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.

  • MaintainX is the world-leading mobile-first workflow management platform for industrial and frontline workers. Icon
    MaintainX is the world-leading mobile-first workflow management platform for industrial and frontline workers.

    Trusted by Operational Leaders Across the Globe

    Your day-to-day maintenance tasks, simplified. MaintainX eliminates the paperwork, so you can spend less time on your clipboard and more time getting things done.
    Learn More
  • Atera IT Autopilot Icon
    Atera IT Autopilot

    Ensure operational efficiency at any scale with 24/7 autonomous IT support.

    IT Autopilot takes the pressure off your team by handling first-tier support across the channels your end users already live in — email, chat, Slack, Teams, and your Customer Portal. It doesn’t just respond to end-user queries, issues, and crises — it solves them.
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  • 1
    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: 11 This Week
    Last Update:
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  • 2
    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: 11 This Week
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  • 3
    Alpine.js

    Alpine.js

    A rugged, minimal framework for composing JavaScript behavior

    Alpine.js is a lightweight JavaScript framework designed to bring declarative, reactive behavior directly into HTML markup, functioning similarly in spirit to Vue but with a much smaller footprint. It’s often described as “jQuery for the modern web,” enabling you to sprinkle interactivity onto static HTML without needing a full SPA framework. You use directives like x-data, x-bind, x-on, x-if, and others to attach reactive state, event listeners, and conditional rendering straight in the DOM. Because Alpine is so minimal, it avoids virtual DOM overhead and focuses on being incremental and composable; you can use it for small interactive components inside traditional server-rendered pages. The project has grown a robust ecosystem (plugins, devtools, helper libraries) as people adopt it for micro-frontend patterns, admin panels, interactive widgets, and anything that benefits from having bits of reactivity without a heavy JavaScript framework.
    Downloads: 10 This Week
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  • 4
    Cloud Commander

    Cloud Commander

    Cloud Commander file manager for the web with console and editor

    Cloud Commander is a file manager for the web. It includes a command-line console and a text editor. Cloud Commander helps you manage your server and work with files, directories and programs in a web browser from any computer, mobile or tablet. Can be used local or remotely. Adapts to screen size. 3 built-in editors with support of syntax highlighting: Dword, Edward and Deepword. Console with support of the default OS command line. Written in JavaScript/Node.js. Built-in archives pack: zip and tar.gz. Built-in archives extract: zip, tar, gz, bz2, .tar.gz and .tar.bz2 (with help of inly). Cloud Commander could be used as middleware for node.js applications based on socket.io and express. The docker images are provided for multiple architectures and types. Config would be read from home directory, hosts root file system would be mount to /mnt/fs, 8000 port would be exposed to hosts port.
    Downloads: 10 This Week
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  • Enterprise AI Agents for Every Customer Moment Icon
    Enterprise AI Agents for Every Customer Moment

    For enterprise companies looking for AI Agents

    From chat to voice to SMS, every conversation gets a smart, personalized response powered by your policies, tone, and data.
    Learn More
  • 5
    Open MCT

    Open MCT

    A web based mission control framework

    Open MCT is a next-generation mission operations data visualization framework. Web-based, for desktop and mobile. Software based on Open MCT is in use as a data visualization tool in support of multiple missions at the Jet Propulsion Laboratory, and at NASA's Ames Research Center to support the development of lunar rover mission concepts. Open MCT can be adapted for planning and operations of any system that produces telemetry. While Open MCT is developed to support space missions, its core concepts are not unique to that domain. It can display streaming and historical data, imagery, timelines, procedures, and other data visualizations, all in one place. Open MCT is currently used to support distributed spacecraft operations across multiple locations. NASA itself has many missions currently using Open MCT as well as "VISTA", which is a multi-mission operations system built with Open MCT.
    Downloads: 10 This Week
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  • 6
    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: 9 This Week
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  • 7
    Fabric.js

    Fabric.js

    Javascript Canvas Library and SVG-to-Canvas Parser

    Fabric.js is a simple yet powerful Javascript HTML5 canvas library that allows you to easily work with HTML5 canvas element in various ways. It is also an SVG-to-canvas (and vice versa) parser. Fabric provides an interactive object model on top of canvas element, so you can create and populate objects on canvas; manipulate the size, position and rotation of these objects; modify properties such as color, transparency and more. You could also group these objects together with just a simple mouse selection. Fabric offers support for touch devices, as well as Node.js support. It currently supports the following browsers: Firefox 2+, Safari 3+, Opera 9.64+, Chrome (all versions), IE10, IE11, and Edge.
    Downloads: 9 This Week
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  • 8
    MaterializeCSS

    MaterializeCSS

    Materialize, a CSS Framework based on Material Design

    A modern responsive front-end framework based on Material Design. We did most of the heavy lifting for you to provide a default stylings that incorporate our custom components. Additionally, we refined animations and transitions to provide a smoother experience for developers. By utilizing elements and principles of Material Design, we were able to create a framework that incorporates components and animations that provide more feedback to users. Additionally, a single underlying responsive system across all platforms allow for a more unified user experience. We have provided detailed documentation as well as specific code examples to help new users get started. We are also always open to feedback and can answer any questions a user may have about Materialize.
    Downloads: 9 This Week
    Last Update:
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  • 9
    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: 9 This Week
    Last Update:
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  • The most trusted software in construction Icon
    The most trusted software in construction

    HCSS is the gold standard software solution for winning, planning, and managing construction projects by connecting the office to the field.

    HCSS provides easy-to-use software built for construction companies that want to win more work, work smarter, and boost profits. For nearly 40 years, we've helped heavy civil contractors, infrastructure builders, and utility companies improve operations, from estimating and project management to field tracking, equipment maintenance, and safety. Tools like HeavyBid, HeavyJob, and HCSS Safety are built for the field and designed to work together, giving your team real-time visibility, tighter cost control, and better job outcomes. With 45+ accounting integrations and customizable APIs, HCSS fits seamlessly into your tech stack. We regularly update our software based on feedback from real crews, ensuring it fits the way your team works. Backed by award-winning 24/7/365 support and a proven implementation process, HCSS helps reduce risk, cut inefficiencies, and deliver fast ROI. If you're ready to grow your business and gain a competitive edge, HCSS is the partner that gets you there.
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  • 10
    Mineflayer

    Mineflayer

    Create Minecraft bots with a powerful and high level JavaScript API

    Create Minecraft bots with a powerful, stable, and high-level JavaScript API, also usable from Python. First time using Node.js? You may want to start with the tutorial. Know Python? Check out some Python examples and try out Mineflayer on Google Colab. Supports Minecraft 1.8, 1.9, 1.10, 1.11, 1.12, 1.13, 1.14, 1.15, 1.16, 1.17 and 1.18. Block knowledge. You can query the world around you. Milliseconds to find any block. Miscellaneous stuff such as knowing your health and whether it is raining. Parse and serialize Minecraft packets, plus authentication and encryption. Language independent module providing Minecraft data for Minecraft clients, servers, and libraries. Node.js library to interact with Mojang's authentication system, known as Yggdrasil. Represent a Minecraft biome with its associated data. Mineflayer is pluggable; anyone can create a plugin that adds an even higher level API on top of Mineflayer.
    Downloads: 9 This Week
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  • 11
    OneNav

    OneNav

    Bookmark and navigation management system

    OneNav is a self-hosted bookmark and navigation management system designed to organize and categorize personal or team bookmarks efficiently. It features a responsive web interface, making it easy to access bookmarks from any device. OneNav is highly customizable, allowing users to create categories, add descriptions, and manage links with ease, making it ideal for personal use or as a team resource.
    Downloads: 9 This Week
    Last Update:
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  • 12
    SAN

    SAN

    A fast, portable, flexible JavaScript component framework

    Declarative template. HTML conformant template makes it easier for HTML developers. The DOM will be updated accordingly by the view engine upon any data modification. Free yourself from trivial and error-prone DOM APIs. A component is a combination of data, logic and view. Feature blocks, from a single input combination to a whole page, can be built via San components. By modifying the data, the view engine can directly refresh the view area that needs to be changed without any detection and better performance. Optimized for the first screen and output HTML from the server-side. Reverse parse components from existing elements and build bindings. Volume less that 17kb (gzipped), no need to worry about the burden of page downloads. The gospel of patients with volume obsessive. The ESNext Module or AMD can be selected in the project. Of course, if you want to use global variables it is also supported.
    Downloads: 9 This Week
    Last Update:
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  • 13
    Stisla

    Stisla

    Free Bootstrap Admin Template

    Stisla will help you to speed up your project, and design your own dashboard UI and the users will love it. Integrated with 30+ third-party libraries and has many components, you will easily to create a dashboard layout. Don't worry about the gadget you have. Stisla is very suitable for every platform. Written with HTML5 and CSS3 and supported by most modern browsers. We provide some javascript APIs to interact with some components more easily. All HTML pages are free of errors, because they have been verified by W3C. Based on Bootstrap 4, one of the popular flexbox frameworks. We don't want to talk much about this template, try it yourself and don't say anything. Your idea has other things that need to be prioritized, don't waste your time only on the dashboard design. Stisla will speed up your project to design a clean dashboard interface. Some components have JavaScript APIs to interact with.
    Downloads: 9 This Week
    Last Update:
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  • 14
    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: 9 This Week
    Last Update:
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  • 15
    Web Experience Toolkit

    Web Experience Toolkit

    Open source code library for building innovative websites

    Web Experience Toolkit (WET): Open source code library for building innovative websites that are accessible, usable, interoperable, mobile-friendly and multilingual. This collaborative open source project is led by the Government of Canada. A collection of flexible and themeable templates and reusable components. A collaborative open source project led by the Government of Canada. HTML5-first approach (leveraging native HTML5 support and filling support gaps with “polyfills”) Supporting a wide variety of browsers (IE, Firefox, Chrome, Safari, Opera) Building support for HTML data (RDFa 1.1 Lite, Schema.org) Adapts to different screen sizes and device capabilities. Touchscreen support. Optimized for performance. Building support for device-based mobile applications.
    Downloads: 9 This Week
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  • 16
    egg-core

    egg-core

    A core Pluggable framework based on koa

    A core Pluggable framework based on koa. EggLoader can easily load files or directories in your egg project. In addition, you can customize the loader with low-level APIs. Retrieve application environment variable values via serverEnv. You can access it directly by calling this.serverEnv after instantiation. To get directories of the frameworks. A new framework is created by extending egg, then you can use this function to get all frameworks.
    Downloads: 9 This Week
    Last Update:
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  • 17
    turretcss

    turretcss

    Turret is a styles and browser behaviour normalisation framework

    Developed for design, turretcss is a styles and browser behavior normalization framework for the rapid development of responsive and accessible websites. Newly added features include: increasing the size scale, adding sizes for display title and lead, generic group styles, and box-shadow utility classes. Added utility classes for the cursor property. A generic group behavior to align and space between like items within lists. Globally set box shadows with size variants to set on any element easily with utility classes. PostCSS with postcss-preset-env to write tomorrow's CSS spec today with the polyfills you need. Designed for speed turretcss is designed to make responsive, accessible, and scalable CSS development simple, and predictable. Write clean, simple, and modern HTML & CSS with intuitive size and style utilities with PostCSS and postcss-preset-env.
    Downloads: 9 This Week
    Last Update:
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  • 18
    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: 8 This Week
    Last Update:
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  • 19
    Advanced REST Client application

    Advanced REST Client application

    Advanced REST Client - Desktop application

    This is the main repository for the ARC Electron application. If you are still using Chrome plug-in then proceed to move From Chrome To the Desktop Client section. The original Chrome application is discontinued as Chrome stopped supporting browser-based applications. ARC was built as an open-source and free for everyone API tool out of a passion for giving the developer community tools they need. The application and related projects (like API Console) are created and distributed to our users for free. Our vision is that API tools are available for every developer and organization, regardless of their size, for free and without forced relationship. API tools are using open standards to communicate with other applications so developers can build integrations. Originally the application was created by the author for own convenience while developing APIs. It quickly turned out to be a common problem among developers to consume APIs during the development process.
    Downloads: 8 This Week
    Last Update:
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  • 20
    ButterCMS JS client

    ButterCMS JS client

    Node/JS API client for ButterCMS

    A seamless CMS with a blazing fast API and marketing dashboard. Stop wasting dev time and free your marketers from your legacy CMS.
    Downloads: 8 This Week
    Last Update:
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  • 21
    Cabin

    Cabin

    Cabin is the best JavaScript and Node.js logging service and logging

    Cabin is the best JavaScript and Node.js logging service and logging npm package. Cabin is a drop-in replacement and the best alternative to Sentry, Timber, Airbrake, Papertrail, Loggly, Bugsnag, etc. Cabin will automatically detect and mask the following list of extremely sensitive types of data in your logs. Reduce your disk storage costs through Cabin's automatic conversion of Streams, Buffers, and ArrayBuffers to simplified, descriptive-only objects that otherwise would be unreadable (and obviously pollute your log files and disk storage). Cabin works with the most popular Node.js HTTP frameworks (e.g. Express and Koa), request body handling packages (e.g. multer and body-parser), and the passport authentication framework. It supports Node v6.4+ and IE 10+ out of the box, and its browser-ready bundle is only 39 KB (minified and gzipped).
    Downloads: 8 This Week
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  • 22
    Claudia Bot Builder

    Claudia Bot Builder

    Create chat bots for Facebook Messenger, Slack, Amazon Alexa, etc.

    Claudia Bot Builder helps developers create and deploy chat-bots for various platforms in minutes to AWS Lambda. It simplifies the messaging workflows, automatically sets up the correct web hooks, and guides you through configuration steps, so that you can focus on important business problems and not have to worry about infrastructure code. This code is enough to operate bots for all supported platforms. Claudia Bot Builder automatically parses the incoming messages into a common format, so you can handle it easily. It also automatically packages the response into the correct message template for the requesting bot, so you do not have to worry about individual bot protocols. Claudia Bot Builder doesn't have a stand-alone http server in the background (such as Express, Hapi, etc.), instead it uses API Gateway and it's not trivial to simulate similar environment locally. Deploy it with --version test to create a separate test environment directly in AWS Lambda.
    Downloads: 8 This Week
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  • 23
    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: 8 This Week
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  • 24
    Hubot

    Hubot

    A customizable life embetterment robot

    Hubot is a framework to build a custom chat bot, first built by GitHub, Inc. to automate their company chat room. Hubot gives you a very nice base for building your very own robot friend. Hubot comes with a small group of core scripts, including things like posting images, translating languages, and integrating with Google Maps. It's extendable with many other scripts, which make Hubot all the more personalized to fit your organization's needs and culture. Hubot can work on many different chat services, including third-party adapters Gitter, IRC, Slack and more. Build your own personalized chat bot with Hubot!
    Downloads: 8 This Week
    Last Update:
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  • 25
    Pico.css

    Pico.css

    Minimal CSS Framework for semantic HTML

    Minimal CSS Framework for semantic HTML. Elegant styles for all native HTML elements without .classes and dark mode automatically enabled. Pico uses simple native HTML tags as much as possible. Less than 10 .classes are used in Pico. No dependencies, package manager, external files, or JavaScript. Elegant and consistent adaptive spacings and typography on all devices. Shipped with two beautiful color themes, automatically enabled according to the user preference. We use simple native HTML tags as much as possible. Less than 10 .classes are used in Pico. No dependencies, package manager, external files, or JavaScript. Elegant and consistent adaptive spacings and typography on all devices. Shipped with two beautiful color themes, automatically enabled according to the user preference. A classic company or blog layout with a sidebar. A simple layout for Google Amp, with inlined CSS.
    Downloads: 8 This Week
    Last Update:
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