theme functionality into a simple, easy-to-use framework. Yes, that’s right! Gantry 5 has a powerful and easy-to-use Layout Manager that ensures controlling the layout is a highly visual experience. When we started the Gantry 5 project, we wanted to think past the concept of Gantry as a framework. We wanted to create something so versatile and powerful, that it could stand on its own as a platform, virtually independent of a CMS in concept and implementation. Utilizing a dual MIT & GPL license, Gantry is free to use pretty much anywhere! Designed from the ground-up with performance and efficiency in mind. Configure and structure your menu hierarchy with our new Menu editor.
    Downloads: 4 This Week
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  • 14
    Ionic

    Ionic

    Build amazing Native and Progressive Web Apps with web technologies

    Ionic is an open source mobile app development framework based on Web components that makes it easy to build fast, top quality native and progressive web apps. It uses web technologies that significantly improve design, performance and usability.
    Downloads: 4 This Week
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  • 15
    Lightning Web Components

    Lightning Web Components

    A Blazing Fast, Enterprise-Grade Web Components Foundation

    Lean, lightweight runtime optimized for performance, with minimal boilerplate code. Lightning Web Components uses standard HTML, modern JavaScript (ES6+), and the best of native Web Components. Leave abstractions behind and build custom elements with HTML, JavaScript, and CSS. Lightning web components are custom elements built using HTML and modern JavaScript. Ready to learn more? Check out the Developer Guide and write code in the Playground. You’ll be up and running in no time. Create fast, versatile web components and apps using the stack and tools your team prefers. Shape the framework through your pull requests and help push native Web Components forward. Use the latest web standards to build robust components that run in modern browsers and IE 11. Follow the instructions in your terminal. For Select a type of project, choose Single Page App and choose LWC as the variant.
    Downloads: 4 This Week
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  • 16
    Micro App

    Micro App

    A simple, efficient and powerful micro front-end framework

    Micro-app is a web component-based micro-frontend framework from JD Retail. It enables sandboxed embedding of independent micro-apps into host pages, with automatic JS/style isolation, element segregation, preloading, and inter-app communication—all independent of framework. Provides plugin architecture and works across any frontend tech stack.
    Downloads: 4 This Week
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  • 17
    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: 4 This Week
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  • 18
    Tracing Framework

    Tracing Framework

    Web Tracing Framework libraries and extensions

    The Web Tracing Framework (WTF) is an open source suite of tools, libraries, and visualizers created by Google to help developers analyze and optimize the performance of complex web applications. By adding lightweight instrumentation to their code, developers can trace execution flow, identify bottlenecks, and detect performance regressions. The framework provides fine-grained insights into application behavior, making it particularly useful for achieving smooth, high-performance experiences, such as maintaining 60fps animations in web interfaces. It includes visualization tools that allow for detailed analysis of timing, resource usage, and event flow, enabling developers to diagnose and fix inefficiencies effectively. While still experimental, WTF is designed to be extensible and community-driven, encouraging contributions and adaptations for various types of web applications.
    Downloads: 4 This Week
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  • 19
    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: 4 This Week
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  • 20
    bootstrap-select

    bootstrap-select

    The jQuery plugin that brings select elements into the 21st century

    The jQuery plugin that brings select elements into the 21st century with intuitive multiselection, searching, and much more. Now with Bootstrap 4 support. Bootstrap-select requires jQuery v1.9.1+, Bootstrap’s dropdown.js component, and Bootstrap's CSS. If you're not already using Bootstrap in your project, a precompiled version of the Bootstrap v3.4.1 minimum requirements can be downloaded. If using bootstrap-select with Bootstrap v4+, you'll also need Popper.js. For all of Bootstrap v4's requirements, see Getting started. A precompiled version of the requirements will be made available in an upcoming release of bootstrap-select. Bootstrap 4 only works with bootstrap-select v1.13.0+. By default, bootstrap-select automatically detects the version of Bootstrap being used. However, there are some instances where the version detection won't work.
    Downloads: 4 This Week
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  • 21
    serverless-express

    serverless-express

    Run Express and other Node.js frameworks on AWS Serverless

    Serverless Express is a framework for deploying Express.js applications on AWS Lambda and other serverless environments, enabling efficient, scalable web applications without managing infrastructure.
    Downloads: 4 This Week
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  • 22
    Bilibili Helper

    Bilibili Helper

    Auxiliary tool that can replace the player, push notifications, etc.

    Bilibili (bilibili.com) Auxiliary tool that can replace the player, push notifications and perform some shortcut operations. Bilibili (bilibili.com) is an auxiliary tool that can download videos, query the sender of the barrage, and some very useful live broadcast area functions. An auxiliary extension for Bilibili (bilibili.com) which allows users to bypass playback restrictions, replace video players and use shortcuts. Starting from a certain version, Bilibili Assistant uses special technical methods to realize the unlocking function of regional restrictions. It was known to only be able to re-fix the feature via a proxy method, but the cost was prohibitive and we decided not to maintain the feature anymore. Please use an extension that specializes in this type of service, such as unblock youku.
    Downloads: 3 This Week
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  • 23
    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: 3 This Week
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  • 24
    MJML 4

    MJML 4

    The only framework that makes responsive-email easy

    MJML is a markup language created by Mailjet and designed to reduce the pain of coding a responsive email. Its semantic syntax makes the language easy and straightforward while its rich standard components library shortens your development time and lightens your email codebase. MJML’s open-source engine takes care of translating the MJML you wrote into responsive HTML.
    Downloads: 3 This Week
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  • 25
    Node.js Telegram Bot API

    Node.js Telegram Bot API

    Telegram Bot API for NodeJS

    TelegramBot is an EventEmitter that emits several events. Message, received a new incoming Message of any kind. Depending on the properties of the Message, one of these events may ALSO be emitted, text, audio, document, photo, sticker, video, voice, contact, location, new_chat_members, left_chat_member, new_chat_title, new_chat_photo, delete_chat_photo, group_chat_created, game, pinned_message, poll, dice, migrate_from_chat_id, migrate_to_chat_id, channel_chat_created, supergroup_chat_created, successful_payment, invoice, video_note, etc. Its much better to listen a specific event rather than on message in order to stay safe from the content. Bot must be enabled on inline mode for receive some messages.T elegram only supports HTTPS connections to WebHooks. Therefore, in order to set a WebHook, you will need a SSL certificate. The library makes it easy to get started sending files. By default, you may provide a file-path and the library will handle reading it for you.
    Downloads: 3 This Week
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