Open Source JavaScript Libraries - Page 15
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JavaScript Libraries
View 75 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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The Open Source Mobile Widget Platform is an Orange initiative to bring a complete software stack (client and server side) for distribution of mobile widgets on Java feature phones. http://www.orange.com/fr_FR/presse/communiques/cp101001fr2.jsp
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Oat UI
Ultra-lightweight, zero dependency, semantic HTML, CSS, JS UI library
Oat is an ultra-lightweight front-end UI library designed to automatically style semantic HTML using minimal CSS and JavaScript with zero external dependencies. The project focuses on simplicity and performance, allowing developers to create clean, modern interfaces without relying on heavy frameworks or complex build systems. Oat works by applying sensible default styling directly to standard HTML elements, meaning developers can achieve polished layouts with little to no custom classes. Its small footprint makes it especially attractive for static sites, documentation, prototypes, and low-overhead web applications. The library can be installed via npm, CDN, or direct download, making it flexible across different development workflows. Overall, Oat prioritizes minimalism, speed, and developer ergonomics for teams that want attractive UI results with extremely low complexity. -
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Oboe.js
A streaming approach to JSON
Oboe.js is a streaming approach to JSON. Oboe.js speeds up web applications by providing parsed objects before the response completes. Oboe.js is an open source Javascript library for loading JSON using streaming, combining the convenience of DOM with the speed and fluidity of SAX. It can parse any JSON as a stream, is small enough to be a micro-library, doesn't have dependencies, and doesn't care which other libraries you need it to speak to. We can load trees larger than the available memory. Or we can instantiate classical OOP models from JSON, or completely transform your JSON while it is being read. Oboe makes it really easy to start using json from a response before the ajax request completes. Or even if it never completes. -
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Ohm
A library and language for building parsers, interpreters, compilers
Ohm is a parsing toolkit consisting of a library and a domain-specific language. It allows developers to define grammars and build parsers, interpreters, and compilers with ease, facilitating language design and processing tasks. -
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That project aims at delivering a reference implementation of a library, estimating and serving average prices paid for air travel products. It is not intended for use by an actual airline, but rather by simulators or other airline-related modules of
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OpenZeppelin Contracts
OpenZeppelin Contracts is a library for secure smart contracts
A library for secure smart contract development. Build on a solid foundation of community-vetted code. OpenZeppelin Contracts uses semantic versioning to communicate backward compatibility of its API and storage layout. To keep your system secure, you should always use the installed code as-is, and neither copy-paste it from online sources nor modify it yourself. The library is designed so that only the contracts and functions you use are deployed, so you don't need to worry about it needlessly increasing gas costs. Reduce the risk of vulnerabilities in your applications by using standard, tested, community-reviewed code. -
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Opensource
Delivering delightful digital solutions
This repository by tunnckoCore serves as a hub for various open-source projects and initiatives. It includes tools, libraries, and resources aimed at improving developer workflows and promoting open-source collaboration. -
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OrgChart
It's a simple and direct organization chart plugin
It's a simple and direct organization chart plugin. Anytime you want a tree-like chart, you can turn to OrgChart. -
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A PHP encapsulation of the AJAX sack library so that developers need only code in PHP to implement AJAX, Feedback will be good to improve this component set. Now supporting cross browser drag and drop events, no other library dependencies.
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Pac-Man
Pac-Man game written in HTML5 + CSS3 + jQuery with Canvas
Pac-Man game written in HTML5 + CSS3 + jQuery with Canvas. This WebApp is a Responsive Web Design (RWD) website. -
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This is a component to create dinamic database queries from a check list view. You can set a db object (views/tables/etc) to select columns to be shown in the main checklist to build a query based in the check selection. Add dinamic (sql) or static HTML selects to filter results through wheres with few lines. Create dinamic XLSX reports easily (XLSXWritter)
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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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Pattern Lab Node
The Node version of Pattern Lab
This monorepo contains the core of Pattern Lab / Node and all related engines, UI kits, plugins, and utilities. Pattern Lab helps you and your team build thoughtful, pattern-driven user interfaces using atomic design principles. -
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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 3 Webpack Loader
Asset loader for Phaser + Webpack.
Phaser Webpack Loader is a plugin that streamlines the process of loading game assets in Phaser projects using Webpack. It facilitates parallel asset loading and integrates with Webpack's module system for efficient game development. -
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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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Polymer
A Web Component library
Polymer is a lightweight Web Components library that lets you create encapsulated Web Components that work just like standard HTML elements. These elements can be used in building web applications and are reusable. Polymer can be particularly useful when building UI components. Instead of having to constantly rebuild components such as a specific navigation bar or button in different frameworks and for different projects, simply define this component once with Polymer, and you can use it again and again in your future projects. Because Polymer is built on top of the web standards-based Web Components APIs, custom HTML elements made from it are built totally from the platform up and are interoperable across frameworks. Polymer also works across all major browsers. -
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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.
