Browse free open source JavaScript Libraries and projects below. Use the toggles on the left to filter open source JavaScript Libraries by OS, license, language, programming language, and project status.

  • Time tracking software for the global workforce Icon
    Time tracking software for the global workforce

    Teams of all sizes and in various industries that want the best time tracking and employee monitoring solution.

    It's easy with Hubstaff, a time-tracking and workforce management platform that automates almost every aspect of running or growing a business. Teams can track time to projects and to-dos using Hubstaff's desktop, web, or mobile applications. You'll be able to see how much time your team spends on different tasks, plus productivity metrics like activity rates and app usage through Hubstaff's online dashboard. Most of the available features are customizable on a per-user basis, so you can create the team management tool you need.
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  • AI Powered Global HCM for the Evolving World of Work Icon
    AI Powered Global HCM for the Evolving World of Work

    For Start-ups, SME's, Large Enterprise

    Darwinbox is a new-age & disruptive mobile-first, cloud-based HRMS platform built for the large enterprises to attract, engage and nurture their most critical resource - talent. It is an end-to-end integrated HR system that aids in streamlining activities across the employee lifecycle (Hire to Retire). Our powerful enterprise product features are built with a clear focus on intuitiveness and scalability, with standards of best in class consumer apps. Darwinbox’s motto is to engage, empower, and inspire employees on one side in addition to automating and simplifying all HR processes for the enterprise on the other. Over 350+ leading enterprises with 850k users manage their entire employee lifecycle on this unified platform.
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  • 1
    Eris

    Eris

    A NodeJS Discord library

    A Node.js wrapper for interfacing with Discord. You will need NodeJS 10.4+. If you need voice support you will also need Python 2.7 and a C++ compiler. Create a directory for your bot, and change to that directory in your command line. If you want to be more updated (at the expense of stability), you can install the beta builds instead. Eris supports a few optional libraries that could potentially improve bot performance but may require additional dependencies. If you want Eris to use any of these packages, install them in the same directory as Eris, and Eris will automatically use them. You can find more examples on the GitHub repo. The rest of the docs will help you with using the various functions of the library. Have fun!
    Downloads: 1 This Week
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  • 2
    Exifr

    Exifr

    The fastest and most versatile JS EXIF reading library

    Exifr is a fast and very versatile JavaScript EXIF reading library that works everywhere, parses everything and handles just about anything you throw at it. It can handle any input: buffers, url, <img> tag and more; .jpg, .tif, and .heic files; and TIFF (EXIF, GPS, etc.), XMP, ICC, IPTC, JFIF segments. It skips parsing tags you don’t need, and reads only the first few bytes. There’s no need to read the whole file to see if there’s an EXIF file in it, or extract all the data when you just need a few tags. Instead of reading byte by byte from start to finish, Exifr jumps through the file structure from pointer to pointer, making it extremely fast and efficient!
    Downloads: 1 This Week
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  • 3
    FKit

    FKit

    A functional programming toolkit for JavaScript

    FKit (pronounced eff-kit) is a functional programming toolkit for JavaScript. It provides many functions for solving common problems with functions, objects, arrays, and strings. It aims to provide reusable building blocks while maintaining a laser focus on everyday utility.
    Downloads: 1 This Week
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  • 4
    FancyGrid

    FancyGrid

    JavaScript grid library with charts integration & server communication

    JavaScript grid library with charts integration and server communication. Massive number of features, Paging, Sorting, Filtering, Validation, Ajax data, Files data, RESTful, flexible CRUD, Integration with charts, Form module, Theming, Touch Support, and others. FancyGrid is integrated(data binding) with chart libraries, HighCharts, and sparklines. Intelligent modules system auto-detects and loads needed modules. Good Documentation, Elegant API, Number of Samples, and Professional Support.
    Downloads: 1 This Week
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  • The CI/CD Platform built for Mobile DevOps Icon
    The CI/CD Platform built for Mobile DevOps

    For mobile app developers interested in a powerful CI/CD platform for mobile app development and mobile DevOps

    Save time, money, and developer frustration with fast, flexible, and scalable mobile CI/CD that just works. Whether you swear by native or would rather go cross-platform, we have you covered. From Swift to Objective-C, Java to Kotlin, as well as Xamarin, Cordova, Ionic, React Native, and Flutter: Whatever you choose, we will automatically configure your initial workflows and have you building in minutes.
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  • 5
    FastClick

    FastClick

    Easy-to-use library to remove click delays on browsers with touch UIs

    FastClick is a simple, easy-to-use library for eliminating the 300ms delay between a physical tap and the firing of a click event on mobile browsers. The aim is to make your application feel less laggy and more responsive while avoiding any interference with your current logic. FastClick is developed by FT Labs, part of the Financial Times. Note: As of late 2015 most mobile browsers - notably Chrome and Safari - no longer have a 300ms touch delay, so fastclick offers no benefit on newer browsers, and risks introducing bugs into your application. Consider carefully whether you really need to use it. The library has been deployed as part of the FT Web App. FastClick doesn't attach any listeners on desktop browsers.
    Downloads: 1 This Week
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  • 6
    Float UI

    Float UI

    Beautiful and responsive UI components and templates

    Float UI is an open-source collection of modern UI components and website templates built primarily for React, with planned support for Vue, designed to help developers rapidly build visually polished and responsive web applications. It combines Tailwind CSS with carefully crafted design patterns to deliver components that are both aesthetically appealing and production-ready. The project includes a wide variety of reusable UI elements and complete templates, such as landing pages, dashboards, and navigation layouts, allowing developers to bootstrap projects quickly. One of its strengths is its focus on simplicity and accessibility, providing ready-made solutions that can be easily customized without complex configuration. Float UI supports both left-to-right and right-to-left layouts, making it suitable for international applications. It is actively maintained and continuously expanded, with new components and templates added over time.
    Downloads: 1 This Week
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  • 7
    Flummox

    Flummox

    Minimal, isomorphic Flux

    The Flummox project is a Flux implementation designed to provide a more modular, testable, and isomorphic approach to application state management in React environments. It rethinks traditional Flux architecture by eliminating the need for singletons and encouraging explicit dependency injection, making applications easier to test and reason about. The framework is built with modern JavaScript features and emphasizes clear separation of concerns between actions, stores, and components. It supports both client-side and server-side rendering, making it suitable for universal or isomorphic applications. Flummox also promotes a more structured and scalable approach to managing application state compared to earlier Flux implementations. By focusing on modularity and composability, it enables developers to build maintainable and flexible architectures. Overall, flummox represents an evolution of the Flux pattern toward better developer ergonomics and testability.
    Downloads: 1 This Week
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  • 8
    Fotorama source

    Fotorama source

    A simple, stunning, powerful jQuery gallery

    Our platform is designed to make it easy for businesses, marketers, and individuals to create stunning visual content, such as graphics, images, and videos. We understand the importance of visual content in today's digital world and we are committed to providing our users with the tools they need to stand out from the crowd. With Fotorama.io, you can create professional-quality visual content without any prior design experience. Our user-friendly interface and drag-and-drop functionality make it easy to create eye-catching graphics, images, and videos in just a few clicks. To make the choice quickly and safely, it is recommended to pay attention to the rating Casinos online Russia. This is a special platform, which presents players to make a choice from a list of all available casinos to play. Each user can view a detailed description of each site and make the appropriate choice.
    Downloads: 1 This Week
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  • 9
    Gantt-elastic - Javascript Gantt Chart

    Gantt-elastic - Javascript Gantt Chart

    Gantt Chart [ javascript gantt chart, gantt component, vue gantt)

    Gantt Chart, JavaScript Gantt chart, Gantt component, vue Gantt, vue Gantt chart, responsive Gantt, project manager, vue projects.
    Downloads: 1 This Week
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  • Create stunning, professional email signatures in minutes Icon
    Create stunning, professional email signatures in minutes

    For companies looking to create, assign and manage all their employees email signatures and add targeted marketing banners.

    Create, assign and manage all your employees’ email signatures and add targeted marketing banners. Stop getting worked up about your signatures! Leverage a centralized interface to easily create and manage the email signatures of all your employees. Take advantage of each email to broadcast and amplify your brand. Letsignit helps you regain control over your digital identity. Harmonize 100% of your employee’s email signatures in just a few clicks! 121 professional emails are received and 40 are sent every day by an employee. With Letsignit, turn every email into a powerful communication opportunity: send the right message to the right person at the right time! Innovative more than tech, inspiring more than following. Authentic more than overrated, close more than "think big", trustworthy more than doubtful. Hands-on more than complex, available but yet premium, fun but yet expert.
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  • 10
    Gio.js

    Gio.js

    A declarative 3D globe data visualization library built with Three.js

    Gio.js is an open source library for web 3D globe data visualization built with Three.js. What makes Gio.js different is that it is simple to use Gio.js to customize a 3D data visualization model in a declarative way, add your own data, and integrate it into your own modern web application. Gio.js is an open source library for web 3D globe data visualization built with Three.js. What makes Gio.js different is that it is simple to use Gio.js to customize a 3D data visualization model in a declarative way, add your own data, and integrate it into your own modern web application. This library is inspired by the Arms Trade Visualization project developed by Michael Chang and presented during Google Ideas INFO 2012. See original post. With Gio.js, it is easy to reproduce this fantastic data visualization model, and integrate it into web applications.
    Downloads: 1 This Week
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  • 11
    GoJS

    GoJS

    JavaScript diagramming library for interactive flowcharts & org charts

    Build interactive flowcharts or flow diagrams. Let your users build, modify, and save diagrams with JSON model output. Visualize state charts and other behavior diagrams. Create diagrams with live updates to monitor state, or interactive diagrams for planning. GoJS allows considerable customization of links and nodes to build all kinds of diagrams. Visualize flow, or connect pipes. Create genogram and medical diagrams, or editable family trees with collapsible levels. Create classic org charts for viewing or editing. Automatic layouts make different visualization options easy. Dynamically add ports and custom link routing. Use data-bindings to save and load routes within the Model JSON. Use groups as containers and subgraphs, with group members bound by their own rules and layouts. Model industrial processes, workflows, SCADA diagrams and more.
    Downloads: 1 This Week
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  • 12
    Google Cloud Platform Node.js Samples

    Google Cloud Platform Node.js Samples

    Node.js samples for Google Cloud Platform products

    Google Cloud Platform Node.js Samples repository is a large set of Node.js code examples that demonstrate how to build, deploy, and manage applications using Google Cloud Platform services. It mirrors the structure and purpose of the Python and Go sample repositories, providing developers with practical implementations that complement official documentation. The repository includes examples for a wide variety of services, such as Cloud Run, App Engine, storage systems, and APIs, along with full tutorial applications like the Bookshelf app that showcase end-to-end workflows. Each sample includes setup instructions, dependency installation steps, and execution commands, making it easy for developers to run and modify the code locally. The project also supports modern JavaScript and TypeScript workflows, reflecting current development practices in the Node.js ecosystem.
    Downloads: 1 This Week
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  • 13
    Google Map React

    Google Map React

    Google map library for react that allows rendering components

    Google map library for react that allows rendering components as markers. google-map-react is a component written over a small set of the Google Maps API. It allows you to render any React component on the Google Map. It is fully isomorphic and can render on a server. Additionally, it can render map components in the browser even if the Google Maps API is not loaded. It uses an internal, tweakable hover algorithm - every object on the map can be hovered. It allows you to create interfaces like this example (You can scroll the table, zoom/move the map, hover/click on markers, and click on table rows) In the simple case you just need to add lat and lng props to any child of GoogleMapReact component.
    Downloads: 1 This Week
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  • 14
    HeyUI.ext

    HeyUI.ext

    UI Toolkit for Web, Vue3.0

    HeyUI.ext is a comprehensive UI component library built for Vue.js that provides a wide range of reusable components and tools for developing modern web applications with efficiency and consistency. Designed as a full UI toolkit rather than a minimal component set, it includes elements for forms, tables, modals, navigation, and data handling, making it suitable for building complex interfaces such as dashboards and admin panels. The library emphasizes simplicity and speed, allowing developers to quickly assemble functional interfaces while maintaining scalability as projects grow. It supports modern development workflows through npm installation as well as CDN usage, enabling both lightweight experimentation and full-scale application integration. HeyUI also includes features such as validation, internationalization, and advanced components like trees, selectors, and date pickers, which help streamline common frontend tasks.
    Downloads: 1 This Week
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  • 15
    Hotkeys

    Hotkeys

    A robust Javascript library for capturing keyboard input

    HotKeys.js is an input capture library with some very special features, it is easy to pick up and use, has a reasonable footprint (~3kb) (gzipped: 1.73kb), and has no dependencies. It should not interfere with any JavaScript libraries or frameworks. You will need Node.js installed on your system. Or manually download and link hotkeys.js in your HTML, It can also be downloaded via UNPKG. react-hotkeys is the React component that listen to keydown and keyup keyboard events, defining and dispatching keyboard shortcuts. Detailed use method please see its documentation react-hotkeys. React hook for using keyboard shortcuts in components. Make sure that you have at least version 16.8 of react and react-dom installed, or otherwise hooks won't work for you. The following special keys can be used for shortcuts: backspace, tab, clear, enter, return, esc, escape, space, up, down, left, right, home, end, page up, pagedown, del, delete and f1 through f19.
    Downloads: 1 This Week
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  • 16
    JSVerbalExpressions

    JSVerbalExpressions

    JavaScript Regular expressions made easy

    VerbalExpressions is a JavaScript library that helps to construct difficult regular expressions. Methods have a return type of VerbalExpression except where mentioned otherwise. If there is no mention of a method’s parameters, it is to be assumed that it has none. VerEx is the function that is exported from within VerbalExpressions.js and is to be the first method in chains that describe verbal expressions. Construct and return a new instance of VerbalExpression. Used to support the new VerbalExpression() syntax in ES6 classes as mandated by the spec. You usually wouldn’t need to call VerEx().constructor(). This method will not be accessible from outside the source file since VerEx() returns an instance of the class rather than the class itself. sanitize is a static method on the VerbalExpression class. However, it is also exposed as VerEx().sanitize. Enabling control multi-line matching would cause the expression to not look for matches beyond the first line.
    Downloads: 1 This Week
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  • 17
    Jupyter Nbextensions Configurator

    Jupyter Nbextensions Configurator

    A jupyter notebook serverextension providing config interfaces

    A server extension for jupyter notebook which provides configuration interfaces for notebook extensions (nbextensions). The jupyter_nbextensions_configurator jupyter server extension provides graphical user interfaces for configuring which nbextensions are enabled (load automatically for every notebook). In addition, for nbextensions which include an appropriate yaml descriptor file (see below), the interface also renders their markdown readme files, and provides controls to configure the nbextensions' options.
    Downloads: 1 This Week
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  • 18
    Learning Prompt

    Learning Prompt

    Free prompt engineering online course

    Learning-Prompt is a curated repository of prompts, techniques, and instructional patterns designed to help people construct better prompts for AI systems, including generation, reasoning, and debugging tasks. It collects examples of effective prompt formats, chains of thought, strategy scaffolds, and comparative methods that help yield consistent, high-quality results. The project also includes meta-guidance: reflections on prompt failures, tips for prompt tuning, ways to mitigate model bias or misinterpretation, and how to adapt prompts for different AI capabilities. Because prompt design is a skill under continuous iteration, the repo encourages contributions of new prompt recipes, evaluations, and domain-specific adaptations. It’s intended for educators, developers, and prompt engineers who want a living toolkit rather than static advice. Over time it serves as both a reference and playground for emergent prompt techniques.
    Downloads: 1 This Week
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  • 19
    MEAN

    MEAN

    For simple and scalable fullstack js applications

    The MEAN stack uses Mongo, Express, Angular(6) and Node for simple and scalable fullstack js applications. The mean stack is intended to provide a simple and fun starting point for cloud native fullstack javascript applications. MEAN is a set of Open Source components that together, provide an end-to-end framework for building dynamic web applications; starting from the top (code running in the browser) to the bottom (database). The stack is made up of MongoDB, with document database, used by your back-end application to store its data as JSON (JavaScript Object Notation) documents. Also with Express (sometimes referred to as Express.js), with back-end web application framework running on top of Node.js. As well as Angular (formerly Angular.js), which is a front-end web app framework that runs your JavaScript code in the user's browser, allowing your application UI to be dynamic.
    Downloads: 1 This Week
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  • 20
    NodeGoat

    NodeGoat

    The OWASP NodeGoat project

    A deliberately vulnerable Node.js application designed for security training, helping developers understand common web vulnerabilities and how to mitigate them.
    Downloads: 1 This Week
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  • 21
    Numeral.js

    Numeral.js

    A javascript library for formatting and manipulating numbers

    You can use Numerals in the browser and in Node.js. Create an instance of a numeral, Numeral takes numbers or strings that it trys to convert into a number. Numbers can be formatted to look like currency, percentages, times, or even plain old numbers with decimal places, thousands, and abbreviations. And you can always create a custom format. Set a default format so you can use .format() without a string. The default format to '0,0'. Set a custom output when formatting numerals with a value of 0 or null. Adding your own custom formats is as easy as adding a locale. Numeral.js, while less complex, was inspired by and heavily borrowed from Moment.js Formats now exist in their own files and act more or less as plugins. Check out the bytes format for an example of how to create one. When naming locale files use the ISO 639-1 language codes supplemented by ISO 3166-1 country codes when necessary.
    Downloads: 1 This Week
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  • 22
    OnlineToolsBook

    OnlineToolsBook

    Online tool cheats, write a high-quality manual for online tools

    OnlineToolsBook positions itself as a “manual/handbook” for useful online tools — collating, documenting, and explaining many web-based utilities to help users discover, understand, and effectively use them. Rather than building a single web-tool, this repository serves as a knowledge base: descriptions, guidance, and possibly examples or usage notes about a variety of online tools, organized in a way that’s meant to help “make online tools benefit humanity.” For someone who frequently resorts to ad-hoc web tools to solve tasks (text manipulation, image processing, conversion, utilities), OnlineToolsBook acts as an aggregator of “cheat sheets” or curated pointer collection rather than a specific application. The intention appears to be long-term: the repository can be updated to reflect new tools, remove broken ones, organize categories, or provide usage hints — so it becomes a living, crowd-maintained reference.
    Downloads: 1 This Week
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  • 23
    Phaser 3 Webpack Loader

    Phaser 3 Webpack Loader

    Asset loader for Phaser + Webpack.

    Phaser Webpack Loader is a plugin that streamlines the process of loading game assets in Phaser projects using Webpack. It facilitates parallel asset loading and integrates with Webpack's module system for efficient game development.
    Downloads: 1 This Week
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  • 24
    PrimeReact

    PrimeReact

    The Most Complete React UI Component Library

    Elevate your web applications with PrimeReact's comprehensive suite of customizable, feature-rich UI components. With PrimeReact, turning your development vision into reality has never been easier. The ultimate set of UI Components to assist you with 80+ impressive React Components. Choose from a variety of pre-built themes or implement your design systems with the CSS library of your choice like TailwindCSS. Connect with the other open-source community members, collaborate, and have a voice in the project roadmap. Compliant with the Web Content Accessibility Guidelines (WCAG 2.0). Exceptional support service featuring response within 1 business day and the option to request enhancements and new features for the library. First-class support for responsive design led by touch-optimized elements. 400+ pre-designed copy paste ready UI blocks to build spectacular apps in no time.
    Downloads: 1 This Week
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  • 25
    QuickChart

    QuickChart

    Chart image and QR code web API

    Generate chart images with a simple, open API. Add charts to emails, reports, and anywhere else. Over 3 billion charts are rendered for users around the world. We're built on Chart.js, the most popular open-source charting library. We'll render any Chart.js configuration. Let's get creative! You can use all static customization options available in Chart.js. Visit our chart gallery to see different chart types and plugins: bar charts, line graphs, pie charts, and much more. QuickChart easily integrates with many no-code tools. Use our no-code chart maker to create custom chart templates that you can embed dynamically in spreadsheets, Airtable, Bubble, AppSheet, Thunkable, and many other no-code tools. Rendering at scale is difficult and resource intensive. We've put a lot of working into taking care of the most difficult parts so you can focus on building your application.
    Downloads: 1 This Week
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