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.

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  • 1
    timeago

    timeago

    The original jQuery plugin that makes it easy to support automatically

    Timeago is a jQuery plugin that makes it easy to support automatically updating fuzzy timestamps (e.g. "4 minutes ago" or "about 1 day ago") from ISO 8601 formatted dates and times embedded in your HTML (à la microformats).
    Downloads: 9 This Week
    Last Update:
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  • 2
    ui-neumorphism

    ui-neumorphism

    React component library designed on the "new skeuomorphism"

    UI-metamorphism is a react component library designed on the "new skeuomorphism" UI/UX trend.
    Downloads: 9 This Week
    Last Update:
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  • 3
    Cytoscape.js

    Cytoscape.js

    Graph theory library for visualization and analysis

    A fully featured graph library written in pure JS. Permissive open source license (MIT) for the core Cytoscape.js library and all first-party extensions. Used in commercial projects and open-source projects in production. Designed for users first, for both frontfacing app usecases and developer usecases. Highly optimized. Compatible with All modern browsers. Legacy browsers with ES5 and canvas support. ES5 and canvas support are required, and feature detection is used for optional performance enhancements. Browsers circa 2012 support ES5 fully: IE10, Chrome 23, Firefox 21, Safari 6 (caniuse). Browsers with partial but sufficient ES5 support also work, such as IE9 and Firefox 4. The documentation and examples are not optimized for old browsers, although the library itself is. Some demos may not work in old browsers in order to keep the demo code simple.
    Downloads: 8 This Week
    Last Update:
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  • 4
    DevExtreme

    DevExtreme

    HTML5 JavaScript Component Suite for Responsive Web Development

    DevExtreme is a comprehensive, enterprise-grade JavaScript UI component suite developed by DevExpress, designed to help developers build highly interactive, data-driven web applications across multiple frontend frameworks. It supports major ecosystems such as Angular, React, Vue, and jQuery, allowing teams to maintain consistency while working across different stacks. The library includes more than 80 components covering data grids, charts, schedulers, forms, editors, and navigation elements, making it suitable for complex business applications like dashboards, CRM systems, and SaaS platforms. A key strength of DevExtreme is its built-in data layer, which enables efficient handling of large datasets, real-time updates, and server-side operations such as filtering and sorting. The components are responsive and accessible, ensuring compatibility across devices, screen sizes, and assistive technologies.
    Downloads: 8 This Week
    Last Update:
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  • 5
    Discord.js

    Discord.js

    A powerful JavaScript library for interacting with the Discord API

    discord.js is a powerful Node.js module that allows you to interact with the Discord API very easily. It takes a much more object-oriented approach than most other JS Discord libraries, making your bot's code significantly tidier and easier to comprehend. Usability, consistency, and performance are key focuses of discord.js, and it also has nearly 100% coverage of the Discord API. It receives new Discord features shortly after they arrive in the API.
    Downloads: 8 This Week
    Last Update:
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  • 6
    File Nesting Config for VS Code

    File Nesting Config for VS Code

    Config of File Nesting for VS Code

    This project provides a curated configuration snippet for the file-nesting feature of Visual Studio Code, authored by Anthony Fu (antfu). The goal is to help developers organize large code-bases by collapsing “secondary” or generated files (for example build artifacts, tests, config variants) under their primary files in the Explorer tree. It supports VS Code version 1.67 and above by enabling the built-in "explorer.fileNesting" setting. It is somewhat opinionated, offering a broad list of patterns (for example hiding .env.*, *.freezed.dart, etc) and it also includes an optional VS Code extension to automatically update the nesting config from the repo. Because the snippet is generated via a script (update.mjs), it is maintained for many languages, frameworks, and file types. The benefit is much cleaner project file trees, reduced noise, easier navigation, and less time wasted hunting through duplicate or generated files.
    Downloads: 8 This Week
    Last Update:
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  • 7
    Globby

    Globby

    User-friendly glob matching

    Globby is a user-friendly glob matching library for Node.js, built on top of fast-glob, offering enhanced features for file pattern matching.
    Downloads: 8 This Week
    Last Update:
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  • 8
    Golden Layout

    Golden Layout

    A multi window layout manager for webapps

    Golden Layout is a JavaScript layout manager designed for building complex, multi-panel web applications with draggable and resizable components. It enables developers to arrange UI elements into flexible layouts that can be dynamically reconfigured by users through drag-and-drop interactions. The system is particularly useful for dashboards, IDE-like interfaces, and data-heavy applications where multiple panels need to coexist and be rearranged. Golden Layout manages component positioning, visibility, and resizing through a structured layout tree, allowing precise control over how elements are displayed. It also supports saving and restoring layouts, enabling persistence of user configurations across sessions. The library integrates with popular frontend frameworks such as Angular and Vue, and includes support for virtual components to bridge framework-specific rendering models.
    Downloads: 8 This Week
    Last Update:
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  • 9
    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: 8 This Week
    Last Update:
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  • 10
    LaTeX.CSS

    LaTeX.CSS

    LaTeX.css is a library that makes your website look like a LaTeX doc

    This almost class-less CSS library turns your HTML document into a website that looks like a LATEX document. Write semantic HTML, and you are good to go. The source code can be found on GitHub. LaTeX.css is a minimal, almost class-less CSS library that makes any website look like a LaTeX document. Add any optional classes to elements with special styles (author subtitle, abstract, lemmas, theorems, etc.). The labels of theorems, definitions, lemmas and proofs can be changed to other supported languages by including the snippet provided in addition to the main CSS file. Sidenotes can be used as an alternative to footnotes, where the user does not have to jump to the bottom of the page to read it. On mobile, click the superscript to reveal the note. Add a class of left to the span with the sidenote class to make the note appear on the left side of the page on instead of right.
    Downloads: 8 This Week
    Last Update:
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  • 11
    MUI Core

    MUI Core

    React components for faster and easier web development

    MUI Core (formerly Material-UI) consists of React components for faster and easier web development, with options for creating your own design system or starting with Material design. MUI components work without any additional setup, and don't pollute the global scope.
    Downloads: 8 This Week
    Last Update:
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  • 12
    Notifme SDK

    Notifme SDK

    A Node.js library to send all kinds of transactional notifications

    A unified messaging API that enables sending notifications via multiple channels such as email, SMS, push, and chat.
    Downloads: 8 This Week
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  • 13
    Pusher Channels Javascript Client

    Pusher Channels Javascript Client

    Pusher Javascript library

    Bi-directional hosted APIs that are flexible, scalable and easy to use. We create and maintain complex messaging infrastructure so you can build the realtime features your users need, fast.
    Downloads: 8 This Week
    Last Update:
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  • 14
    Rollup

    Rollup

    A module bundler for JavaScript

    Rollup is a module bundler for JavaScript which compiles small pieces of code into something larger and more complex, such as a library or application. It uses the new standardized format for code modules included in the ES6 revision of JavaScript, instead of previous idiosyncratic solutions such as CommonJS and AMD. ES modules let you freely and seamlessly combine the most useful individual functions from your favorite libraries. This will eventually be possible natively everywhere, but Rollup lets you do it today. Rollup can be used either through a command line interface with an optional configuration file, or else through its JavaScript API. Rollup allows you to write your code using the new module system, and will then compile it back down to existing supported formats such as CommonJS modules, AMD modules, and IIFE-style scripts. This means that you get to write future-proof code.
    Downloads: 8 This Week
    Last Update:
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  • 15
    SurveyJS

    SurveyJS

    JavaScript Survey and Form Library

    SurveyJS Form Library is distributed as npm packages and as scripts and style sheets that you can reference on your page. You can use it in any React, Angular, Vue, Knockout, or jQuery application. React, Angular, Knockout, and Vue3 are supported natively. To communicate with the server, the libraries use JSON objects that represent form schemas (content and layout of a form) and form results (answers). You have the option to build dynamic JSON-driven forms using our free full-featured form builder demo available on the website. Alternatively, you can integrate the form builder library and create forms using a drag-and-drop UI directly within your own application. With years of development and support behind us, we've assisted hundreds of companies across various industries. With Survey, you can create nearly anything that popular cloud services offer. Furthermore, our library is fully extensible, allowing you to modify its behavior to suit your specific needs.
    Downloads: 8 This Week
    Last Update:
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  • 16
    SweetModal

    SweetModal

    The sweetest library to happen to modals.

    The sweetest library to happen to modals, is now available for Vue.js.
    Downloads: 8 This Week
    Last Update:
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  • 17
    amqplib

    amqplib

    AMQP 0-9-1 library and client for Node.JS

    amqplib is a Node.js client library for the Advanced Message Queuing Protocol (AMQP), enabling applications to connect to AMQP brokers like RabbitMQ for messaging functionalities.
    Downloads: 8 This Week
    Last Update:
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  • 18
    carbone

    carbone

    Fast and simple report generator, from JSON to pdf, xslx, docx, odt

    Turn your JSON into PDF, DOCX, XLSX, PPTX, ODS and many more. Fast, Simple and Powerful report generator in any format PDF, DOCX, XLSX, ODT, PPTX, ODS, XML, CSV using templates and your JSON data as input.
    Downloads: 8 This Week
    Last Update:
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  • 19
    emojilib

    emojilib

    Emoji keyword library

    Emoji keyword library. Make emoji searchable with this keyword library. If you are looking for the unicode emoji dataset, including version, grouping, ordering, and skin tone support flag, check out unicode-emoji-json.
    Downloads: 8 This Week
    Last Update:
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  • 20
    jQuery Google Maps Store Locator Plugin

    jQuery Google Maps Store Locator Plugin

    A store locator plugin using Google Maps API version 3

    This jQuery plugin takes advantage of Google Maps API version 3 to create an easy to implement store locator. No back-end programming is required, you just need to feed it KML, XML, or JSON data with all the location information. How you create the data file is up to you. I originally created this for a company that didn’t have many locations, so I just used a static XML file. You will need to geocode your locations beforehand or use a geocoding API service if you want to try to do it on the fly. The reason for this is that all free geocoding APIs have strict limits that would easily be exceeded. In the end, you're much better off storing the coordinates versus having to look them up for each location on each request.
    Downloads: 8 This Week
    Last Update:
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  • 21
    jq.Schedule

    jq.Schedule

    jquery and html schedule calendar

    jQuery and HTML schedule calendar.
    Downloads: 8 This Week
    Last Update:
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  • 22
    simpleParallax.js

    simpleParallax.js

    Simple and tiny JavaScript library that adds parallax animations

    simpleParallax.js is a very simple and tiny Vanilla JS library that adds parallax animations on any image. Where it may be laborious to get results through other plugins, simpleParallax.js stands out for its ease and its visual rendering. The parallax effect is directly applied to image tags, there is no need to use background images.
    Downloads: 8 This Week
    Last Update:
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  • 23
    Hotkeys JS

    Hotkeys JS

    A robust Javascript library for capturing keyboard input

    hotkeys-js is a tiny, framework-agnostic library for binding keyboard shortcuts in the browser, from simple key presses to complex combos and sequences. It provides a declarative API to register handlers like ctrl+k, shift+alt+p, or g g, and it normalizes key behavior across major browsers. The library includes scoping, so the same shortcut can trigger different actions depending on page context, and it offers filters to ignore inputs when the user is typing in form fields. You can enable or disable groups of shortcuts dynamically, making it well suited for SPAs and dashboard apps. Because it has no external dependencies and a small footprint, it drops easily into existing codebases. Its focus on developer ergonomics makes defining, managing, and cleaning up shortcuts straightforward.
    Downloads: 7 This Week
    Last Update:
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  • 24
    LIVE

    LIVE

    Directly accessible TV/radio icon library and related tool projects

    LIVE is an open-source Chinese television and radio logo library with related IPTV utility resources. The project provides directly accessible TV and radio icon paths that can be used in playlist, player, and electronic program guide workflows. It includes folders for TV icons, radio icons, M3U resources, M3U8 tools, a player, TXT-to-M3U conversion, and worker-related files. The README explains how users can create their own M3U subscription link by editing a sample playlist and hosting it through GitHub Pages. It also exposes an EPG interface and web tools for tasks such as M3U8 downloading and format conversion. The project states that it does not store streaming media itself, so it is best viewed as an icon, playlist, and utility resource for testing and personal configuration.
    Downloads: 7 This Week
    Last Update:
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  • 25
    ScrollMagic

    ScrollMagic

    The javascript library for magical scroll interactions

    ScrollMagic helps you to easily react to the user's current scroll position. ScrollMagic is a complete rewrite of its predecessor Superscrollorama by John Polacek. A plugin-based architecture offers easy customizability and extendability. Animate based on scroll position, pin an element starting at a specific scroll position, toggle CSS classes of elements on and off based on scroll position, effortlessly add parallax effects to your website, create an infinitely scrolling page, add callbacks at specific scroll positions or while scrolling past a specific section. Either trigger an animation or synchronize it to the scrollbar movement (like a playback scrub control). Pin an element starting at a specific scroll position, either indefinitely or for a limited amount of scroll progress (sticky elements). You can add callbacks at specific scroll positions or while scrolling past a specific section, passing a progress parameter.
    Downloads: 7 This Week
    Last Update:
    See Project