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.

  • Create and manage the email signature you need Icon
    Create and manage the email signature you need

    For companies and organizations that need an email signature solution

    With WiseStamp it’s easy to unify your brand and turn your emails into a powerful marketing tool. Get the most out of your emails with a professionally designed custom email signature.
    Learn More
  • Optimize every aspect of hiring with Greenhouse Recruiting Icon
    Optimize every aspect of hiring with Greenhouse Recruiting

    Hire for what’s next.

    What’s next for many of us is changing. Your company’s ability to hire great talent is as important as ever – so you’ll be ready for whatever’s ahead. Whether you need to scale your team quickly or improve your hiring process, Greenhouse gives you the right technology, know-how and support to take on what’s next.
    Learn More
  • 1
    paste

    paste

    Simple Node.js pastebin

    Simple Node.js pastebin built with Koa, MongoDB, Pug, Bootstrap and Prism.js.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 2
    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: 5 This Week
    Last Update:
    See Project
  • 3
    Akairo

    Akairo

    A bot framework for Discord.js

    discord-akairo is a powerful and flexible bot framework for discord.js. It allows bot creators absolute freedom in their creativity while taking care of the boilerplate and dirty work.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 4
    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: 4 This Week
    Last Update:
    See Project
  • Run applications fast and securely in a fully managed environment Icon
    Run applications fast and securely in a fully managed environment

    Cloud Run is a fully-managed compute platform that lets you run your code in a container directly on top of Google's scalable infrastructure.

    Run frontend and backend services, batch jobs, deploy websites and applications, and queue processing workloads without the need to manage infrastructure.
    Try for free
  • 5
    Coinbase Pro

    Coinbase Pro

    The official Node.js library for Coinbase Pro

    Note: The gdax package is deprecated and might have to be removed from NPM. Please migrate to the coinbase-pro package to ensure future compatibility. Easy functionality to use in programmatic trading. A customizable, websocket-synced Order Book implementation. API clients with convenient methods for every API endpoint. Abstracted interfaces, don't worry about HMAC signing or JSON formatting; the library does it for you. To use optional parameters with callbacks, supply the options as the first parameter(s) and the callback as the last parameter.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 6
    Egg

    Egg

    Born to build better enterprise frameworks and apps with Node.js

    Born to build. Better enterprise frameworks and apps with Node.js & Koa. Born to build better enterprise frameworks and apps. Based on open-source ecology, customized for ant-ecology, can be integrated to backend middleware in one minute, supporting multiple deployment environments. Progressive development, smooth learning curve, one-stop development kit, supporting your whole process of development. With high-quality, complete tests, and built-in security policy, withstood the largest amount of traffic like Double 11 Promotion. Convention over configuration, highly flexible customization, industry-leading plugin systems, and upper-layer business-specific framework systems.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 7
    Electron Egg

    Electron Egg

    Cross platform, enterprise desktop software development frameworks

    A framework for building modern Electron applications using Egg.js, enabling structured and scalable backend logic in desktop apps.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 8
    Ember.js

    Ember.js

    A JavaScript framework for creating ambitious web applications

    Ember.js is a productive, battle-tested JavaScript framework for building ambitious web applications. It's designed to make building web applications a whole lot easier, with everything you need to build rich UIs that work on any device available to you right out of the box. Ember helps keep you at your most productive with its solid CLI, built-in router, fully-featured data access library called Ember Data, and many other great features. Ember also comes with a Glimmer rendering engine, one of the fastest rendering technologies on the market today. Ember has got everything that modern JS has to offer, and if you want more you can always turn to Ember's high-quality, curated community Addons to supercharge your application.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 9
    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: 4 This Week
    Last Update:
    See Project
  • Enterprise-Class Managed File Transfer. Icon
    Enterprise-Class Managed File Transfer.

    For organizations that need to automate secure file transfers to protect sensitive data.

    Diplomat MFT by Coviant Software is a secure, reliable managed file transfer solution designed to simplify and automate SFTP, FTPS, and HTTPS file transfers. Built for seamless integration, Diplomat MFT works across major cloud storage platforms, including AWS S3, Azure Blob, Google Cloud, Oracle Cloud, SharePoint, Dropbox, Box, and more.
    Learn More
  • 10
    G6

    G6

    A Graph Visualization Framework in JavaScript

    G6 is graph visualization engine with simplicity and convenience. Based on the ability to customize, it provides a set of elegant graph visualization solutions and helps developers to build up applications for graph visualization, graph analysis, and graph editor. G6 is a complete graph visualization engine, which focuses on relational data. According to practical business scenarios, we found the top solutions. Well-designed simple, flexible, and extendable interfaces will satisfy your infinite originality. A social network is an important scenario in graph visualization. The relationships become complicated with the development of social networks. Graph visualization and analysis do well in these complex cases.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 11
    GeoNode

    GeoNode

    GeoNode is an open source platform for geospatial data

    GeoNode is a geospatial content management system, a platform for the management and publication of geospatial data. It brings together mature and stable open-source software projects under a consistent and easy-to-use interface allowing non-specialized users to share data and create interactive maps. Data management tools built into GeoNode allow for integrated creation of data, metadata, and map visualization. Each dataset in the system can be shared publicly or restricted to allow access to only specific users. Social features like user profiles and commenting and rating systems allow for the development of communities around each platform to facilitate the use, management, and quality control of the data the GeoNode instance contains. It is also designed to be a flexible platform that software developers can extend, modify or integrate against to meet requirements in their own applications.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 12
    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
    Last Update:
    See Project
  • 13
    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: 4 This Week
    Last Update:
    See Project
  • 14
    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: 4 This Week
    Last Update:
    See Project
  • 15
    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: 4 This Week
    Last Update:
    See Project
  • 16
    Networked-Aframe

    Networked-Aframe

    Web framework for building multi-user virtual reality experiences

    Multi-user VR on the Web. A framework for writing multi-user VR apps in HTML and JS. Built on top of A-Frame. Follow the NAF Getting Started tutorial to build your own example from scratch, including setting up a local server. Networked-Aframe works by syncing entities and their components to connected users. To connect to a room you need to add the networked-scene component to the a-scene element. For an entity to be synced, add the networked component to it. By default the position and rotation components are synced, but if you want to sync other components or child components you need to define a schema. For more advanced control over the network messages see the sections on Broadcasting Custom Messages and Options. Create an instance of a template to be synced across clients. The position and rotation will be synced by default. The buffered-interpolation is added to allow for less network updates while keeping smooth motion.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 17
    RuoYi

    RuoYi

    The warehouse's SpringBoot-based rights management system

    The warehouse's SpringBoot-based rights management system is easy to read and understand, and the interface is simple and beautiful. The core technology uses Spring, MyBatis, and Shiro without any other heavy dependencies. I have always wanted to make a background management system, and I have seen many excellent open source projects but found no suitable ones. So I started to write a background system in my spare time. So there is Zoe. She can be used for all web applications, such as website management background, website member center, CMS, CRM, OA. All front-end and back-end codes are very compact and easy to use after encapsulation, and the probability of errors is low. Also supports mobile client access. The system will continue to update some useful functions. The user is the system operator, and this function mainly completes the system user configuration. Configure the system organization (company, department, group).
    Downloads: 4 This Week
    Last Update:
    See Project
  • 18
    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: 4 This Week
    Last Update:
    See Project
  • 19
    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: 4 This Week
    Last Update:
    See Project
  • 20
    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
    Last Update:
    See Project
  • 21
    chai

    chai

    BDD / TDD assertion framework for node.js

    Chai is a BDD / TDD assertion library for node and the browser that can be delightfully paired with any javascript testing framework. Chai has several interfaces that allow the developer to choose the most comfortable. The chain-capable BDD styles provide an expressive language & readable style, while the TDD assert style provides a more classical feel. Plugins extend Chai's assertions to new contexts such as vendor integration & object construction. Developers can build their own plugins to share with community or use the plugin pattern to DRY up existing tests. You can also use it within the browser; install via npm and use the chai.js file found within the download. Browse our growing directory of custom plugins & vendor integrations to find the best tool for your needs. Chai has an extensive utility belt for plugin developers. Learn how to build your plugins & share.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 22
    cls-rtracer

    cls-rtracer

    CLS-based request id generation for Express, Fastify, Koa and Hapi

    Express & Koa middlewares and Fastify & Hapi plugins for CLS-based request ID generation, batteries included. An out-of-the-box solution for adding request IDs into your logs. Check out this blog post that describes the rationale behind cls-rtracer. Automatically generates a UUID V1 value as the id for each request and stores it in AsyncLocalStorage. Optionally, if the request contains an X-Request-Id header, uses its value instead. Allows to obtain the generated request id anywhere in your routes later and use it for logging or any other purposes.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 23
    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: 4 This Week
    Last Update:
    See Project
  • 24
    goober

    goober

    A less than 1KB css-in-js solution

    As the subtitle notes, this is the smallest and fullest featured css-in-js solution out there. Weighing at 1KB and once bundled it's gonna be less due to tree-shake. goober does more with less! Since the code measure less in size, it's served, read and ran quicker. goober is built on the shoulders of well-established solutions. That means the API has been paved and we need to follow it. You'll find as, forwarded, CSS, keyframes, styled and so much more. Easily access your common sizes, colors, and anything really with the use of a theme. On the server, you can easily extract the CSS for the current state with extractCss. The initial thought of goober was a CSS-in-js solution at the cost of peanuts. Hence the peanuts emoji. By using goober, you are practically getting back space in size to build more of the needed features.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 25
    google-translate-api

    google-translate-api

    A free and unlimited API for Google Translate

    A free and unlimited API for Google Translate. The language in which the text should be translated. Must be one of the codes/names (not case sensitive) contained in languages.js. Auto language detection, spelling correction, language correction. Fast and reliable – it uses the same servers that translate.google.com uses.
    Downloads: 4 This Week
    Last Update:
    See Project
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