Open Source JavaScript Software - Page 26
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JavaScript Software
Browse free open source JavaScript Software and projects below. Use the toggles on the left to filter open source JavaScript Software by OS, license, language, programming language, and project status.
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Coin Wallet
Coin Wallet is a non-custodial crypto wallet for Bitcoin
Coin Wallet is a non-custodial multicurrency wallet for multiple platforms. A secure, user-friendly cryptocurrency wallet focused on providing essential features without complicated setup. -
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Coinbase Pro
The official Node.js library for Coinbase Pro
Note: The gdax package is deprecated and might have to be removed from NPM. Please migrate to the coinbase-pro package to ensure future compatibility. Easy functionality to use in programmatic trading. A customizable, websocket-synced Order Book implementation. API clients with convenient methods for every API endpoint. Abstracted interfaces, don't worry about HMAC signing or JSON formatting; the library does it for you. To use optional parameters with callbacks, supply the options as the first parameter(s) and the callback as the last parameter. -
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Color Thief
Grab the color palette from an image using just Javascript
The Color Thief package includes multiple distribution files to support different environments and build processes. Gets the dominant color from the image. Color is returned as an array of three integers representing red, green, and blue values. When called in the browser, the image argument expects an HTML image element, not a URL. When run in Node, this argument expects a path to the image. quality is an optional argument that must be an Integer of value 1 or greater, and defaults to 10. The number determines how many pixels are skipped before the next one is sampled. We rarely need to sample every single pixel in the image to get good results. The bigger the number, the faster a value will be returned. Gets a palette from the image by clustering similar colors. The palette is returned as an array containing colors, each color itself an array of three integers. -
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Compressor.js
JavaScript image compressor
Compressor.js is a lightweight JavaScript library for in-browser image compression that allows developers to reduce file sizes before uploading images to a server, improving performance and user experience. It works by taking an input image (such as from a file input) and resizing or reencoding it on the client side according to developer-specified options like maximum width, height, quality, and MIME type. Because compression happens in the browser, users upload smaller images without sacrificing responsiveness or relying on server resources, which is especially useful for mobile users or limited-bandwidth environments. The library supports modern browsers and automatically handles orientation based on EXIF metadata, ensuring images appear correctly after compression. -
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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CryptPad is an open-source, end-to-end encrypted collaborative office suite developed by XWiki SAS. It offers a privacy-focused alternative to mainstream cloud-based productivity tools, enabling users to create, edit, and share documents securely without compromising data privacy. All content is encrypted client-side, ensuring that only authorized users can access the information. CryptPad supports various applications, including rich text documents, spreadsheets, presentations, code editing, kanban boards, polls, and whiteboards, facilitating real-time collaboration among teams. Users can access CryptPad without creating an account, and the platform also offers self-hosting options for organizations seeking full control over their data.
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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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D3
Bring data to life with SVG, Canvas and HTML
D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS. D3’s emphasis on web standards gives you the full capabilities of modern browsers without tying yourself to a proprietary framework, combining powerful visualization components and a data-driven approach to DOM manipulation. D3 allows you to bind arbitrary data to a Document Object Model (DOM), and then apply data-driven transformations to the document. For example, you can use D3 to generate an HTML table from an array of numbers. Or, use the same data to create an interactive SVG bar chart with smooth transitions and interaction. D3 is not a monolithic framework that seeks to provide every conceivable feature. Instead, D3 solves the crux of the problem: efficient manipulation of documents based on data. This avoids proprietary representation and affords extraordinary flexibility, exposing the full capabilities of web standards such as HTML, SVG, and CSS. -
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DataVoyager.jl
Julia wrapper for the Voyager data exploration tool
This package provides Julia integration for the Voyager data exploration tool. DataVoyager.jl can be used for data exploration. It can help you visualize and understand any data that is in a tabular format. -
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Emittery
Simple and modern async event emitter
A modern, TypeScript-based event emitter for JavaScript applications, providing an intuitive API for managing events in Node.js and browsers. -
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Epub.js
Enhanced eBooks in the browser
Epub.js is an open-source Javascript library that allows any web page to render Epub documents on any device with a modern browser. Epub.js contains a flexible rendering engine and provides a simple interface for common ebook functions such as styling, persistence and pagination. We release and maintain Epub.js on GitHub, with a growing developer community. Just include a single javascript file, and pointing it at a hosted epub. Epub.js provides an interface for common ebook functions (such as rendering, persistence and pagination) without the need to develop a dedicated application or plugin. Importantly, it has an incredibly permissive Free BSD license. The EPUB standard is a widely used and easily convertible format. Many books are currently in this format, and it is convertible to many other formats (such as PDF, Mobi and iBooks). -
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Essential React
A minimal skeleton for building testable React apps using Babel
A minimal skeleton for building testable React apps using Babel. The design goals are to use fewer tools (no yeoman, gulp, bower, etc...) Babel 6 with Webpack and Hot Loader. Fast testing with mocked-out DOM. Import CSS files as class names. Separate smart and dumb components. No specific implementation of Flux or data fetching patterns. A core philosophy of this skeleton app is to keep the tooling to a minimum. For this reason, you can find all the commands in the scripts section of package.json. This leverages React Hot Loader to automatically start a local dev server and refresh file changes on the fly without reloading the page. It also automatically includes source maps, allowing you to browse code and set breakpoints on the original ES6 code. Build minified app for production using the production shortcut. -
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Evershop
NodeJS E-commerce Platform
EverShop is an open-source, modular e-commerce platform built with Node.js and React. It offers a flexible architecture that allows developers to customize and extend the platform to meet specific business needs. EverShop provides essential commerce features and supports both REST and GraphQL APIs. -
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FKit
A functional programming toolkit for JavaScript
FKit (pronounced eff-kit) is a functional programming toolkit for JavaScript. It provides many functions for solving common problems with functions, objects, arrays, and strings. It aims to provide reusable building blocks while maintaining a laser focus on everyday utility. -
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Fluent.js
JavaScript implementation of Project Fluent
Fluent.js is a JavaScript implementation of Project Fluent, a localization framework designed to unleash the expressive power of the natural language. Project Fluent keeps simple things simple and makes complex things possible. The syntax used for describing translations is easy to read and understand. At the same time it allows, when necessary, to represent complex concepts from natural languages like gender, plurals, conjugations, and others. -
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Get Shit Done
A light-weight and powerful meta-prompting, context engineering
Get Shit Done is a high-impact, open-source meta-prompting and spec-driven development system designed to streamline building software with AI assistants like Claude Code, OpenCode, and Gemini CLI. It solves “context rot” — the degradation of AI quality as a chat session grows — by structuring your idea into precise, context-engineered steps that are researched, scoped, planned, executed, and verified with clear commands and outputs instead of ad-hoc prompts. The project emphasizes simplicity and effectiveness over bureaucratic workflows like story points, sprint ceremonies, or enterprise processes, making it especially useful for solo developers or small teams aiming to get reliable execution without overhead. GSD breaks down big goals into atomic plans, keeps AI context fresh, and automates task execution while generating standardized documentation, roadmaps, and commit histories. -
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GitHub Isometric Contributions extension
Browser extension for rendering isometric pixel art charts
This is a browser extension for Chrome/Brave and Firefox that lets you toggle between your regular GitHub contribution chart and an isometric pixel art version. It uses obelisk.js for isometric graphics. Besides being sort of neat looking, this view is interesting in that it highlights the differences between the number of contributions with more granularity. This isn't meant to completely replace the standard 2D graph though, because in most ways it is actually less useful. For example, there are no axis labels, shorter bars can be hidden behind taller ones, you can't hover over a bar to see the day and count, etc. If you want to hack on the extension, you'll need to install it manually. First clone or fork this repo. Then, on your Chrome Extensions page, make sure "Developer mode" is checked. You can then click the "Load unpacked extension" button and browse to the src directory of this repo. -
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Gladys Assistant
A privacy-first, open-source home assistant
Gladys Assistant is a privacy-first, open-source home assistant that integrates with various smart devices, allowing users to automate and control their home environment while ensuring data privacy. -
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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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HPSTR Jekyll Theme
A Jekyll theme with some tumble-log tendencies
A Jekyll theme with some tumble-log tendencies. Syntax highlighting is a feature that displays source code, in different colors and fonts according to the category of terms. This feature facilitates writing in a structured language such as a programming language or a markup language as both structures and syntax errors are visually distinct. Highlighting does not affect the meaning of the text itself; it is intended only for human readers. -
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Hubot
A customizable life embetterment robot
Hubot is a framework to build a custom chat bot, first built by GitHub, Inc. to automate their company chat room. Hubot gives you a very nice base for building your very own robot friend. Hubot comes with a small group of core scripts, including things like posting images, translating languages, and integrating with Google Maps. It's extendable with many other scripts, which make Hubot all the more personalized to fit your organization's needs and culture. Hubot can work on many different chat services, including third-party adapters Gitter, IRC, Slack and more. Build your own personalized chat bot with Hubot! -
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Hydejack
A boutique Jekyll theme for hackers, nerds, and academics
Hydejack's cover page on a variety of screens. Hydejack is a boutique Jekyll theme for hackers, nerds, and academics, with a focus on personal sites that are meant to impress. It includes a blog that is suitable for both prose and technical documentation, a portfolio to showcase your projects, and a resume template that looks amazing on the web and in print. Ever since the introduction of Dark Mode, link styles have been a bit of an issue. Specifically, finding an accent color that worked on both light and dark backgrounds was the problem. With Hydejack 9, the link style has been revamped so that legibility is no longer tied to the choice of accent color, giving you much more freedom in creating a unique design flavor for your site. -
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IPFS GeoIP
GeoIP lookup over DAG-CBOR dataset loaded from IPFS
GeoIP lookup over IPFS. GeoIP lookup over DAG-CBOR dataset loaded from IPFS. -
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Immutable.js
Immutable collections for JavaScript
Immutable.js offers a collection of Persistent Immutable data structures for JavaScript. Immutable data is unchangeable once created, which makes application development so much simpler. There’s no defensive copying, and you get advanced memoization and change detection techniques with simple logic. Persistent data gives you a mutative API, one that doesn’t update data in-place but always produces new and updated data. The data structures that Immutable.js provides include List, Stack, Map, OrderedMap, Set and more. These structures are highly efficient on modern JavaScript VMs, and minimize the need to cache or copy data. -
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Improve YouTube!
Extension to improve your view, playback & content discovery
ImprovedTube is a lightweight extension to improve your view, playback & content discovery. Powerful features with a pretty UI. It is an extension we built to refine and sweeten your YouTube experience. A one-stop shop with many powerful features to enhance YouTube, yet lightweight. A larger player & tidy YouTube UI / hiding distractions were the first loved feature. And there was so much left to build and are many clever features to come still. ImprovedTube is designed with our own UI library: Status (to manage your settings efficiently & create familiar apps/'cousins easily.) Please spread the word: ImprovedTube is the only project of it's kind because other open Youtube Extensions resigned. No other project provides so much CSS to adjust a website. -
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JS-Beautify
Beautifier for javascript
js-beautify is a command-line and Python-based tool that beautifies and formats JavaScript, HTML, and CSS code. It helps improve code readability by enforcing consistent indentation and style rules. Widely used in development workflows and CI pipelines, it supports customization through config files and can process both single files and entire projects.
