Open Source JavaScript Libraries
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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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Hacker Scripts
Based on a true story
Hacker Scripts is a cheeky collection of small automation scripts and language ports collected under the tagline “Based on a true story.” The repository gathers playful utilities (originally shell and Ruby scripts) that automate short, real-world tasks — for example, sending a quick “late at work” text when SSH sessions are active, firing off an automated “I’m sick / working from home” email on certain mornings, or even talking to a networked coffee machine to start brewing at precisely the right moment. The README explains the origin story and highlights several canonical scripts and provides usage notes such as required environment variables and cron examples for scheduling. Contributors have provided implementations and ports in many languages and folders (shell, Ruby, Python, Node, Perl, PowerShell, Go, Java, etc.), and the project explicitly welcomes pull requests that add additional language implementations. -
2
armorpaint
3D PBR Texture Painting Software
ArmorPaint is stand-alone software designed for physically-based texture painting. Drag & drop your 3D models and start painting. Receive instant visual feedback in the viewport as you paint. Work fast with the convenience of nodes. Paint with fully procedural materials. Build fill layers with material nodes. Use brush nodes to create patterns and procedural brushes. ArmorPaint is designed from scratch to run completely on the GPU. This results in a smooth 4K painting experience on medium-power integrated hardware. Up to 16K texture painting is seamless using a high-end graphics card. Ray-traced baking, painting effects and viewport rendering feature running on Direct3D12 and Vulkan are in progress. ArmorPaint is powered by an in-house 3D rendering engine to achieve the best painting experience. -
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Bootstrap Icons
Open source SVG icon library for Bootstrap
Free, high-quality, open-source icon library with over 1,600 icons. Include them any way you like, SVGs, SVG sprite, or web fonts. Use them with or without Bootstrap in any project. Bootstrap Icons are published to npm, but they can also be manually downloaded if needed. Bootstrap Icons are SVGs, so you can include them into your HTML in a few ways depending on how your project is setup. We recommend using a width: 1em (and optionally height: 1em) for easy resizing via font-size. Embed your icons within the HTML of your page (as opposed to an external image file). Here we’ve used a custom width and height. Use the SVG sprite to insert any icon through the <use> element. Use the icon’s filename as the fragment identifier (e.g., toggles is #toggles). SVG sprites allow you to reference an external file similar to an <img> element, but with the power of currentColor for easy theming. -
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jQuery
jQuery JavaScript library
jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers. With a combination of versatility and extensibility, jQuery has changed the way that millions of people write JavaScript. jQuery also supports Node, browser extensions, and other non-browser environments. To build jQuery, you need to have the latest Node.js/npm and git 1.7 or later. Earlier versions might work, but are not supported. Special builds can be created that exclude subsets of jQuery functionality. This allows for smaller custom builds when the builder is certain that those parts of jQuery are not being used. For example, an app that only used JSONP for $.ajax() and did not need to calculate offsets or positions of elements could exclude the offset and ajax/xhr modules. -
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5
Netron
Visualizer for neural network, deep learning, machine learning models
Netron is a viewer for neural network, deep learning and machine learning models. Netron supports ONNX, Keras, TensorFlow Lite, Caffe, Darknet, Core ML, MNN, MXNet, ncnn, PaddlePaddle, Caffe2, Barracuda, Tengine, TNN, RKNN, MindSpore Lite, and UFF. Netron has experimental support for TensorFlow, PyTorch, TorchScript, OpenVINO, Torch, Arm NN, BigDL, Chainer, CNTK, Deeplearning4j, MediaPipe, ML.NET, scikit-learn, TensorFlow.js. There is an extense variety of sample model files to download or open using the browser version. It is supported by macOS, Windows, Linux, Python Server and browser. -
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Playwright
Node library to automate Chromium, Firefox & WebKit with a single API
Playwright is a Node library for automating Chromium, Firefox and WebKit using a single API. It supports headless execution for all these browsers on Linux, macOS and Windows, providing automated web browser interactions that are fast, capable, reliable and ever-green. Playwright enables a broad spectrum of cross-browser web automation capabilities, which are used by Single Page Apps and Progressive Web Apps. These include scenarios that span multiple pages, domains and iframes; emulation of mobile devices, geolocation, and permissions; upload and download files and many more. -
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OpenMoji
Open source emojis for designers, developers and everyone else!
Open source emojis for designers, developers and everyone else! OpenMoji is an open source project of 60+ students and 3 professors of the HfG Schwäbisch Gmünd and 20+ external contributors. All emojis are free to use under the CC BY-SA 4.0 license. So far more than three thousand emojis over many categories have been designed. OpenMoji carefully supports the Unicode Emoji standard. All emojis follow a single style guide and fit perfectly together. Supporting a wide range of use cases with colored and outlined emojis. OpenMoji supports the Fitzpatrick skin tones scale and multiple skin tone combinations. OpenMoji ships with various special interest categories beyond standard unicode. All emojis have been carefully designed, tested and reviewed over many iterations. From Andorra to Zimbabwe to Pirates. -
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Everything Claude Code
Complete Claude Code configuration collection
Everything Claude Code is a community-driven collection of Claude Code skills, workflows, and examples that accelerate the adoption of Anthropic’s Claude models for real-world developer tasks, ranging from project scaffolding to code generation and testing automation. The repository curates reproducible templates that demonstrate how Claude Code agents can participate in end-to-end developer journeys such as building new features, adhering to coding standards, generating documentation, and automating refactor patterns. It also includes example orchestrations that showcase multi-step agent workflows, letting developers see how to compose small, discrete agent capabilities into productive, cohesive sequences. Because it is designed to be modular, individuals and teams can pull in only the skills they need, combine them with custom logic, or share their own extensions with the community. -
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HowToLiveBetter
Evidence-based living guidelines sorted by cost-effectiveness
HowToLiveBetter is an evidence-focused interactive life guide that organizes hundreds of practical recommendations by cost, expected benefit, and strength of evidence. It covers health, longevity, emergency response, personal finance, legal risks, unemployment, entrepreneurship, relationships, parenting, travel, and skill development. Each recommendation explains what resources it costs and what outcome it is intended to improve. Evidence ratings are tied to journal research and official documents rather than general web commentary. The web interface lets readers search and filter recommendations by dimensions such as money, time, and required effort. The repository also includes longer essays, reference material, verification notes, and structured book chapters. It functions as both a static publication and a searchable decision-support reference. -
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Free texture packer
Free texture packer
Free Texture Packer is a desktop tool for creating sprite sheets from individual images, ideal for game developers using engines like Phaser or Unity. It supports multiple export formats and efficient packing algorithms. -
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Golden Layout
A multi window layout manager for webapps
Golden Layout is a JavaScript layout manager designed for building complex, multi-panel web applications with draggable and resizable components. It enables developers to arrange UI elements into flexible layouts that can be dynamically reconfigured by users through drag-and-drop interactions. The system is particularly useful for dashboards, IDE-like interfaces, and data-heavy applications where multiple panels need to coexist and be rearranged. Golden Layout manages component positioning, visibility, and resizing through a structured layout tree, allowing precise control over how elements are displayed. It also supports saving and restoring layouts, enabling persistence of user configurations across sessions. The library integrates with popular frontend frameworks such as Angular and Vue, and includes support for virtual components to bridge framework-specific rendering models. -
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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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Style2Paints
Sketch + style = paints
style2paints is an AI-assisted colorization system aimed primarily at line art and manga, turning monochrome drawings into colored illustrations with minimal manual effort. It combines automatic color inference with user guidance, letting artists nudge the model using sparse color hints, masks, or style references. The pipeline focuses on preserving line quality while spreading coherent colors and shading across regions that are often ambiguous to purely automatic methods. Iterative refinement is a core workflow: you can add or adjust hints, rerun inference, and progressively converge on a desired palette and lighting. Beyond flat fills, the model attempts plausible shading and highlights so the result feels less like a “paint bucket” and more like a finished illustration. Because it’s built for artists rather than only researchers, the project emphasizes an approachable UI, predictable edits, and reproducible outputs across sessions. -
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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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Cytoscape.js
Graph theory library for visualization and analysis
A fully featured graph library written in pure JS. Permissive open source license (MIT) for the core Cytoscape.js library and all first-party extensions. Used in commercial projects and open-source projects in production. Designed for users first, for both frontfacing app usecases and developer usecases. Highly optimized. Compatible with All modern browsers. Legacy browsers with ES5 and canvas support. ES5 and canvas support are required, and feature detection is used for optional performance enhancements. Browsers circa 2012 support ES5 fully: IE10, Chrome 23, Firefox 21, Safari 6 (caniuse). Browsers with partial but sufficient ES5 support also work, such as IE9 and Firefox 4. The documentation and examples are not optimized for old browsers, although the library itself is. Some demos may not work in old browsers in order to keep the demo code simple. -
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Playwright for .NET
.NET version of the Playwright testing and automation library
Playwright for .NET is the official language port of Playwright, the library to automate Chromium, Firefox and WebKit with a single API. Playwright is built to enable cross-browser web automation that is ever-green, capable, reliable and fast. Cross-browser. Playwright supports all modern rendering engines including Chromium, WebKit, and Firefox. Cross-platform. Test on Windows, Linux, and macOS, locally or on CI, headless or headed. Cross-language. Use the Playwright API in TypeScript, JavaScript, Python, .NET, Java. Test Mobile Web. Native mobile emulation of Google Chrome for Android and Mobile Safari. The same rendering engine works on your Desktop and in the Cloud. Auto-wait. Playwright waits for elements to be actionable prior to performing actions. It also has a rich set of introspection events. The combination of the two eliminates the need for artificial timeouts - the primary cause of flaky tests. -
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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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Swagger UI
HTML, JavaScript, and CSS assets that generate Swagger documentation
Swagger UI is a collection of HTML, JavaScript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API. Simplify API development for users, teams, and enterprises with the Swagger open source and professional toolset. Find out how Swagger can help you design and document your APIs at scale. The power of Swagger tools starts with the OpenAPI Specification — the industry standard for RESTful API design. Individual tools to create, update and share OpenAPI definitions with consumers. SwaggerHub is the platform solution to support OpenAPI workflows at scale. Swagger open source and pro tools have helped millions of API developers, teams, and organizations deliver great APIs. Swagger offers the most powerful and easiest to use tools to take full advantage of the OpenAPI Specification. -
19
react-window
React components for rendering large lists and tabular data
React window works by only rendering part of a large data set (just enough to fill the viewport). This helps address some common performance bottlenecks. It reduces the amount of work (and time) required to render the initial view and to process updates. It reduces the memory footprint by avoiding over-allocation of DOM nodes. react-window is a complete rewrite of react-virtualized. If react-window provides the functionality your project needs, it is strongly recommend that you use it instead of react-virtualized. However if you need features that only react-virtualized provides, you have two options. Use react-virtualized. (It's still widely used by a lot of successful projects!). Or, create a component that decorates one of the react-window primitives and adds the functionality you need. You may even want to release this component to NPM (as its own, standalone package)! -
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JsBarcode
Barcode generation library written in JavaScript
JsBarcode is a barcode generator written in JavaScript. It supports multiple barcode formats and works in browsers and with Node.js. It has no dependencies when it is used for the web but works with jQuery if you are into that. Barcode generation library written in JavaScript that works in both the browser and on Node.js. Easy to use, yet powerful barcode generator for the web and Node.js. Download the library and include the script or use the CDN. Customize the barcode with the 17 different options. -
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tcomb-form
Forms library for react
tcomb-form is a React form library that generates forms from tcomb domain models. It builds on tcomb and tcomb-validation to connect data structure, validation logic, and user interface generation in a single workflow. Developers define the shape of the data once, then the library can render form fields, apply validation, and return typed values. This makes it useful for applications with many structured forms where hand-writing every input would create repetitive code. The project supports customization through templates, options, labels, placeholders, and field-level configuration. Although it belongs to an older React ecosystem, it remains a clear example of model-driven form generation for web applications. -
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Gifted Form
One React-Native form component to rule them all
React Native Gifted Form is a form-building component library for React Native applications. It provides reusable widgets for text inputs, text areas, selects, switches, dates, countries, modal subforms, hidden values, notices, and submit actions. Validation rules can be attached to individual fields and executed when a form is submitted. Forms with the same name can share stored values through GiftedFormManager. External state management is also supported for selected widgets through controlled values and change callbacks. Google Places integration is available through a dedicated location widget. Developers can create additional widgets by implementing the library’s widget mixin, making the form system extensible beyond its built-in controls. -
23
Retire.js
Scanner detecting the use of JavaScript libraries
There is a plethora of JavaScript libraries for use on the web and in node.js apps out there. This greatly simplifies, but we need to stay updated on security fixes. "Using Components with Known Vulnerabilities" is now a part of the OWASP Top 10 and insecure libraries can pose a huge risk for your web app. The goal of Retire.js is to help you detect the use of versions with known vulnerabilities. Scan a web app or node app for use of vulnerable JavaScript libraries and/or node modules. grunt-retire scans your grunt-enabled app for use of vulnerable JavaScript libraries and/or node modules. Scans visited sites for references to insecure libraries and puts warnings in the developer console. An icon on the address bar displays will also indicate if vulnerable libraries were loaded. Retire.js has been adapted as a plugin for the penetration testing tools Burp and OWASP ZAP. -
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LIVE
Directly accessible TV/radio icon library and related tool projects
LIVE is an open-source Chinese television and radio logo library with related IPTV utility resources. The project provides directly accessible TV and radio icon paths that can be used in playlist, player, and electronic program guide workflows. It includes folders for TV icons, radio icons, M3U resources, M3U8 tools, a player, TXT-to-M3U conversion, and worker-related files. The README explains how users can create their own M3U subscription link by editing a sample playlist and hosting it through GitHub Pages. It also exposes an EPG interface and web tools for tasks such as M3U8 downloading and format conversion. The project states that it does not store streaming media itself, so it is best viewed as an icon, playlist, and utility resource for testing and personal configuration. -
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Zip.js
JavaScript library to zip and unzip files
Zip.js is a JavaScript library for creating, reading, and editing ZIP files directly in the browser or in Node.js environments, supporting various compression methods and encryption.
