Open Source JavaScript Libraries - Page 18
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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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Q
A promise library for JavaScript
Q is a JavaScript promise library created before native promises became standard across modern browsers and Node.js. It lets asynchronous functions return promise objects representing future values or errors instead of relying entirely on nested callbacks. Promise chains flatten asynchronous control flow and automatically propagate failures toward shared error handlers. The library provides deferred objects, combinators, delays, timeouts, callback adapters, and utilities for composing asynchronous operations. It can interoperate with promise implementations from libraries such as jQuery, Dojo, When.js, and WinJS. Q was distributed for browsers, CommonJS, AMD, Bower, and other historical JavaScript environments. The repository is now archived, and its maintainers recommend native JavaScript promises for new development. -
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QBPWCF
PHP library for not only web-based application in Fedora Linux
此專案的目的是要建立簡單、易用、參數說明完整且富有調整性的PHP元件庫，讓PHP程式設計開發者可以輕鬆地建立高度客製化的應用。 套用當代的術語而言，就是要作為LOW CODE平台的函式庫。 -
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Qoa
Minimal interactive command-line prompts library
Qoa is a lightweight command-line prompt library for Node.js. It helps developers collect user input through simple, interactive, and configurable terminal prompts. The library has no external dependencies, which makes it small, fast, and easy to add to CLI tools. It includes seven prompt types, covering plain input, confirmation, password-style hidden input, single-key input, quizzes, and navigable choices. Qoa can run prompts sequentially through one async prompt function or individually through each prompt’s own async method. It is best suited for developers who want clean terminal interactions without adding a heavy prompt framework. -
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QuadTree JS
QuadTree JS is a library for game developers
QuadTree JS is a library implemented in JavaScript for game developers whose want to reduce number of intersection detections in they games. It's licensed on LGPL v3. -
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QuickChart
Chart image and QR code web API
Generate chart images with a simple, open API. Add charts to emails, reports, and anywhere else. Over 3 billion charts are rendered for users around the world. We're built on Chart.js, the most popular open-source charting library. We'll render any Chart.js configuration. Let's get creative! You can use all static customization options available in Chart.js. Visit our chart gallery to see different chart types and plugins: bar charts, line graphs, pie charts, and much more. QuickChart easily integrates with many no-code tools. Use our no-code chart maker to create custom chart templates that you can embed dynamically in spreadsheets, Airtable, Bubble, AppSheet, Thunkable, and many other no-code tools. Rendering at scale is difficult and resource intensive. We've put a lot of working into taking care of the most difficult parts so you can focus on building your application. -
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RAIN is a JavaScript API under development for the new CodeMeteor website. It contains functions and classes to make it easier to write JavaScript based websites.
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REINFORCEjs
Reinforcement Learning Agents in Javascript
REINFORCEjs is a JavaScript reinforcement-learning library built to demonstrate several major RL algorithms directly in the browser. It includes dynamic programming methods for finite environments and tabular temporal-difference learning with SARSA and Q-learning. A Deep Q-Learning agent extends Q-learning to continuous state features through neural-network function approximation. The project also experiments with stochastic and deterministic policy gradients and actor-critic methods for continuous action spaces. Its API separates reusable neural-network utilities from reinforcement-learning agents. Interactive Gridworld, PuckWorld, and WaterWorld demos make the algorithms easier to inspect visually. The library is primarily educational and exposes the learning loop in compact JavaScript code. -
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RTCMultiConnection
RTCMultiConnection is a WebRTC JavaScript library
RTCMultiConnection is a JavaScript library for building peer-to-peer WebRTC applications in the browser. It helps developers create audio calls, video calls, screen sharing, file sharing, and media streaming experiences. The project abstracts many low-level WebRTC details so applications can focus on rooms, sessions, users, and media behavior. It works with a separate Socket.IO signaling server that handles connection setup between peers. The repository includes demos, documentation links, installation guidance, and integration notes for Node.js applications. It is useful for developers prototyping real-time communication apps without building every WebRTC layer manually. -
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RWD Freeze Table
RWD Table with freezing head and columns for jQuery
RWD Table with freezing head and columns for jQuery. Freeze the head rows and columns for a large table with RWD. Optional features such as Freeze Scroll Bar. Namespace support for multiple tables. -
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Raken, web service controller, is based on JSON as a data definition language. it utilizes simple protocol, optional asynchronous interaction, recovery, localization, security, caching, batch, and multi-part messaging.
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Raphaël
JavaScript vector library
Raphaël is a small JavaScript library that should simplify your work with vector graphics on the web. If you want to create your own specific chart or image crop and rotate widget, for example, you can achieve it simply and easily with this library. Raphaël ['ræfeɪəl] uses the SVG W3C Recommendation and VML as a base for creating graphics. This means every graphical object you create is also a DOM object, so you can attach JavaScript event handlers or modify them later. Raphaël’s goal is to provide an adapter that will make drawing vector art compatible cross-browser and easy. Raphaël currently supports Firefox 3.0+, Safari 3.0+, Chrome 5.0+, Opera 9.5+ and Internet Explorer 6.0+. Versions will be released as we gather and test new PRs. As there are a lot of browsers being supported it might take a while to accept a PR, we will use the feedback from other users too. You can use the raphaelTest.html to try things, you need to start a server in the root dir to start testing things there. -
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It's an infrastructure helps engineers to develop enterprise software solutions in Microsoft .NET easily and productively which consists of an extendable and maintainable web system architecture with a suite of generic business model, APIs and servi
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RateIt
Rating plugin for jQuery. Fast, Progressive enhancement, touch support
Rating plugin for jQuery. Fast, Progressive enhancement, touch support, customizable (just swap out the images, or change some CSS), Unobtrusive JavaScript (using HTML5 data-* attributes), RTL support, supports as many stars as you'd like, and also any step size. Although it does the same job as the rest of the jQuery star rating plugins, the main difference is its simplicity. Most plugins create an element for each (partial) star, be it a div with a star background, or an img tag. Each of these tags gets a hover event, and a click event. And on these hover/click events it has to go and talk to the other stars, telling them to change their state. -
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ReCaptcha plugin for Kooboo CMS
ReCaptcha Validator Plugin for Kooboo CMS for add content or send mail
ReCaptcha Validator Plugin for Kooboo CMS for adding content or sending feedback e-mail -
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React Beautiful DnD
Beautiful and accessible drag and drop for lists with React
React Beautiful DnD is a drag-and-drop library for React that emphasizes fluid motion, accessibility, and natural constraints. It provides Draggable and Droppable primitives that manage state, sensors, and reordering logic for you, so you focus on rendering. Keyboard support, screen-reader announcements, and predictable focus handling make interactions accessible beyond the mouse. The library computes dimensions and movement carefully to avoid jank, including automatic scrolling and collision handling when lists overflow. It supports common patterns like reordering within a list, moving items between multiple lists, and integrating with virtualized lists. Clear lifecycle callbacks expose what changed during a drag so you can persist updates or trigger side effects reliably. -
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React Demos
A collection of simple demos of React.js
This repository is a curated collection of small, focused React examples intended to illustrate core concepts through runnable code. Each demo isolates a single idea—such as component composition, state and props, lifecycle hooks, or event handling—so learners can see cause and effect without framework noise. The code favors clarity over abstraction, making it easy to copy, tweak, and compare different approaches to the same problem. Many examples are deliberately minimal, showing just enough HTML, CSS, and JavaScript to highlight the React pattern being taught. The structure encourages hands-on learning: open a demo, modify a prop or state update, and observe how the UI reacts. It works well as a study companion for beginners or as a quick refresher before building larger applications. -
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React Desktop
React UI Components for macOS High Sierra and Windows 10
react-desktop is a JavaScript library built on top of Facebook's React library, which aims to bring a native desktop experience to the web, featuring many macOS Sierra and Windows 10 components. react-desktop works perfectly with NW.js and Electron.js, but can be used in any JavaScript powered project! Use npm as your package manager to install the stable version. This library has been created to bring a native desktop experience to the web. It works extremely well with tools such as node-webkit or Electron.js. Everyone is welcome to contribute and add more components/documentation whilst following the contributing guidelines. Some of the available options and components that can be added are boxes, buttons checkboxes, dialogues, labels, links, list views, progress circles, radio, search fields, text, title bars, toolbars, and many more. -
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React Developer Roadmap
Roadmap to becoming a React developer
React Developer Roadmap is an open-source educational guide that outlines the knowledge and technologies needed to become a React developer. Originally created as a 2019 learning roadmap, it presents a visual progression from fundamental web development to advanced frontend practices. Beginners can explore HTML, CSS, JavaScript, Git, HTTP, and command-line skills. The guide then introduces React components, state management, routing, and application architecture. Additional recommendations cover testing, styling solutions, static typing, and development tools. Curated educational resources help learners investigate individual topics and choose suitable technologies. The roadmap is available in several languages, including English, Spanish, Chinese, Japanese, Korean, Portuguese, and Russian. It is a historical learning reference rather than a continuously updated course. -
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React Native Extended StyleSheet
Extended StyleSheets for React Native
React Native Extended StyleSheet is a drop-in styling extension for React Native that adds capabilities beyond the standard StyleSheet API. It lets developers define global and local variables for reusable styling values. Media queries and relative units make layouts more adaptable to different screen sizes. The library supports dynamic themes that can recalculate application styles when theme variables change. It also provides percentages, mathematical expressions, scaling, pseudo-classes, caching, and function-based values. The project is deprecated and no longer receives updates or support. -
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React Native Vector Icons
Customizable Icons for React Native with full styling
Perfect for buttons, logos and nav/tab bars. Easy to extend, style and integrate into your project. If you want to use any of the bundled icons, you need to add the icon fonts to your Xcode project. For each platform (iOS/Android/Windows) you plan to use, follow one of the options for the corresponding platform. Upgrading this package often requires the font files linked to your projects to be updated as well. If the automatic linking works for you, running this again should update the fonts. You can either use one of the bundled icons supported or roll your own custom font. Since Icon builds on top of the Text component, most style properties will work as expected, you might find it useful to play around with background color, border width, border color, border radius, padding, margin, color, font size, etc. -
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React Native for Web
React Native Components and APIs for the Web
React Native for Web is an accessible implementation of React Native's Components and APIs that is interoperable with React DOM. Accessible HTML. Support different devices and input modes, render semantic tags. High-quality interactions. Support gestures and multiple input modes (touch, mouse, keyboard). Reliable styles. Rely on scoped styles and automatic vendor-prefixing. Support RTL layouts. Responsive containers. Respond to element resize events. Incremental adoption. Interoperates with existing React DOM components. Bundle only what you use. React Native for Web is used in production web apps by Twitter, Flipkart, Uber, Major League Soccer, and many others. It also powers web support in multi-platform React projects such as Expo, React Native Elements, React Native Paper, and React Native Base. -
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React Projects
Collection of React example / tutorial projects
This repository is a collection of small-to-medium React applications that showcase practical patterns, from stateful widgets to multi-page interfaces. Each project is self-contained and demonstrates specific techniques—hooks for state and effects, context for global state, custom hooks for reuse, and reducer patterns for complex updates. The codebases include common UI tasks like forms, modals, lists, filtered search, and pagination, along with data fetching and basic routing where appropriate. Because every project focuses on a narrow set of concepts, learners can clone a single folder, run it, and grasp the idea without wading through a monolith. The examples are structured to be approachable yet idiomatic, encouraging good habits while staying close to what developers actually build. Over time, the collection functions as a portfolio of reference implementations that students and practitioners can adapt to new projects. -
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React Rainbow
React Rainbow Components. Build your web application in a snap
React Rainbow is a collection of components that will reliably help you build your application in a snap. Give it a hack and let us know what you think. We designed each component with i18n in mind. Any new component or feature we may add in the future has to be able to work fully in different locales. Proper documentation based on interactive examples to help you understand the features of each component. We know how important it for you is to test your UI. Our npm package provides a webdriver.io page object for almost every component. Our components are test infected. We like to test our components as much as possible. -
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React Slick
React carousel component
This library is the port of jQuery slick library. React slick is a carousel component built with React. It is a react port of slick carousel. The easiest way to try out react-slick is using the Code Sandbox example. After you are done installing through yarn or npm, now you will have to include CSS in your project. But be aware slick-carousel has a peer-dependancy on jQuery which you, or your colleagues may not like to see in your console output, so you can always grab the CSS from there and convert it into any CSS in JS solution that you might be using. -
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React Sortable HOC
Turn any list into an animated, accessible and sortable list
The React Sortable HOC project is a higher-order component library for React that enables drag-and-drop sorting of lists and collections. It provides a set of utilities that allow developers to create sortable interfaces with smooth animations and minimal effort. The library is built on top of React’s component model, making it easy to integrate into existing applications. It supports features such as keyboard accessibility, customizable drag handles, and dynamic list updates. The system is designed to handle both simple and complex sorting scenarios, including nested lists and grid layouts. It also includes performance optimizations to ensure smooth interactions even with large datasets. Overall, react-sortable-hoc offers a flexible and efficient way to implement sortable UI components in React applications.
