Open Source JavaScript Libraries - Page 9
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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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C3.js
A D3-based reusable chart library
C3 makes it easy to generate D3-based charts by wrapping the code required to construct the entire chart. We don't need to write D3 code any more. C3 gives some classes to each element when generating, so you can define a custom style by the class and it's possible to extend the structure directly by D3. C3 provides a variety of APIs and callbacks to access the state of the chart. By using them, you can update the chart even after it's rendered. C3 enables deeper integration of charts into your application. Because of the dependence on D3, C3 supports only modern browsers D3 supports. For IE9 and IE10, polyfill is required because c3 uses MutationObserver, which is not supported in those versions. However, it's not required if charts always will be binded to the DOM specified by bindto because MutationObserver is not called in that case. -
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CF Workers Status Page
Monitor your websites, showcase status including daily history
Monitor your websites, showcase status including daily history, and get Slack notifications whenever your website status changes. Using Cloudflare Workers, CRON Triggers, and KV storage. -
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CHAP Links Library is a web based visualization library for displaying graphs, networks, and timelines. The tools are developed as Google Visualization Charts for Javascript and GWT. Links Library is part of CHAP, the Common Hybrid Agent Platform. This project has been moved to Github. Please visit http://almende.github.com/chap-links-library/
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CSSgram
CSS library for Instagram filters
Simply put, CSSgram is a library for editing your images with Instagram-like filters directly using CSS. What we're doing is adding filters to the images, as well as applying color and/or gradient overlays via various blending techniques to mimic filter effects. This means less manual image processing and more fun filter effects on the web! We are using pseudo-elements (i.e. :before and :after) to create the filter effects, so you must apply these filters on a containing element (i.e. not a content-block like <img>. The recommendation is to wrap your images in a <figure> tag. If you use custom naming in your CSS architecture, you can add the .scss files for the provided styles within your project and then @extend the filter effects within your style definitions. Mixins allow for multiple filter arguments to be passed into your classes. This is useful for if you want to add filters in addition to the ones provided (i.e. add a blur). -
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A lightweight JavaScript calendar widget for the Prototype framework with an emphasis on standards-compliance and current best practices.
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Cancelable Async Flows
Cancelable Async Flows (CAF)
CAF (Cancelable Async Flows) is a small utility that brings cooperative cancellation to JavaScript async workflows. It wraps async generators or promise-returning functions so they can respond to a cancel signal and halt work early, preventing wasted CPU and stray side effects. The library encourages a disciplined pattern: pass a token into your task, periodically check it, and unwind gracefully when cancellation is requested. This approach avoids brittle timeouts and “fire-and-forget” leaks by making cancellation a first-class concern. CAF is framework-agnostic and pairs well with fetch, timers, or custom async primitives, giving you a consistent contract for stopping in-flight operations. The result is safer UI interactions and services that don’t keep doing work the user no longer needs. -
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Chakra UI Vue
Build scalable and accessible Vue.js applications with ease.
Build scalable and accessible Vue.js applications with ease. Chakra UI Vue gives you a set of accessible and composable Vue components that you can use to build your favorite applications and sites. Chakra UI strictly follows WAI-ARIA standards. All components come with proper attributes and keyboard interactions out of the box. Quickly and easily reference values from your theme throughout your entire application, on any component. Components were built with composition in mind. You can leverage any component to create new things. -
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Chart.xkcd
xkcd styled chart lib
Chart.xkcd is a chart library plots “sketchy”, “cartoony” or “hand-drawn” styled charts. It’s easy to get started with chart.xkcd. All that’s required is the script included in your page along with a single <svg> node to render the chart. You can install chart.xkcd via script tag in HTML or via npm. Line chart displays series of data points in the form of lines. It can be used to show trend data, or comparison of different data sets. XY chart is used to plot points by specifying their XY coordinates. A bar chart provides a way of showing data values represented as vertical bars. A stacked bar chart provides a way of showing data values represented as vertical bars. Display labels near every line (default false). Customize tick numbers you want to see on the main line. You can change size of the dots if you want. -
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Chat UI Kit React
Build your own chat UI with React components in few minutes
Build your own chat UI with React components in a few minutes. The Chat UI Kit from Chatscope is an open-source UI toolkit for developing web chat applications. Tired of struggling with sticky scrollbars, content editable, responsiveness, and CSS hacks? This kit is for you. Headless chat library, React hook for state management in chat applications. -
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Chinese Poetry
The most comprehensive database of Chinese poetry
This repository is a curated collection of Chinese poems and poets organized into catalogs, metadata, and text representations suitable for research, creative and cultural use. It includes major dynastic corpora, such as Tang and Song poems, as well as biographical and categorization data. Each poem entry is structured with fields like author, dynasty, title, content, and sometimes annotations or alternate versions. Developers and scholars can build tools that query by author, era, keyword, or poetic form using the standardized data structure. Because the project is open, contributors improve metadata, correct text variants, and maintain consistency across classical collections. The corpus enables digital humanities, poetry apps, styling tools, and creative projects that intermix poems with translation, visualization, or musical settings. -
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ChineseBQB
Chinese sticker pack, more joy/museum of emoticon
ChineseBQB is an openly shared repository of Chinese-style stickers and memes, essentially a “meme pack / sticker museum” — curated and maintained to collect, categorize, and make accessible a large collection of expressive GIFs and images often used in chats. The repository organizes stickers contributed by many people, and uses a Node.js build script to automatically generate an index of all images, so that users can browse the entire gallery online. The goal is cultural and social: making it easy for “sticker warriors” to find, contribute, and reuse Chinese-style memes for chat, social media, or projects. Because all assets are stored in the repo (or can be downloaded via Git), the collection is transparent, free to use (subject to any licensing / reuse norms), and publicly visible — so contributors get credit for their submissions. -
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ChromeAppHeroes
Chinese manual for excellent Chrome plug-ins
ChromeAppHeroes appears to be a repository with sample or template Chrome apps/extensions — perhaps intended to help developers learn how to build Chrome applications, quick prototypes, or small utilities. As such, it likely includes boilerplate code, manifest definitions, example UI components, and sample functionality (e.g. browser-action buttons, content scripts, background scripts) to illustrate how to structure a Chrome app. For learners or developers new to Chrome extension/app development, ChromeAppHeroes could serve as a starting kit: instead of starting from scratch, they can clone or fork the repo and immediately begin building features, thereby speeding up development. The repository’s open-source nature means users are free to adapt, extend, or repurpose the sample apps to their own needs — for example, privacy tools, quick productivity extensions, or custom browser tooling. -
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Classnames
A simple javascript utility for conditionally joining classNames
Classnames is a minimal JavaScript utility that helps you construct CSS class strings based on conditional logic. Instead of manually concatenating strings, developers can pass any combination of strings, arrays, or objects, and the library will output a clean, space-separated class list. When you provide an object, the keys represent class names and the boolean values determine whether each class should be included in the final string. This reduces boilerplate and the risk of typos or stray spaces, especially in React, Vue, or other component-based UIs where dynamic styling is common. The utility is small and framework-agnostic, so it can be used in Node, browser code, or any bundler setup including Browserify and Webpack. It maintains backwards compatibility while evolving (for example, introducing polyfill requirements for older browsers in newer versions), and it ships with TypeScript bindings for better type safety. -
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Closure Library
Google's common JavaScript library
The Closure Library is a broad, well-tested, modular, and cross-browser JavaScript library. You can pull just what you need from a large set of reusable UI widgets and controls, and from lower-level utilities for DOM manipulation, server communication, animation, data structures, unit testing, rich-text editing, and more. The Closure Library is server-agnostic and is intended for use with the Closure Compiler. The Closure Library serves as the base JavaScript library for many Google products. Now that the Closure Library is open source, more and more developers outside Google are integrating the library in their own projects. If you are developing a large or growing application, you may benefit from the Closure Library's breadth. A well-tested library can insulate you from cross-browser compatibility issues and the minutiae of client-side programming, letting you focus on the fun stuff. -
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Cloudflare-Socks5
CF-workers/pages proxy script: supports Vless-ws (tls) and Trojan-ws
Cloudflare-Socks5 is a proxy deployment toolkit designed to leverage Cloudflare Workers and Pages to create flexible, censorship-resistant proxy nodes using protocols such as VLESS and Trojan. The project provides scripts that enable users to deploy proxy services locally without relying on external subscription providers, improving privacy and control over configuration data. It supports multiple transport modes including WebSocket with TLS, as well as optional encrypted handshake mechanisms like ECH-TLS, standard TLS, or even non-TLS configurations to adapt to different network restrictions. The system is designed with accessibility in mind, offering simplified setup processes that allow users to deploy nodes with minimal configuration, often requiring only a UUID or password. It also includes tools for generating optimized Cloudflare IP selections and supports multiple node formats for compatibility with clients like Clash and sing-box. -
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Common Litt
Simple java script library for auto literation, input tool.
This project focuses of auto conversion in between language alphabets. Using this 'lit.js' library currently you can done conversion in between English - Tamil - Sinhala scrpits vise-versa. This is use full when you need to know how write something in an other given language. This is still at development stage but works purfectly and easy to customize as well. Live demo available at: http://commonlitt.42web.io/ For UI creations I had used Bootstrap and Jquery. For easy array creation using the text based dictionaries, I had used a c sharp program 'LangSeperator' . That is also available here. -
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ConvNetJS
Deep learning in Javascript to train convolutional neural networks
ConvNetJS is a Javascript library for training Deep Learning models (Neural Networks) entirely in your browser. Open a tab and you're training. No software requirements, no compilers, no installations, no GPUs, no sweat. ConvNetJS is an implementation of Neural networks, together with nice browser-based demos. It currently supports common Neural Network modules (fully connected layers, non-linearities), classification (SVM/Softmax) and Regression (L2) cost functions, ability to specify and train Convolutional Networks that process images, and experimental Reinforcement Learning modules, based on Deep Q Learning. The library allows you to formulate and solve Neural Networks in Javascript. If you would like to add features to the library, you will have to change the code in src/ and then compile the library into the build/ directory. The compilation script simply concatenates files in src/ and then minifies the result. -
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Countable
Add live paragraph-, word- and character-counting to an HTML element
Countable is a JavaScript function to add live paragraph-, word- and character-counting to an HTML element. Countable is a zero-dependency library and comes in at 1KB when minified and gzipped. Countable is available as a Node / CommonJS module, an AMD module and as a global. All methods are accessed on the Countable object directly. The on and count methods both accept a callback. The given callback is then called whenever needed with a single parameter that carries all the relevant data. this is bound to the current element. -
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Crossfilter
Fast n-dimensional filtering and grouping of records
Crossfilter is a JavaScript library for exploring large multivariate datasets in the browser. Crossfilter supports extremely fast (<30ms) interaction with coordinated views, even with datasets containing a million or more records; we built it to power analytics for Square Register, allowing merchants to slice and dice their payment history fluidly. Since most interactions only involve a single dimension, and then only small adjustments are made to the filter values, incremental filtering and reducing is significantly faster than starting from scratch. Crossfilter uses sorted indexes (and a few bit-twiddling hacks) to make this possible, dramatically increasing the performance of live histograms and top-K lists. Crossfilter is available under the Apache License. -
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This is a JavaScript library which gives the ability to use cryptographic functionality abstracted of available technologies on the browser side. It executes a cryptographic function with the fastest technology including Java, JavaScript and Flash.
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CubeScribe
Render Rubiks Cube OLL and PLL Algorithm Diagrams with HTML5 & JS
A simple JavaScript class that utilizes the HTML 5 canvas element to render the face diagrams often used to document Rubik's Cube algorithms. -
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CyC2018.github.io
Personal knowledge site built with GitHub Pages
This is a personal knowledge site built with GitHub Pages, organizing computer science notes and study materials in a browsable format. It aggregates content across algorithms, data structures, networking, operating systems, databases, and interview preparation into a coherent index. The presentation emphasizes succinct explanations paired with diagrams, tables, or code snippets to speed recall. Because the site is generated from a repository, it benefits from issue tracking, pull requests, and version history, making it easy to update and maintain. The structure encourages incremental learning: you can dip into a topic, follow internal links, and return later with a clear sense of progress. It doubles as both a study guide for learners and a quick reference for practitioners revisiting fundamentals. -
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D-Parts es un framework para Aplicaciones Web, netamente en lenguaje PHP, con acceso a bases de datos MySQL.
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DO180-apps
DO180 Repository for Sample Applications
DO180-apps is an open source repository maintained by Red Hat Training that provides sample applications for the DO180 course, which focuses on container basics using Red Hat OpenShift. The repository includes multiple small applications written in different languages, such as Node.js, PHP, and simple front-end examples, designed to demonstrate containerization, deployment, and scaling on OpenShift. Learners use these apps to practice building, deploying, and managing workloads in a containerized environment. Each example is lightweight and structured to highlight specific OpenShift capabilities without unnecessary complexity. The repository plays a key role in hands-on labs and exercises for container training. -
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DOMtastic
Small, fast, and modular DOM and event library for modern browsers
Small, fast, and modular DOM and event library for modern browsers. Same familiar API as jQuery (but without the extra "weight" of modules like $.ajax, $.animate, and $.Deferred). Dependency-free. Weighs in at only 1KB to 12KB (minified), depending on the included modules. The full bundle is about 4KB gzipped. DOMtastic also serves as a starting point for your own application-specific DOM API (read more). Rollup and babel are used to create a UMD bundle (supporting AMD, CommonJS, and fallback to browser global).
