Open Source JavaScript Libraries - Page 6
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JavaScript Libraries
View 77 business solutionsBrowse 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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Pokedex.org
Offline-capable Pokédex web site
Pokedex is an offline-capable Pokémon encyclopedia built as a fully client-side JavaScript web application. It uses Service Workers to cache application resources so the Pokédex remains usable without a network connection. PouchDB provides browser-side data storage, while Web Workers move heavier processing away from the main interface thread. The UI is rendered with virtual-dom to keep interactions responsive on desktop and mobile devices. Pokémon data can be generated from PokéAPI and packaged into local database resources used by the application. The repository includes development, build, testing, and Service Worker versioning workflows. The project is now unmaintained but remains a notable example of an offline-first progressive web application architecture. -
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Pushy jQuery
Pushy is a responsive off-canvas navigation menu using CSS transforms
Pushy is a responsive off-canvas navigation menu using CSS transforms & transitions. This project was inspired by the off-canvas navigation menu seen on Medium. Pushy has been implemented on many sites, check them out! Feel free to contact me if you use Pushy in one of your websites. Pushy has been featured on the Treehouse Show and in a book. -
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QuoJS
Micro #JavaScript Library for Mobile Devices
QuoJS is a lightweight JavaScript library aimed at building mobile-first web interfaces with a focus on touch interactions and simple DOM utilities. It provides a compact, jQuery-like API for element selection, traversal, and manipulation, but trims the surface area to keep payloads small for mobile browsers. A core feature set centers on high-level touch gestures—such as tap, double-tap, swipe, pinch, and long-tap—abstracting away platform quirks so developers can attach handlers consistently across devices. The library embraces modern browser features and CSS3 where available, offering helpers that make common mobile UI patterns feel responsive and fluid. Because it is intentionally minimal, QuoJS plays well as a drop-in alongside other client libraries when you only need fast gestures and a few utilities rather than a full framework. Its API is designed to be readable and chainable. -
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Slinky
A light-weight, responsive, mobile-like navigation menu plugin
A light-weight, responsive, mobile-like navigation menu plugin -
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Ultimate React Course
https://github.com/jonasschmedtmann/ultimate-react-course
Ultimate React Course is the official repository for Jonas Schmedtmann’s Ultimate React course. It provides starter files, final project code, and FAQs that support a complete React learning path from fundamentals to more advanced application patterns. The course materials cover modern React development with components, props, state, effects, forms, routing, data fetching, state management, and larger real-world projects. Learners can begin each section from starter code, then compare their work against the final implementation when debugging or reviewing concepts. The repository is primarily an educational companion rather than a reusable app framework. It is useful for students who want a structured React practice environment with many examples built exactly as shown in the course. -
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Vanilla JS Projects
Course with Vanilla JS Projects
JavaScript Basic Projects is a collection of small applications for practicing browser programming with vanilla JavaScript. The repository contains 29 projects that progress from simple interface interactions to larger applications using external data. Early exercises cover counters, navigation bars, modals, tabs, menus, sliders, and countdown timers. Later examples introduce object-oriented programming, filtering, pagination, dark mode, and dynamic product interfaces. API-oriented projects work with jokes, users, cocktails, Wikipedia content, and other remote data sources. Each project provides a focused environment for learning DOM manipulation, events, application state, and JavaScript logic without a front-end framework. The collection accompanies a larger JavaScript course but can also be explored independently. -
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big.js
Fast JavaScript library for arbitrary-precision decimal arithmetic
big.js is a compact JavaScript library for arbitrary-precision decimal arithmetic. It avoids many floating-point accuracy problems that occur with JavaScript’s native Number type. Values are stored using a decimal coefficient, exponent, and sign rather than ordinary binary floating-point representation. Its API supports arithmetic, comparisons, powers, square roots, rounding, and common numeric formatting methods. Precision and rounding behavior can be configured for operations such as division. The library has no runtime dependencies and is only about 6 KB when minified. It supports browsers, Node.js, ES modules, CommonJS, and other JavaScript environments while keeping the API deliberately smaller than bignumber.js or decimal.js. -
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chatgpt.js
A powerful, open source client-side JavaScript library for ChatGPT
A powerful client-side JavaScript library for ChatGPT. chatgpt.js is a powerful JavaScript library that allows for super easy interaction w/ the ChatGPT DOM. chatgpt.js was written w/ ultra flexibility in mind. -
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clipboard.js
A modern approach to copy text to clipboard
clipboard.js offers a better, more modern approach to copying text from the clipboard. It isn’t dependent on Flash or any bloated framework, just 3kb gzipped. clipboard.js eliminates all the hassles that come with copying text to the clipboard, such as the many steps needed to configure, or the hundreds of KBs you need to load. With clipboard.js you can copy content from another element, cut text from another element, and copy text from attribute. It supports most popular browsers and gracefully degrades if you need to support older browsers. -
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decimal.js
An arbitrary-precision Decimal type for JavaScript
decimal.js is a JavaScript library that provides an arbitrary-precision decimal data type designed to overcome the limitations of native floating-point arithmetic in JavaScript. It allows developers to perform accurate calculations with numbers of virtually unlimited precision, making it especially useful for financial, scientific, and high-precision applications. Unlike standard JavaScript numbers, which can produce rounding errors due to binary representation, decimal.js ensures consistent and predictable results by operating on decimal values directly. The library defines a Decimal constructor that accepts numbers, strings, or existing Decimal instances, enabling flexible usage across different input types. It supports a wide range of mathematical operations, including arithmetic, logarithmic, trigonometric, and exponential functions, making it significantly more comprehensive than simpler numeric libraries. -
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emotion
CSS-in-JS library designed for high performance style composition
Emotion is a library designed for writing css styles with JavaScript. It provides powerful and predictable style composition in addition to a great developer experience with features such as source maps, labels, and testing utilities. Both string and object styles are supported. There are two primary methods of using Emotion. The first is framework agnostic and the second is for use with React. Similar to the style prop, but also has support for auto vendor-prefixing, nested selectors, and media queries. Allows developers to skip the styled API abstraction and style components and elements directly. The css prop also accepts a function that is called with your theme as an argument allowing developers easy access to common and customizable values. Reduces boilerplate when composing components and styled with emotion. Server side rendering with zero configuration. -
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glMatrix
Javascript Matrix and Vector library for High Performance WebGL apps
Javascript has evolved into a language capable of handling realtime 3D graphics, via WebGL, and computationally intensive tasks such as physics simulations. These types of applications demand high performance vector and matrix math, which is something that Javascript doesn't provide by default. glMatrix to the rescue! glMatrix is designed to perform vector and matrix operations stupidly fast! By hand-tuning each function for maximum performance and encouraging efficient usage patterns through API conventions, glMatrix will help you get the most out of your browsers Javascript engine. -
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mall-admin-web
frontend component of the “mall” e-commerce system
mall-admin-web is the frontend component of the “mall” e-commerce system, implemented in Vue (plus Element UI) to deliver the backend management interface: product management, order management, member management, promotions, operations, content, statistics and settings. It demonstrates how a modern single-page application can be structured to integrate with the backend services described in the learning / microservice projects, including authentication (JWT or token), REST APIs, role/permission management and real-time dashboards. The codebase offers modular UI architecture, Vue component patterns, dynamic menu and permission handling, and visualization of statistics and reports. For teams building an admin portal or internal operations system, this project provides a concrete blueprint for UI design, API integration, state management and role-based access control. It also shows how to work with enterprise features (search, pagination, batch actions, uploads) in a consistent framework. -
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redux-router
Redux bindings for React Router
The redux-router project is a library that integrates React Router with Redux by storing routing state directly inside the Redux store. This approach allows developers to treat navigation as part of the global application state, enabling consistent state management across the entire app. By synchronizing route changes with Redux actions, it becomes easier to trigger navigation programmatically and respond to route updates using familiar Redux patterns. The library maintains compatibility with the existing React Router API, ensuring that standard components and navigation methods continue to work seamlessly. It also enables advanced capabilities such as time-travel debugging, where navigation history can be replayed using Redux DevTools. Additionally, it supports serialization and deserialization of routing state, making it useful for server-side rendering and debugging scenarios. -
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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. -
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tmi.js
Javascript library for the Twitch Messaging Interface
Connect to and interact with Twitch chat (IRC) from Node.js or a browser. Control the delay in milliseconds between JOIN requests when using the channels array option. Minimum of 300 milliseconds. If the identity has special permission from Twitch for a higher join rate then you should implement your own calls to the client.join method. Disable receiving JOIN/PART events for other users. Good for decreasing network traffic when joining lots of channels or you don't care about this data. After a threshold per channel Twitch stops sending this data so it may not be necessary for all cases. Channels to automatically join upon connecting. The rate of joins is controlled by the options.joinInterval option. Automatically reconnect the client if it gets disconnected for any reason. Sometimes Twitch will request the client to reconnect and tmi.js will disconnect and reconnect even if this option is set to false. -
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vapor.js
The World's Smallest & Fastest JavaScript Library
vapor.js is a joke JavaScript framework presented as the smallest and fastest library possible. Its central joke is that it provides functionality in zero lines of code, making it a parody of lightweight framework marketing. The repository includes files and packaging artifacts, but the actual concept is intentionally empty. It can be “used” by including an empty script tag or omitting the script entirely. The project became a humorous reference point in the JavaScript community because it satirizes exaggerated performance claims and framework minimalism. It is useful mainly as developer humor, historical internet culture, and a playful reminder that sometimes the fastest dependency is no dependency. -
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fragment-donor-sdk
MIT SDKs for a Telegram Stars/Premium API in seven runtimes.
Independent MIT-licensed server SDKs for the Fragment Donor public API in Python, TypeScript, PHP, .NET, Go, Rust and Ruby. The private production backend and its history are not part of this project. The SDKs cover username and Premium lookup, wallet balance, and intended Stars/Premium gifting through a form-urlencoded contract. Purchase calls are not retried automatically, and no idempotency guarantee is claimed. Mocked contract and package tests make no real purchases. English, Russian and Uzbek documentation is available from the canonical GitHub project. This is not an official Telegram, Fragment or TON product. -
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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. -
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LombokCharts
Canvas and SVG renderers, LTTB decimation,real-time streaming layer
LombokCharts A zero-dependency charting library for the browser. It pairs a small grammar-of-graphics core (Data → Scale → Mark) with pluggable Canvas and SVG renderers, LTTB decimation, and a real-time streaming layer — so the same API draws a five-point bar chart or a five-million-point line without changing shape. -
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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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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: -
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jit enables lazy loading of javascript resources by injecting proxy functions that will load the required script the first time they are used.
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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! -
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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.
