Open Source JavaScript Libraries - Page 17
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JavaScript Libraries
View 74 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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Parsley
Validate your forms, frontend, without writing a line of javascript
Parsley, the ultimate JavaScript form validation library. Validating forms frontend have never been so powerful and easy. Like no other form validation library, simply write in English your requirements inside your form HTML tags, Parsley will do the rest! No need to write even a single JavaScript line for simple form validation. Parsley is now smarter, it automatically detects your forms' modifications and adapts its validation accordingly. Simply add, remove or edit fields, Parsley validation will follow! Parsley is shipped with more than a dozen useful validators. If not enough, use the awesome Parsley extra Ajax validator or tons of other extended validators provided by the community. Parsley strongly focuses on #UI and #UX. Override almost every Parsley default behavior to fit your exact needs. Still ships almost bug free. Parsley is strongly tested, and aims to work on every browser (including IE8). -
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PassJS
Giving a Cross-Browser JavaScript
This library tries to hide differences between JavaScript implementations across browsers. This library is Licenced under the GNU GPLv3 Licence. -
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PathFinding.js
A comprehensive path-finding library for grid based games
The aim of this project is to provide a path-finding library that can be easily incorporated into web games. It may run on Node.js or the browser. It comes along with an online demo to show how the algorithms execute. (The pathfinding speed is slowed down in the demo). Note that this project only provides path-finding algorithms for 2D space. If you need to work in a 3D environment, then you may use @schteppe's fork. When instantiating path-finders, you may pass in additional parameters to indicate which specific strategies to use. For all path-finders, you may indicate whether diagonal movement is allowed. The default value is false, which means that the path can only go orthogonally. When diagonal movement is enabled, you might want to prevent the path from touching the corners of the occupied grid blocks. This is usually desirable if the objects using the path have physical width and can also move between the grid cells. -
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Permit
An unopinionated authentication library for building Node.js APIs
This project is an unopinionated authentication library for Node.js APIs that focuses on adding an auth layer without forcing a specific framework or application style. It’s built to slot into popular server stacks like Express, Koa, Hapi, or Fastify, and it stays compatible with different API styles including REST and GraphQL. The library concentrates on the core authentication schemes many APIs need, including bearer token authentication and basic username/password credentials. It also supports pulling credentials from common request locations, prioritizing standards-based headers while allowing practical alternatives when needed. The design aims to keep authentication logic centralized and consistent, so you avoid copy-pasting auth checks across handlers and middleware. In short, it provides a small, reusable abstraction for authenticating requests that you can adapt to your project’s policies and user model. -
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Phaser Raycaster
Raycasting plugin for Phaser 3
Phaser Raycaster is a plugin for Phaser 3 that implements raycasting functionality, enabling developers to simulate visibility, lighting, and field-of-view mechanics in their games. -
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PhotoJShop
Photo editing JavaScript library
PhotoJShop is a JavaScript library for photo editing using the canvas and kernel convolution matrixes, aiming to reproduce the most usual filters. A demo of its capabilities can be seen in Nuophoto, a project that uses this library for all the editing. The idea is to provide a simple library to developers that will allow quick integration of photo filters to their website. After including jQuery, include photojshop.jquery.js. Once loaded you simply need to call it on a valid element. You have to ensure that the element has loaded, $(document).ready() doesn't mean images have loaded. -
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PowerTip
A jQuery plugin that creates hover tooltips
PowerTip is a jQuery tooltip plugin with some advanced features like hover intent testing, tooltip queueing, and support for complex data. -
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PrimeReact
The Most Complete React UI Component Library
Elevate your web applications with PrimeReact's comprehensive suite of customizable, feature-rich UI components. With PrimeReact, turning your development vision into reality has never been easier. The ultimate set of UI Components to assist you with 80+ impressive React Components. Choose from a variety of pre-built themes or implement your design systems with the CSS library of your choice like TailwindCSS. Connect with the other open-source community members, collaborate, and have a voice in the project roadmap. Compliant with the Web Content Accessibility Guidelines (WCAG 2.0). Exceptional support service featuring response within 1 business day and the option to request enhancements and new features for the library. First-class support for responsive design led by touch-optimized elements. 400+ pre-designed copy paste ready UI blocks to build spectacular apps in no time. -
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PrimeVue
Next Generation Vue UI Component Library
PrimeVue is a full-featured UI component suite for Vue.js that provides developers with a rich set of customizable components, templates, and design resources for building modern web applications. It is part of the broader Prime ecosystem, which includes similar libraries for other frameworks, and is designed to maximize developer productivity through reusable UI building blocks. The library offers dozens of components covering common interface needs such as forms, data tables, charts, navigation, and layout systems, along with advanced features like accessibility compliance and responsive design. PrimeVue supports both styled and unstyled modes, allowing developers to either use built-in themes or fully customize the appearance using external CSS frameworks like Tailwind. Its architecture includes a monorepo structure with modular packages for core functionality, icons, themes, and integrations with tools like Nuxt. -
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Protip
A new generation jQuery Tooltip plugin
A new generation jQuery Tooltip plugin. -
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Prudence is an open source container and framework for scalable web frontends and network services, based on proven REST principles. It comes in several flavors: Python, Ruby, Clojure, JavaScript, PHP and Groovy.
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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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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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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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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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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 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. -
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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.
