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
    tabler icons

    tabler icons

    1950 free MIT-licensed high-quality SVG icons

    A set of over 1950 free MIT-licensed high-quality SVG icons for you to use in your web projects. Over 1950 pixel-perfect icons for web design. Free and open-source icons designed to make your website or app attractive, visually consistent, and simply beautiful. Each icon is designed on a 24x24 grid and a 2px stroke. All icons are built with SVG, so you can place them as <img>, background-image and inline in HTML code. If you load an icon as an image, you can modify its size using CSS. You can paste the content of the icon file into your HTML code to display it on the page. Import the icon and render it in your component. You can adjust SVG properties through React props. Angular components are available through the angular-tabler-icons package. Vue components are available through the vue-tabler-icons package. Install the package, import the icon component and render it in your component. You can adjust SVG properties by passing regular HTML attributes.
    Downloads: 7 This Week
    Last Update:
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  • 2
    Leaflet

    Leaflet

    Open-source JavaScript library for mobile-friendly interactive maps

    Leaflet is a leading open source JavaScript library for creating interactive, mobile-friendly maps. Leaflet is light at just about 38 KB, but is already fully equipped with all the mapping features you could need. Leaflet is simple but efficient. It doesn’t try to do everything for everybody, rather it focuses on making the basic things work perfectly. It comes ready with exceptional layering tools, customization features such as pure CSS3 popups and controls, map controls and more right out of the box, and works on all major desktop and mobile platforms. Leaflet also comes with a range of interaction features, and can be extended with an abundance of great plugins.
    Downloads: 6 This Week
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  • 3
    MixItUp 3

    MixItUp 3

    Library for animated filtering, sorting, insertion, removal and more

    MixItUp is a high-performance, dependency-free library for animated DOM manipulation, giving you the power to filter, sort, add and remove DOM elements with beautiful animations. MixItUp plays nice with your existing HTML and CSS, making it a great choice for responsive layouts and compatible with inline-flow, percentages, media queries, flexbox and more. MixItUp is open source and free to use for non-commercial, educational and non-profit use. For use in commercial projects, a commercial license is required. Most commonly, MixItUp is applied to a "container" of "target" elements, which could be a portfolio of projects, a list of blog posts, a selection of products, or any kind of UI where filtering and/or sorting would be advantageous. Targets can be filtered using any valid selector e.g. '.category-a', and are sorted via optional custom data attributes e.g. 'data-order'.
    Downloads: 6 This Week
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  • 4
    Zip.js

    Zip.js

    JavaScript library to zip and unzip files

    Zip.js is a JavaScript library for creating, reading, and editing ZIP files directly in the browser or in Node.js environments, supporting various compression methods and encryption.
    Downloads: 6 This Week
    Last Update:
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  • 5
    Calibre-Web Automated

    Calibre-Web Automated

    Calibre-Web but Automated and with tons of New Features

    Calibre-Web-Automated (CWA) is an all-in-one, self-hosted solution for managing an ebook library that combines the modern, lightweight web UI style of Calibre-Web with the deeper tooling and conversion capabilities associated with Calibre. The goal is to reduce the common “two-service” setup where users run Calibre-Web for browsing and Calibre separately for conversions, metadata fixes, and automation, by packaging those workflows together in a single system. CWA keeps the familiar strengths of Calibre-Web, like a responsive interface, OPDS feeds for e-readers, and strong user/permission management, while layering in extensive automation features that handle ingest, conversion, metadata enforcement, and library organization with less manual effort. It also expands authentication options (including modern OAuth/OIDC flows) and adds quality-of-life improvements such as enhanced search/filtering, multi-language UI support, and better device-centric workflows for sending to e-readers.
    Downloads: 5 This Week
    Last Update:
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  • 6
    Cloudflare-Socks5

    Cloudflare-Socks5

    CF-workers/pages proxy script: supports Vless-ws (tls) and Trojan-ws

    Cloudflare-Socks5 is a proxy deployment toolkit designed to leverage Cloudflare Workers and Pages to create flexible, censorship-resistant proxy nodes using protocols such as VLESS and Trojan. The project provides scripts that enable users to deploy proxy services locally without relying on external subscription providers, improving privacy and control over configuration data. It supports multiple transport modes including WebSocket with TLS, as well as optional encrypted handshake mechanisms like ECH-TLS, standard TLS, or even non-TLS configurations to adapt to different network restrictions. The system is designed with accessibility in mind, offering simplified setup processes that allow users to deploy nodes with minimal configuration, often requiring only a UUID or password. It also includes tools for generating optimized Cloudflare IP selections and supports multiple node formats for compatibility with clients like Clash and sing-box.
    Downloads: 5 This Week
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  • 7
    DO180-apps

    DO180-apps

    DO180 Repository for Sample Applications

    DO180-apps is an open source repository maintained by Red Hat Training that provides sample applications for the DO180 course, which focuses on container basics using Red Hat OpenShift. The repository includes multiple small applications written in different languages, such as Node.js, PHP, and simple front-end examples, designed to demonstrate containerization, deployment, and scaling on OpenShift. Learners use these apps to practice building, deploying, and managing workloads in a containerized environment. Each example is lightweight and structured to highlight specific OpenShift capabilities without unnecessary complexity. The repository plays a key role in hands-on labs and exercises for container training.
    Downloads: 5 This Week
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  • 8
    DataTables

    DataTables

    Tables plug-in for jQuery

    DataTables is a jQuery plugin that enhances HTML tables with powerful dynamic features such as searching, sorting, and pagination. It transforms plain static tables into interactive data explorers with minimal code changes. Developers can customize its behavior through an extensive API, adding export buttons, column visibility toggles, custom filters, and integration with remote data sources via Ajax. The plugin is modular, with a core that provides essentials and a wide range of extensions that cover advanced functionality like fixed headers, responsive layouts, and inline editing. Styling can be adapted to frameworks like Bootstrap or Foundation, making it blend seamlessly into modern UIs. Because it handles large datasets efficiently, DataTables has become a go-to component for dashboards, reporting tools, and admin interfaces.
    Downloads: 5 This Week
    Last Update:
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  • 9
    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: 5 This Week
    Last Update:
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  • 10
    OpenLayers

    OpenLayers

    A high-performance, feature-packed library for all your mapping needs

    OpenLayers makes it easy to put a dynamic map in any web page. It can display map tiles, vector data and markers loaded from any source. OpenLayers has been developed to further the use of geographic information of all kinds. It is completely free, Open Source JavaScript, released under the 2-clause BSD License (also known as the FreeBSD). Pull tiles from OSM, Bing, MapBox, Stamen, and any other XYZ source you can find. OGC mapping services and untiled layers also supported. Render vector data from GeoJSON, TopoJSON, KML, GML, Mapbox vector tiles, and other formats. Leverages Canvas 2D, WebGL, and all the latest greatness from HTML5. Mobile support out of the box. Build lightweight custom profiles with just the components you need. Style your map controls with straight-forward CSS. Hook into different levels of the API or use 3rd party libraries to customize and extend functionality.
    Downloads: 5 This Week
    Last Update:
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  • 11
    Venom

    Venom

    Venom is the most complete javascript library for Whatsapp

    Venom is a high-performance system developed with JavaScript to create a bot for WhatsApp, support for creating any interaction, such as customer service, media sending, sentence recognition based on artificial intelligence and all types of design architecture for WhatsApp. It's a high-performance alternative API to whatzapp, you can send, text messages, files, images, videos and more. Remember, the API was developed on a platform called RESTful Web services, providing interoperability between computer systems on the Internet. It uses a set of well-defined operations that apply to all information resources, HTTP itself defines a small set of operations, the most important being post, get, put and delete. Use it in your favorite language like PHP, Python, C# and others. as long as your language is supported with the HTTP protocol, you will save time and money. you don't need to know how Venom works, we have the complete API documentation, in a professional way!
    Downloads: 5 This Week
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  • 12
    ember-intl

    ember-intl

    Localization library for any Ember Application or Addon

    Internationalize your Ember apps. Ember-intl is an internationalization addon that unlocks translating simple to complex messages using built-in pluralization rules, number and datetime formatting, with support for over 150 languages. Ember-intl is now entirely built on native ECMAScript Internationalization APIs that are now supported by all modern browsers. Locale-aware numbers. Formatting of currencies, decimals, and percentages. Locale-aware dates and times formatting. Locale-aware display of relative time. i.e, "in 1 day", "2 years ago", etc. Support for 150+ languages. Built largely on standards. ICU message syntax & Native Intl API. Extensive Ember Service API and template helpers for formatting and translating. Advanced addon support to provide translations to the host app.
    Downloads: 5 This Week
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  • 13
    CoreUI

    CoreUI

    Open Source UI Kit built on top of Bootstrap 5 and plain JavaScript

    CoreUI Admin Panel is not another blend of 3rd parties free components and libraries. It's the only Open Source Bootstrap Admin Dashboard Template built on the enterprise-grade hand-crafted UI Components Library created and backed by professionals. CoreUI and CoreUI PRO are delivered with fully-featured, and ready-to-use admin panel templates for your application. Save thousands of development hours by using ready-made, reusable, and commonly used widgets and UI components. Moreover, CoreUI Bootstrap Admin Template is delivered with a ready-to-use environment, so you don't have to waste time configuring the project. All build scripts and tools are ready to use out of the box. With CoreUI Template you can start a new project in a minute!
    Downloads: 4 This Week
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  • 14
    DateTimePicker

    DateTimePicker

    Responsive jQuery DateTime Picker plugin for Web & Mobile

    DateTime Picker is a quick highly customizable jQuery plugin. The design is clutter-free & well-suited for embedding it into mobile application development. Users can change values using +/- buttons or type values directly into the textbox by selecting each value field. For the web, the picker can be bound relative to the reference element, were it will appear at the bottom of the element. For mobile, the picker can appear as a dialog box covering the entire window.
    Downloads: 4 This Week
    Last Update:
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  • 15
    Dexie.js

    Dexie.js

    A Minimalistic Wrapper for IndexedDB

    Dexie was written to be straightforward and easy to learn. If you've ever had to work with native IndexedDB then you'll certainly appreciate Dexie's concise API. What good is any development tool without great documentation? Dexie is thoroughly explained, and examples are available to help you on your way. Dexie has near-native performance. Its bulk operations utilize an often-overlooked feature in IndexedDB, ignoring success callbacks when possible. Offline databases are groovy! But without keeping the database in sync with a server, you're missing a great deal. Dexie.js solves these limitations and provides a neat database API. Dexie.js aims to be the first-hand choice of a IDB Wrapper Library due to its well thought-through API design, robust error handling, extendability, change tracking awareness and its extended KeyRange support (case insensitive search, set matches and or operations).
    Downloads: 4 This Week
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  • 16
    Moment.js

    Moment.js

    Parse, validate, manipulate, and display dates in javascript

    Moment is a JavaScript date and time library that simplifies parsing, formatting, arithmetic, and humanizing of dates. It supports many formats in input and output, internationalization (i18n), locale-based month/day names, relative time (for example, “3 days ago”), and chaining of operations (adding, subtracting, diffing). Developers often use it for calendar displays, scheduling, and manipulating times across time zones or daylight saving transitions. While it makes working with date strings convenient, moment maintains internal mutability, which has trade-offs with safety and chainability. Over time, newer alternatives with immutable and modular designs have emerged, but moment remains widely known and integrated in many legacy projects. Its comprehensive feature set and ease of use made it a standard for date-time handling in JavaScript for many years.
    Downloads: 4 This Week
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  • 17
    React Bits Library

    React Bits Library

    Open source collection of animated, interactive React components

    React-bits is an open-source library of animated, interactive, and fully customizable React UI components that empowers developers to build visually striking and dynamic web interfaces without spending excessive time crafting animations from scratch. It features a large and rapidly growing collection of components — including text effects, background animations, and interactive UI pieces — each designed to be easy to integrate into any modern React project and work seamlessly with popular styling systems like CSS and Tailwind CSS. The library supports both JavaScript and TypeScript variants for many components, giving developers flexibility in how they use and adapt them to their codebase. React-bits puts emphasis on creativity, performance, and minimal dependencies, so animations and effects are lightweight but still fluid and expressive, helping sites stand out with compelling visual interactions.
    Downloads: 4 This Week
    Last Update:
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  • 18
    TailAdmin

    TailAdmin

    Free and Open-source Tailwind CSS Dashboard Admin Template

    TailAdmin is a free and open source admin dashboard template built with Tailwind CSS, designed to help developers quickly create data-driven web applications and backend interfaces. It provides a complete starting point for dashboards, including prebuilt pages, layouts, and UI components that are commonly required in admin panels and control systems. The template is built using a combination of HTML, Tailwind CSS, Alpine.js, and modern build tools, making it lightweight while still offering interactive functionality. TailAdmin includes essential features such as charts, tables, authentication forms, and navigation components, enabling developers to assemble full dashboards without starting from scratch. It also supports multiple frameworks, including React, Next.js, Vue, Angular, and Laravel, making it highly adaptable to different development stacks. With responsive design and dark mode support built in, it ensures usability across devices and environments.
    Downloads: 4 This Week
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  • 19
    VvvebJs

    VvvebJs

    Drag and drop website builder javascript library

    Drag and drop website builder javascript library. Components and blocks/snippets drag and drop. Undo/Redo operations. One or two panels interface. File manager and component hierarchy navigation. Add a new page. Live code editor. Image upload with example PHP script included. Page download or export HTML or save the page on the server with example PHP script included. Components/Blocks list search. Bootstrap 4 components. Youtube, Google maps, Charts.js, etc widgets. By default, the editor comes with Bootstrap 4 and Widgets components and can be extended with any kind of components and inputs.
    Downloads: 4 This Week
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  • 20
    PyGObject for Windows

    PyGObject for Windows

    All-In-One PyGI/PyGObject for Windows Installer

    Cross-platform python dynamic bindings of GObject-based libraries for Windows 32-bit and 64-bit.
    Downloads: 33 This Week
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  • 21
    ARC-AGI

    ARC-AGI

    The Abstraction and Reasoning Corpus

    ARC-AGI is a benchmark dataset and experimental framework designed to evaluate and advance artificial general intelligence by testing systems on abstract reasoning tasks that require human-like problem-solving abilities. It consists of a curated set of tasks where models must infer patterns from input-output examples and apply those rules to new unseen cases, without relying on memorization or prior training data. The dataset is structured as grid-based puzzles, where each task requires understanding transformations such as symmetry, counting, or spatial manipulation. Unlike traditional machine learning benchmarks, ARC emphasizes generalization and reasoning over statistical pattern recognition, making it particularly challenging for current AI systems. The repository also includes a browser-based interface that allows humans to attempt solving the tasks manually, providing a baseline for comparison.
    Downloads: 3 This Week
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  • 22
    Day.js

    Day.js

    Fast, immutable 2kB alternative to Moment.js with the same modern API

    Day.js is a fast, immutable, minimalist JavaScript library for parsing, validating, manipulating, and displaying dates and times for modern browsers. Its API is largely compatible with that of Moment.js, so if you know how to use Moment.js you’ll know how to use Day.js. Why opt for Day.js? Because it’s at just 2kB it involves less JavaScript to download, parse and execute, and more time for your code. Day.js is also immutable, chainable and has great support for internationalization. It currently supports all browsers.
    Downloads: 3 This Week
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  • 23
    ECharts

    ECharts

    A powerful, interactive charting and visualization library for browser

    ECharts is a free and open source charting and visualization library that gives you an easy way to add interactive, intuitive, custom charts to your commercial products, projects, presentations and more. It offers a rich set of features that includes rendering ability for ten-million-level data, Wechart and Powerpoint support, multi-dimension data analysis, and more. It also has a number of extensions for various applications. ECharts is written in pure JavaScript, and is based on zrender, a new and lightweight canvas library.
    Downloads: 3 This Week
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  • 24
    Google Style Guides

    Google Style Guides

    Style guides for Google-originated open source projects

    Google Styleguide is a comprehensive collection of coding style guides created and maintained by Google to ensure consistency, readability, and maintainability across its vast array of software projects. These guides define best practices and conventions for writing code in multiple programming languages, from C++ and Python to JavaScript, Go, and Swift. By adhering to these standards, developers can more easily collaborate, review code, and maintain high-quality software across teams and open source contributions. Each guide covers a wide range of topics, including naming conventions, file organization, indentation, documentation, and usage of specific language features. The repository also provides supplementary resources such as an Emacs configuration file for Google’s C++ style and references to related guidelines like Effective Dart and Kotlin Style Guide.
    Downloads: 3 This Week
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  • 25
    HyperUI

    HyperUI

    Free Tailwind CSS v4 components for your next project

    HyperUI is a large, copy-and-paste library of Tailwind CSS components aimed at speeding up interface building without adding heavy JavaScript. It groups components by common product needs—navigation, hero sections, pricing, forms, cards, tables, and full e-commerce flows—so teams can assemble pages quickly from consistent building blocks. Each snippet is written as semantic HTML with Tailwind utility classes, making it easy to customize spacing, color, and typography through a project’s Tailwind config. The components are responsive by default, using grid and flex patterns that adapt cleanly from mobile to widescreen layouts. Accessibility is treated pragmatically: markup favors proper roles and focus states, and most interactive behaviors can be wired with lightweight libraries or framework code if desired. Because everything is plain markup, adoption is frictionless in any stack (React, Vue, Svelte, Rails, Laravel), and designers can tweak styling without refactoring component logic.
    Downloads: 3 This Week
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