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
    simplebox.js

    simplebox.js

    A simple, responsive lightbox plugin

    simplebox.js is a lightweight lightbox plugin (~936 bytes) that is easy to modify or extend to fit your needs. This plugin is intended to be quick, responsive, and efficient. The idea behind this plugin was to make the process of setting up a lightbox painless. My experience with finding and setting up lightbox plugins has been pretty bad. The plugins I've come across almost always have too many features. simplebox.js is designed to have just one feature: lightboxing. It's responsive out of the box and allows only a few crucial settings.
    Downloads: 1 This Week
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  • 2
    simplelightbox

    simplelightbox

    Touch-friendly image lightbox for mobile and desktop

    Touch-friendly image lightbox for mobile and desktop. You can customize Simplelightbox by changing the style in simplelightbox.css. You can have multiple lightboxes on one page if you give them different selectors. Only some CSS is included. You can change the style if you want. Lots of options. Preloading next and previous images. Android, iOs, and Windows phone support.
    Downloads: 1 This Week
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  • 3
    sing-box-yg

    sing-box-yg

    Sing-box Hardcover Bucket 5-in-1 Agreement VPS Dedicated Script

    sing-box-yg is a comprehensive automation script built around the sing-box core, designed to simplify the deployment and management of modern proxy protocols in a unified environment. It integrates multiple advanced networking technologies such as Hysteria2, TUIC, VLESS with Reality, and VMess configurations, enabling users to deploy diverse proxy solutions through a single streamlined workflow. The script supports multiple system environments including VPS, Docker, and containerized setups, making it adaptable to various infrastructure scenarios. It includes automated certificate management, allowing users to switch between self-signed and ACME certificates for secure connections. Additionally, it incorporates advanced routing capabilities such as traffic splitting and multi-country proxy integration, enhancing performance and flexibility.
    Downloads: 1 This Week
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  • 4
    smooth UI

    smooth UI

    Modern React UI library

    Modern React UI library. Code less, do more. Smooth UI is a style system / UI library for React. It works with Styled Components or Emotion. It is focused on developer experience, and productivity. You can focus on what you want to build instead of on how to build it. BrowserStack allows us to test in real browsers.
    Downloads: 1 This Week
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  • 5
    stdlib

    stdlib

    Standard library for JavaScript and Node.js

    A standard library for javascript and node.js. High performance, rigorous, and robust mathematical and statistical functions. Build advanced statistical models and machine learning libraries. Plotting and graphics functionality for data visualization and exploratory data analysis. Analyze and understand your data. Comprehensively tested utilities for application and library development. Functions to assert, group, filter, map, pluck, and transform your data both in browsers and on the server. Everything you would expect from a modern standard library. Consistent interfaces combined with extensive documentation, examples, tests, and benchmarks. High-quality implementations so you can focus less on finding the right package and more on getting work done.
    Downloads: 1 This Week
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  • 6
    web3.js

    web3.js

    Ethereum JavaScript API

    web3.js is the Ethereum JavaScript API that connects to the Generic JSON-RPC spec. It is composed of a selection of libraries that make it possible to interact with a local or remote ethereum node, using a HTTP or IPC connection. The node may be local, hosted by the DApp provider, or a public gateway such as Infura, which operates free Ethereum access points. It is necessary to run a local or remote Ethereum node to be able to use this library. web3.js is directly usable on web technology and is also commonly used on the server side in Node.js applications and in Electron-based desktop applications.
    Downloads: 1 This Week
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  • 7
    workerpool

    workerpool

    Offload tasks to a pool of workers on node.js and in the browser

    workerpool is a JavaScript library that simplifies the creation and management of worker threads and process pools for parallel task execution in Node.js and browser environments. The project provides an abstraction layer that allows developers to offload CPU-intensive operations to background workers without manually handling thread communication or lifecycle management. It supports task queuing, dynamic worker scaling, timeouts, transferable objects, and proxy-based APIs for interacting with worker functions as if they were local calls. workerpool is designed to improve application responsiveness and throughput in workloads involving heavy computation, data processing, or asynchronous execution. The library works across multiple environments, supporting Web Workers in browsers and Worker Threads or child processes in Node.js. Its architecture emphasizes ease of integration, scalability, and efficient concurrency management for modern JavaScript applications.
    Downloads: 1 This Week
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  • 8
    jit enables lazy loading of javascript resources by injecting proxy functions that will load the required script the first time they are used.
    Downloads: 10 This Week
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  • 9
    multiOTP open source

    multiOTP open source

    PHP strong authentication library, web interface & CLI, OATH certified

    multiOTP is a PHP class, a powerful command line utility and a web interface developed by SysCo systèmes de communication sa in order to provide a completely free and easy operating system independent server side implementation for strong two factors authentication solution. multiOTP supports hardware and software tokens with different One-Time Password algorithms like OATH/HOTP, OATH/TOTP and mOTP (Mobile-OTP). QRcode generation is also embedded in order to support provisioning of Google Authenticator software tokens. SMS code sending is currently implemented for several providers (ASPSMS, Clickatell and IntelliSMS). The data storage of the command line utility is by default flat files based in order to simplify deployment in a few minutes, but MySQL backend is supported too. multiOTP can be easily integrated in RADIUS servers like FreeRADIUS under Linux/Windows or TekRADIUS LT under Windows. multiOTP is also the engine of the credential provider multiOTP Credential Provider.
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    Downloads: 9 This Week
    Last Update:
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  • 10

    Api Update

    Get the version of Javascript API you need

    You can found here all the versions of each major API available for your Javascript projects or for your Web site. Get the last update of your favorite API, or any older version you need. Jquery,Jquery UI, Prototype, MooTools ... For using them in your Web site, you can find the necessary shortcuts to the lastest version of each library in our Wiki page:
    Downloads: 1 This Week
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  • 11
    PDF API HTML5 Web Apps

    PDF API HTML5 Web Apps

    Mini SDK JavaScript API library PDF web apps

    A condensed library designed to web modern applications, to quickly export your content html to pdf thanks the famous library in javascript: jsPDF. And a special thanks to the project canvg and html2canvas. Project documentation: http://ulmdevice.altervista.org/pdfapihtml5/#documentation ========== Also available service for Angular 7+: http://ulmdevice.altervista.org/pdfjsapi/ Mobile Applications: http://bit.ly/1MrlgKk Opera add-on: http://bit.ly/1kkMhTa
    Downloads: 2 This Week
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  • 12
    jsf-showcase

    jsf-showcase

    JavaServer Faces (JSF) v.2.2.x showcase, portable web-application.

    JavaServer Faces (JSF) v.2.2.x web-framework showcase. Portable web-application for Java WEB-developers, who use Java Server Faces. Made for convenience - if Internet access suddenly down ). See please excellent projects: https://github.com/liferay/liferay-faces-showcase/ and https://github.com/heroku/webapp-runner/ , also https://mvnrepository.com/search?q=webapp-runner and https://mvnrepository.com/search?q=com.liferay.faces.demo .
    Downloads: 2 This Week
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  • 13
    This is a JavaScript Library that extends JavaScript's Date object to provide all the functionality that is missing from the standard implementation. Output a date in almost any textual format and calculate the exact difference between any two dates
    Downloads: 0 This Week
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  • 14
    30 Seconds of Code

    30 Seconds of Code

    Coding articles to level up your development skills

    30-seconds-of-code is a popular repository offering a vast collection of concise, reusable JavaScript code snippets that can be read and understood in 30 seconds or less. It covers a broad range of everyday programming tasks, from array manipulation to DOM handling. Ideal for learners and professionals alike, it promotes clean coding and fast prototyping by focusing on clarity and brevity.
    Downloads: 0 This Week
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  • 15
    An short but powerfull framework for PHP 5+. based in the Model View Controller (MVC), it can use Mysql, Microsoft Sql Server and partially Oracle
    Downloads: 0 This Week
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  • 16
    AJAX Live Search

    AJAX Live Search

    PHP search form that similar to Google Autocomplete feature

    AJAX Live Search is a PHP search form that similar to Google Autocomplete feature displays the result as you type. Getting the current example in index.php to work including creating a dummy database and a table should not take longer than 7 minutes. But it will take more in case you need to integrate it in an existing project.
    Downloads: 0 This Week
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  • 17
    AR.js

    AR.js

    Efficient Augmented Reality for the Web

    AR.js is a lightweight JavaScript library for delivering augmented reality experiences on the web. It supports image tracking, location-based AR, and marker-based interactions—all without requiring native applications or plugins. AR.js was among those great projects, with great technologies, often disruptive ones, that eventually were lacking from documentation and support. We tried to carry on the author's terrific work by maintaining this project, handling new versions, issues, pull requests, the community itself. We continued promoting this project through blogs, Medium articles, socials. And we released new features, like the Location Based AR that was not initially present on AR.js. Now, that we are also ready to ship a new feature, Image Tracking, we feel ready to start a new path, and so we have created a new repository that is not owned by individuals, but by one organization.
    Downloads: 0 This Week
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  • 18
    Active Graphs and Charts

    Active Graphs and Charts

    Add Powerful reporting features to your Web / Intranet pages and appli

    With the advanced graphing functionality you will be quickly adding impressive and dynamic charting capabilities. The graphing software is completely self contained within a single file making this an ideal solution for the incorporation of graphs and charts into web / intranet pages and applications. Versatile components provide the ability for web authors and developers to easily build and publish dynamic and interactive graphs and charts.
    Downloads: 0 This Week
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  • 19

    AirTSP

    Simulated Airline Travel Solution Provider Library

    AirTSP is also named AirTSP (TSP standing for Travel Service Provider). That project aims at providing a clean API and a simple implementation, as a C++ library, of an Airline Schedule Management System. It is intended to be used in simulated environments only: it is not designed to work in the real-world of Airline IT operations. AirTSP/AirTSP makes an extensive use of existing open-source libraries for increased functionality, speed and accuracy. In particular the Boost (C++ Standard Extensions: http://www.boost.org) library is used. AirTSP/AirTSP is the one of the components of the Travel Market Simulator (http://www.travel-market-simulator). However, it may be used in a stand-alone mode.
    Downloads: 0 This Week
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  • 20
    Airbnb JavaScript Style Guide

    Airbnb JavaScript Style Guide

    JavaScript Style Guide

    The Airbnb JavaScript Style Guide is a widely adopted, opinionated, open-source set of coding conventions and best practices for writing readable, maintainable JavaScript (and React/JSX) code, published under the MIT license and assuming usage of modern tooling such as Babel and ESLint. Whichever testing framework you use, you should be writing tests. Strive to write many small pure functions, and minimize where mutations occur. Be cautious about stubs and mocks - they can make your tests more brittle.
    Downloads: 0 This Week
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  • 21
    AmplitudeJS

    AmplitudeJS

    Open Source HTML5 Web Audio Library

    Open Source HTML5 Web Audio Library. Design your web audio player, the way you want. No dependencies are required. AmplitudeJS is a lightweight JavaScript library that allows you to control the design of your media controls in your webpage, not the browser. No dependencies (jQuery not required). AmplitudeJS is available under the MIT License. Open-source software is not sustainable without proper financial support. Maintaining an open-source project takes a lot of effort and resources. If you are very thankful for what you can do with AmplitudeJS or if you are using AmplitudeJS to make any sort of revenue, we kindly ask that you contribute any resources available to keep the community growing. Autogenerate waveforms and visualizations using the Web Audio API. Public functions for unlimited control! All of our example players have the code available on our "AmplitudeJS Example Players" repository.
    Downloads: 0 This Week
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  • 22
    Android ViewPagerIndicator

    Android ViewPagerIndicator

    Paging indicator widgets compatible with the ViewPager

    ViewPagerIndicator is a library for Android that provides rich, customizable paging indicators (tabs, circles, titles) that integrate with ViewPager from the Android support library (or AndroidX). The point is to give visual feedback for page-swiping content, enhance discoverability of segments, and improve UX for paged content flows like onboarding, photo galleries, or tabbed navigation. The library provides several indicator styles (title, tab, circle, line) and handles wiring to the ViewPager for you: you set the indicator in your layout, bind it to the ViewPager, and it updates as the user swipes. You can theme the indicators via XML, style attributes, or code for full customization. Although the library is archived and no longer actively developed, it remains a significant component in legacy Android apps, showing how to cleanly decouple navigation UI from the pager logic.
    Downloads: 0 This Week
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  • 23
    Angular-filter

    Angular-filter

    Bunch of useful filters for AngularJS with no external dependencies!

    Bunch of useful filters for AngularJS (with no external dependencies!). You can install angular-filter using 4 different methods. Include angular-filter.js (or angular-filter.min.js) in your index.html, after including Angular itself. Add 'angular.filter' to your main module's list of dependencies. If a string is provided, it will filter out duplicates using the provided expression.
    Downloads: 0 This Week
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  • 24
    AnyPicker

    AnyPicker

    jQuery Picker Library for Android, iOS & Windows Phone

    AnyPicker is a jQuery Picker Library for Android, iOS & Windows Phone. eg Date Picker, Time Picker, DateTime Picker, Rating Picker, Custom Select, etc. It simulates native picker functionality as seen in iOS, Android & Windows Phone & has many customizable features.
    Downloads: 0 This Week
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  • 25
    Elements for web application, designed from the application programmer's point of view. Keywords: Java, Javascript, AJAX, MVC. The core component is a very flexible table implementation.
    Downloads: 0 This Week
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