Open Source JavaScript Libraries - Page 5
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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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JsAction
JsAction is a small event delegation library
JSAction is a JavaScript framework developed by Google that provides a structured, event-driven architecture for managing user interactions in large-scale web applications. It simplifies event handling by declaratively binding actions to DOM elements through HTML attributes, enabling clean separation between markup and behavior. JSAction helps improve performance, maintainability, and reliability by minimizing the use of inline scripts and global event listeners. It is especially useful in complex front-end environments where efficient event delegation and well-defined interaction flows are crucial. -
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MIT License
Hosted MIT License with details controlled through this repo
The MIT License repository is a simple GitHub project that hosts the full text of the MIT License and provides a stable reference for developers who want to include permissive licensing details in their work. The MIT License itself is one of the most widely used open-source licenses because it allows reuse, modification, distribution, and even proprietary use, as long as copyright notices and license texts are preserved. This repository offers an easy way to copy the license text, understand its legal language, and see example usage in a context that is separate from any specific software project. It can also be useful for automated tooling and templates where a standard license file is needed across multiple repositories or as part of a code generation process. While not a software library or application, the repository serves an important role in open-source governance by centralizing a commonly adopted license with clear formatting. -
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NN-SVG
Publication-ready NN-architecture schematics
Illustrations of Neural Network architectures are often time-consuming to produce, and machine learning researchers all too often find themselves constructing these diagrams from scratch by hand. NN-SVG is a tool for creating Neural Network (NN) architecture drawings parametrically rather than manually. It also provides the ability to export those drawings to Scalable Vector Graphics (SVG) files, suitable for inclusion in academic papers or web pages. The tool provides the ability to generate figures of three kinds: classic Fully-Connected Neural Network (FCNN) figures, Convolutional Neural Network (CNN) figures of the sort introduced in the LeNet paper, and Deep Neural Network figures following the style introduced in the AlexNet paper. The former two are accomplished using the D3 javascript library and the latter with the javascript library Three.js. NN-SVG provides the ability to style the figure to the user's liking via many size, color, and layout parameters. -
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NodeGoat
The OWASP NodeGoat project
A deliberately vulnerable Node.js application designed for security training, helping developers understand common web vulnerabilities and how to mitigate them. -
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Pannellum
Pannellum is a lightweight, free, and open source panorama viewer
Pannellum is a lightweight, free, and open source panorama viewer for the web. Built using HTML5, CSS3, JavaScript, and WebGL, it is plug-in free. It can be deployed easily as a single file, just 21kB gzipped, and then embedded into pages as an <iframe>. A configuration utility is included to generate the required code for embedding. An API is included for more advanced integrations. -
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Prism
Lightweight, robust, elegant syntax highlighting
Prism is a lightweight, extensible syntax highlighter, built with modern web standards in mind. It’s used in millions of websites, including some of those you visit daily. -
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Sprint.js
A tiny, lightning fast jQuery-like library for modern browsers
Sprint is a lightweight DOM manipulation library that provides a familiar jQuery-style interface for modern browsers. Its compressed footprint is about 5 KB, making it useful where bandwidth and JavaScript parsing costs matter. The library exposes a chainable API for selecting elements, changing classes and attributes, manipulating content, traversing the DOM, and handling events. Most method names intentionally mirror jQuery so developers familiar with that library can adapt quickly. Sprint relies on newer native browser APIs and targets environments from Internet Explorer 10 onward rather than maintaining compatibility with much older browsers. Its reduced scope allows faster parsing and execution than the much larger jQuery library in the benchmarks documented by the project. Sprint is positioned as a thin, performance-oriented alternative for projects that only need common DOM operations, not as a complete jQuery replacement. -
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SurveyJS
JavaScript Survey and Form Library
SurveyJS Form Library is distributed as npm packages and as scripts and style sheets that you can reference on your page. You can use it in any React, Angular, Vue, Knockout, or jQuery application. React, Angular, Knockout, and Vue3 are supported natively. To communicate with the server, the libraries use JSON objects that represent form schemas (content and layout of a form) and form results (answers). You have the option to build dynamic JSON-driven forms using our free full-featured form builder demo available on the website. Alternatively, you can integrate the form builder library and create forms using a drag-and-drop UI directly within your own application. With years of development and support behind us, we've assisted hundreds of companies across various industries. With Survey, you can create nearly anything that popular cloud services offer. Furthermore, our library is fully extensible, allowing you to modify its behavior to suit your specific needs. -
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V8 Perf
Notes and resources related to v8 and thus Node.js performance
V8 Perf is an educational collection of notes and resources about V8 internals and JavaScript performance in Node.js. It explains how V8 represents JavaScript data internally and how those representations can influence execution speed. Compiler documentation explores the Ignition interpreter, TurboFan optimizer, optimization decisions, and deoptimization behavior. Memory sections explain heap organization, garbage collection, object references, allocations, and leak investigation. Profiling material covers inspection tools, runtime flags, performance analysis, and flamegraph generation. Additional notes examine snapshots, code caching, runtime functions, and JavaScript language features from a performance perspective. The repository is primarily a technical reference for developers who want to understand why V8 and Node.js code behaves the way it does. -
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aily blockly Libraries
aily blockly library registry
aily Blockly Libraries is the extension registry for the aily Blockly visual hardware development environment. It contains more than 300 libraries that expose sensors, displays, motors, communications, controllers, and other embedded capabilities as programmable Blockly components. Each library defines its visual blocks, Arduino code generator, toolbox configuration, package metadata, and documentation. Source libraries can be bundled alongside the visual integration so projects receive the underlying hardware dependencies they need. Internationalization files provide support for eleven languages. Optional AI-oriented documentation helps language models understand how individual libraries should be used. Automated GitHub Actions validate library structure and compliance before contributions are integrated. -
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cube-ui
Mobile UI library implement by Vue
cube-ui is an elegant mobile component library based on Vue.js. From DiDi interior component library and has been put to business test for more than one year. Every component has full unit tests to provide assurance for continuous integration. Make quick response, fluent animation and close to native components as the goal, and pursue the perfection of the interactive experience. Follow a uniform design interaction standard and highly restore the design; Standardize the interface and unify the way of use, making development more simple and efficient. Lightweight and flexible, support post-compile and importing on demand; High scalability, it is easy to implement secondary development based on existing components. By API invoking, the popup layer is attached to body element whose advantage is that it wouldn't be affected by outer styles. If using component invoking, it's fairly easy to be affected by outer styles like transform, overflow, etc. -
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embed-js
A lightweight plugin to embed emojis, media, maps, tweets, code, etc.
A lightweight JavaScript plugin to embed emojis, media, maps, tweets, code and services. embed.js was developed with a modern JavaScript workflow in mind. To use it, it's recommended you have a build system in place that can transpile ES6, and bundle modules. But at the same time, you get an already transpiled version to make your development easier. If you’re using npm package manager with a module bundler like Webpack or Browserify to consume CommonJS modules, you can use the default UMD build of the plugin by simply requiring it. The render() method renders the resulting string in the block. The .render() method also returns a promise. Optionally you can also pass a string which will be processed by the plugin. -
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fullPage.js
Create beautiful fullscreen scrolling websites fast and easy
fullPage.js is an easy-to-use library for creating beautiful, fullscreen scrolling websites/ onepage sites/ single page websites complete with all the features you need. With fullPage.js you can add landscape sliders and links to sections of your site, create smaller or bigger sections, use extensions and more! fullPage.js is compatible with all modern browsers and even some old ones like IE9 and Opera 12. It also provides touch support designed for mobile devices and touch screen computers. fullPage.js is fully supported by a great community, has good documentation and offers plenty of examples to get you started quickly. See these examples on the official website: http://alvarotrigo.com/fullPage/ -
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jQuery UI
The jQuery user interface library
jQuery UI is a curated set of user interface interactions, effects, widgets, and themes built on top of the jQuery JavaScript Library. Whether you're building highly interactive web applications or you just need to add a date picker to a form control, jQuery UI is the perfect choice. -
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jSuites
Collection of lightweight common required javascript web components
jSuites is a robust collection of lightweight, responsive JavaScript plugins and web components designed to provide common UI building blocks that work across frameworks and platforms while keeping performance and simplicity at the forefront. It includes a broad set of components such as calendars, dropdowns, color pickers, modals, sliders, tags, input masks, context menus, and rich form utilities that help enhance user experience without reinventing the wheel for each project. These components are framework-agnostic, meaning they can be used with plain JavaScript or easily integrated into major frameworks like React, Angular, and Vue, giving developers flexibility in how they adopt them. The suite also offers extended plugins for specialized needs like image cropping, heatmaps, and organograms, broadening its utility for diverse use cases. -
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keymaster.js
A simple micro-library for defining and dispatching keyboard shortcuts
Keymaster is a simple micro-library for defining and dispatching keyboard shortcuts in web applications. It has no dependencies. It’s a work in progress (e.g. beta), so spare me your nerdrage and instead contribute! Patches are welcome, but they are not guaranteed to make it in. Include keymaster.js in your web app*, by loading it as usual. Keymaster has no dependencies and can be used completely standalone. It should not interfere with any JavaScript libraries or frameworks. *Preferably use a minified version that fits your workflow. You can run make to have UglifyJS (if you have it installed) create a keymaster.min.js file for you. At any point in time (even in code other than key shortcut handlers), you can query the key object for the state of any keys. This allows easy implementation of things like shift+click handlers. For example, key.shift is true if the shift key is currently pressed. -
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ssbc
Hand-torn wrapped vegetables website
ssbc is the source code repository for the Shousibaocai website, a Chinese project focused on DHT, torrent, magnet, and search engine technology. The project was open-sourced to support technical exchange and learning around distributed hash table crawling and search applications. Its history includes earlier Django-based work and a later Node.js rewrite. The repository includes crawler-related code under a spider directory, reflecting its emphasis on collecting and indexing distributed network data. It is more of a website and search technology project than a reusable library. Because it relates to torrent and magnet search, users should approach it with attention to copyright, legality, and responsible use. -
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toastr
Simple javascript toast notifications
toastr is a Javascript library for Gnome / Growl type non-blocking notifications. jQuery is required. The goal is to create a simple core library that can be customized and extended. Toastr will supply default animations, so you do not have to provide any of these settings. However you have the option to override the animations if you like. Optionally override the animation easing to show or hide the toasts. Default is swing. swing and linear are built into jQuery. Use the jQuery show/hide method of your choice. These default to fadeIn/fadeOut. The methods fadeIn/fadeOut, slideDown/slideUp, and show/hide are built into jQuery. Rather than having identical toasts stack, set the preventDuplicates property to true. Duplicates are matched to the previous toast based on their message content. Control how toastr interacts with users by setting timeouts appropriately. Visually indicate how long before a toast expires. -
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Administrative Divisions of China
Administrative divisions of the People's Republic of China
Administrative Divisions of China is a structured dataset covering the five administrative levels of the People's Republic of China. It includes provinces, prefecture-level cities, counties and districts, townships and streets, and village-level committees. Data is distributed in JSON and CSV formats for direct use in applications and databases. The repository also provides combined hierarchical datasets for linked province, city, district, township, and village selectors. Records include administrative codes and parent-level relationships so developers can reconstruct geographic hierarchies. The latest dataset is based on 2023 statistical division codes, with a cutoff of June 30, 2023. The project is no longer updated because the relevant detailed statistical codes stopped being publicly released after policy changes in 2024. -
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Cap CAPTCHA
The privacy-first, self-hosted CAPTCHA for the modern web
Cap is a privacy-first, self-hosted CAPTCHA system designed as a modern alternative to traditional third-party verification services. It replaces invasive tracking-based CAPTCHA solutions with a lightweight approach based on proof-of-work and client-side instrumentation. The system can be deployed independently, giving developers full control over user data and verification processes. It integrates easily into web applications and focuses on maintaining usability while preventing automated abuse. Cap avoids reliance on centralized providers, reducing dependency on external services and improving privacy compliance. Its design reflects a shift toward decentralized, user-respecting security mechanisms. It is particularly suited for developers who want transparent and customizable bot protection. -
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Chartist.js
Simple responsive charts
You may think that this is just yet an other charting library. But Chartist.js is the product of a community that was disappointed about the abilities provided by other charting libraries. Of course there are hundreds of other great charting libraries but after using them there were always tweaks you would have wished for that were not included. Are you planning to use Chartist to create a nice Dashboard or Admin UI? Don't loose any time and kickstart your development using the awesome templates by Creative Tim. They include Chartist and come with awesome chart styles! Specifying the style of your chart in CSS is not only cleaner but also enables you to use awesome CSS animations and transitions to be applied to your SVG elements! Note that CSS3 animations on SVG CSS attributes are not supported on all browsers and the appearance may vary. -
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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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DXcharts Lite
Flexible open source financial charting library
Why choose DXcharts Lite? - User-friendly interface. DXcharts Lite provides a seamless intuitive user experience with automatic scale zoom, mouse wheel zoom, and chart scrolling. - Versatile chart types. The Lite version supports eight chart types. The platform streams real-time data updates allowing users to stay on top of market movements. - Comprehensive market coverage. DXcharts Lite provides a wide-ranging selection of asset classes and extensive market coverage. This includes a variety of financial instruments such as stocks, forex, cryptocurrencies, and more. - Efficiency and speed. The platform uses HTML5 based on canvas to ensure smooth chart loading and data processing. - Snapshots. The snapshot feature is a handy tool that allows users to take and share chart snapshots anywhere. - Customisation. The platform offers users the ability to personalise their workspace allowing traders to customise their own theme or choose between the predefined dark or white ones. -
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EaselJS
Work with the HTML5 Canvas element easily
The Easel Javascript library provides a full, hierarchical display list, a core interaction model, and helper classes to make working with the HTML5 Canvas element much easier. A JavaScript library that makes working with the HTML5 Canvas element easy. Useful for creating games, generative art, and other highly graphical experiences. EaselJS provides straight forward solutions for working with rich graphics and interactivity with HTML5 Canvas. It provides an API that is familiar to Adobe Animate developers, but embraces JavaScript sensibilities. It consists of a full, hierarchical display list, a core interaction model, and helper classes to make working with Canvas much easier. Added drawPolygon(), pg() and Polygon() Added commands for drawing a polygon from an array of point arrays [[x,y],[x,y],etc] with tiny API of pg as dp is already taken for polystar. -
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End-To-End
End-To-End is a crypto library to encrypt, decrypt, digital sign
End-to-End was a client-side encryption project that prototyped OpenPGP-compatible, end-to-end encrypted messaging in the browser. The idea was to move cryptographic operations entirely to the user’s machine—key generation, encryption, and signature—so messages remain unreadable to intermediaries. It packaged a JavaScript crypto library, UI elements, and a browser extension workflow that could integrate with webmail-style UIs without server changes. The codebase emphasized careful key handling, usability experiments around key discovery and verification, and mitigations against common web threats like XSS. While the project ultimately transitioned into successor efforts, it helped push discussions about practical E2EE in mainstream web apps and the ergonomics of PGP-style workflows. Security researchers and product teams used it as a design reference for client-side cryptography and the trade-offs of operating inside a hostile web page.
