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
    universal-tilt.js

    universal-tilt.js

    Parallax tilt effect library

    JavaScript & jQuery elements movement library based on Tilt.js by Gijs Rogé and vanilla-tilt.js by Șandor Sergiu. universal-tilt.js contains additional functions for mobile devices with a gyroscope, new Position Base option and more.
    Downloads: 1 This Week
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  • 2
    validatorjs

    validatorjs

    A data validation library in JavaScript for the browser and Node.js

    The validatorjs library makes data validation in JavaScript very easy in both the browser and Node.js. This library was inspired by the Laravel framework's Validator.
    Downloads: 1 This Week
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  • 3
    ** Guys I have built a much more powerful Fully Featured CMS system at: https://github.com/MacdonaldRobinson/FlexDotnetCMS Macs CMS is a Flat File ( XML and SQLite ) based AJAX Content Management System. It focuses mainly on the Edit In Place editing concept. It comes with a built in blog with moderation support, user manager section, roles manager section, SEO / SEF URL
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    Downloads: 17 This Week
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  • 4

    Empact Foundation Class Library

    Cross-platform C++ library for use as a default application framework.

    A mature cross-platform C++ library for use as a default application framework. Features include: * Threading & synchronization * Socket programming: SSL, NanoMsg & ZMQ * File I/O utilities: zlib, ini, yaml * Native Database access: MySQL, SQLite, BerkleyDB, Postgre, REDIS and ODBC * Built-in mini XML parser; optional EXPAT, LIBXML and MSXML support * Network protocol stack: HTTP, FTP, SMTP, POP3, SOAP, XMLRPC * Scripting languages: Perl, Python, JavaScript, VBScript, Java, Lua, TCL, Squirrel * Cloud Computing: AWS * Encryption: OpenSSL * Platforms: Linux/Posix, Windows, Arduino * Over 500+ highly reusable classes. 4000+ fully documented functions. Follow the 'Wiki' link above to explore everything about the framework.
    Downloads: 10 This Week
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  • 5
    pidCrypt
    pidCrypt is no longer maintained! pidCrypt is a crypto library offering modular cryptographic functions in JavaScript. Supports: AES (CBC & CTR Mode), RSA, MD5, SHA-1, SHA-256, SHA-384, SHA-512, ASN.1, Base64, UTF-8. The AES-CBC mode is compatible to OpenSSL.
    Downloads: 3 This Week
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  • 6
    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: 8 This Week
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  • 7
    jit enables lazy loading of javascript resources by injecting proxy functions that will load the required script the first time they are used.
    Downloads: 6 This Week
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  • 8
    SlimMVC.js

    SlimMVC.js

    Your Slim MVC JavaScript

    A simple JavaScript framework to implement MVC pattern and safe against XSS attacks using nodeValue property rather innerHTML.
    Downloads: 2 This Week
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  • 9

    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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  • 10

    jsdk2

    JSDK is JavaScript Development Kit.

    JSDK is a JavaScript framework, have a small core file and many extension libraries, have the following features: Lang-Extension, BOM,DOM,Event, Reflect, AOP, Thread,JS2D, JSGF and JSUI. You can use the JSDK to develop web application , JS games, or web widgets.
    Downloads: 3 This Week
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  • 11
    MathematicalRamblingsjs

    MathematicalRamblingsjs

    Biblioteca JavaScript Mathematical Ramblings.

    Biblioteca de funções, procedimentos e constantes JavaScript do projeto Mathematical Ramblings (https://antoniovandre.github.io/MathematicalRamblingsjs).
    Downloads: 2 This Week
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  • 12
    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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  • 13
    GetHTTP is a very easy to use ajax library. it basicly consists of two functions syncHTTP and asyncHTTP. The goal of the project is to make ajax available to anyone, without any knowladge of the XMLHttpRequest object.
    Downloads: 2 This Week
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  • 14

    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: 1 This Week
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  • 15
    A collection of open source libraries and tools that provide solutions for common problems in processing Arabic text, especially in web applications. text normalization, phrase segmentation, text indexing, stop word lists, common spelling mistakes.
    Downloads: 1 This Week
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  • 16

    Flask-AppBuilder

    Rapid web application development (python + Flask)

    Simple and rapid Application builder, built on top of Flask. includes detailed security, auto form generation, google charts and much more. Demo on: http://flaskappbuilder.pythonanywhere.com/
    Downloads: 1 This Week
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  • 17
    Webiness

    Webiness

    Lightweight PHP framework

    Webiness is lightweight PHP framework based on MVC design pattern. It has a very straightforward installation process that requires only a minimal configuration, so it can save you a lot of hassle. Also, it canbe an ideal choice if you want to avoid PHP version conflict, as it works on all PHP versions from 5.3. Webiness extensively uses the lazy loading technique so, in most cases, it is faster then other frameworks. It can be used for rapid prototyping of web applications. Webiness is integrated with jQuery, and it comes with a set of AJAX-enabled features and his own light CSS framework for frontend development. Trying to be secure, it has integrated authetification and authorization module, RBAC user interface, sessions expire feature, input validation, CSRF protection, SQL injection prevention and other security features.
    Downloads: 1 This Week
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  • 18

    iLib

    The most comprehensive library of Javascript i18n classes available

    Note: development has been moved over to github! Please see https://github.com/iLib-js/iLib "I18N" means way more than just translation. Other libraries claim to be an i18n solution when translation and string formatting is really all they offer. Yes, iLib has classes that do translation too, but there is also much, much more. From date formatting to name parsing to phone number handling to collation, iLib has classes that do it. And, it has the ability to support thousands of possible locales. Everything in iLib is written in pure JS with minimal platform dependencies, so it works the same way in many different environments and browsers, from Chrome to Opera to node to Qt/QML. Over 17K unit tests help to guarantee this. ILib is also the library of choice for enyo apps on webOS which ships on over 10 million LG SmartTVs in over 135 countries. Give it a try and see if it can work for your app too!
    Downloads: 1 This Week
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  • 19
    liblzg is a minimal implementation of an LZ77 class compression library. The main characteristic of the library is that the decoding routine is very simple, fast and requires no memory.
    Downloads: 1 This Week
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  • 20
    mPagesJS JavaScript Library
    mPagesJS is a JavaScript Framework that provides a core interface into all client-side functionality within Cerner Millennium Pages - MPages. mPagesJS makes MPage development quicker and easier.
    Downloads: 1 This Week
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  • 21
    webiness

    webiness

    Small PHP MVC Framework

    Webiness is lightweight PHP framework based on MVC design pattern. Webiness is free and open source project available under MIT licence. and, in some way, It's inspirated by Yii Framework but it has much less features then Yii. It try to keep good balance between number of features, usability, speed, security options and easy of development.
    Downloads: 1 This Week
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  • 22
    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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  • 23
    -prefix-free

    -prefix-free

    Break free from CSS prefix hell

    -prefix-free is a client-side JavaScript utility that lets authors write unprefixed CSS while supporting browsers that historically required vendor prefixes. After inclusion, it examines linked stylesheets, style blocks, inline declarations, and dynamically added CSS. It detects the current browser’s prefix and modifies only properties, values, selectors, functions, keywords, and at-rules that need it. The bundled StyleFix framework also lets plugin authors register additional CSS transformation callbacks. Public APIs can process complete CSS strings or prefix individual selectors and properties. Because the conversion happens in the browser, the original styles remain clean and easier to maintain. The repository was archived in 2024 and is now mainly useful for legacy projects and browser-compatibility study.
    Downloads: 0 This Week
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  • 24
    100 proyectos de JavaScript

    100 proyectos de JavaScript

    100 JavaScript projects with code and videos for free

    100 proyectos de JavaScript is a large collection of 100 JavaScript projects, each with source code and an accompanying video tutorial, offered entirely for free. The repository is tied to the website javascript100.dev, which presents the projects as a structured learning path so learners can progressively build their skills through practice.Each project lives in its own numbered folder (for example, 01-tinder-swipe), and the README explains how to run them via the VS Code Live Preview extension, making it easy for beginners to get them running without complex tooling. The projects cover a variety of small apps and UI experiments, such as swipe interactions, classic games, typing tests, and more, focusing on vanilla JavaScript with HTML and CSS to reinforce core skills. The contribution section invites the community to fork the repo, implement or improve projects, and open pull requests, turning the collection into a collaborative learning space.
    Downloads: 0 This Week
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  • 25
    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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