Open Source JavaScript Software Development Software - Page 26

JavaScript Software Development Software

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Browse free open source JavaScript Software Development Software and projects below. Use the toggles on the left to filter open source JavaScript Software Development Software by OS, license, language, programming language, and project status.

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  • 1
    WTFJS

    WTFJS

    A list of funny and tricky JavaScript examples

    WTFJS is a curated collection of JavaScript “gotchas” and puzzling examples that reveal surprising corners of the language. Each entry presents a small snippet, explains why the behavior occurs, and ties it back to the specification or engine rules. The repository covers coercion quirks, edge-case comparisons, floating-point oddities, prototype traps, and scoping pitfalls, among others. It’s designed as both a fun read and a serious learning aid, helping developers build an intuition for how JavaScript evaluates expressions. By highlighting common misconceptions, it encourages safer coding patterns and more reliable mental models. Teachers, interviewers, and learners use it to spark discussion and deepen understanding of JavaScript’s semantics.
    Downloads: 2 This Week
    Last Update:
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  • 2
    Web app generator

    Web app generator

    A gulp.js generator for modern webapps

    Yeoman generator that scaffolds out a front-end web app using gulp for the build process. Please see our gulpfile for up to date information on what we support. enable ES2015 features using Babel. CSS Autoprefixing. Built-in preview server with BrowserSync. Automagically compile Sass with libsass. Automagically lint your scripts. Map compiled CSS to source stylesheets with source maps. Awesome image optimization. For more information on what this generator can do for you, take a look at the gulp plugins used in our package.json. Keep in mind that libsass is feature-wise not fully compatible with Ruby Sass. Check out this curated list of incompatibilities to find out which features are missing. If your favorite feature is missing and you really need Ruby Sass, you can always switch to gulp-ruby-sass and update the styles task in gulpfile accordingly.
    Downloads: 2 This Week
    Last Update:
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  • 3
    Webpack Encore

    Webpack Encore

    A simple but powerful API for processing and compiling assets

    Symfony ships with a pure-JavaScript library, called Webpack Encore, that makes it a joy to work with CSS and JavaScript. You can use it, use something else, or create static CSS and JS files in your public/ directory directly and include them in your templates. Webpack Encore is a simpler way to integrate Webpack into your application. It wraps Webpack, giving you a clean & powerful API for bundling JavaScript modules, pre-processing CSS & JS, and compiling and minifying assets. Encore gives you a professional asset system that's a delight to use. Encore is inspired by Webpacker and Mix, but stays in the spirit of Webpack, using its features, concepts and naming conventions for a familiar feel. It aims to solve the most common Webpack use cases. Encore is made by Symfony and works beautifully in Symfony applications. But it can easily be used in any application in any language!
    Downloads: 2 This Week
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  • 4
    Webshim

    Webshim

    Webshims Lib is a modular capability-based polyfill-loading library

    Webshim is a deprecated modular polyfill-loading library created to help developers use HTML5 features across browsers with inconsistent native support. It was designed around capability detection, meaning it loads only the needed polyfills instead of treating every browser the same. The library was especially useful when older browsers lacked reliable support for modern form controls, media elements, and other HTML5 APIs. It helped front-end developers build more consistent user experiences during a period when browser support varied widely. The project depends on the older JavaScript ecosystem and is not compatible with newer jQuery 3.x workflows. Today, it is best understood as a legacy compatibility tool for older web projects rather than a modern front-end dependency.
    Downloads: 2 This Week
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  • 5
    Windows 95 UI Kit

    Windows 95 UI Kit

    Windows 95 UI Kit made with Bootstrap 4 components

    30+ authentic Windows 95 components, Full Documentation, Fully Responsive, 100% Valid W3C HTML Files. It's Free. Windows 95 UI Kit is a free User Interface Kit featuring authentic buttons, cards (windows), tabs, navigation tabs, typography and many more. Use this kit to create awesome retro interfaces. Just run npm install to set up all the required dependencies. The Windows 95 Elements were molded with Bootstrap 4 Components and classes to offer an easy way and modern way of working with colors and sizes. This is an open source project so if you have an idea or would like to perfect the product, feel free to create a PR and we will surely take a look at it.
    Downloads: 2 This Week
    Last Update:
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  • 6
    WordPress Playground

    WordPress Playground

    Run WordPress in the browser via WebAssembly PHP

    WordPress Playground is an experimental platform that allows users to run a fully functional WordPress environment entirely inside a web browser using WebAssembly, eliminating the need for a traditional PHP server or database setup. It achieves this by compiling PHP and other required components into WebAssembly, effectively creating a self-contained virtual environment that runs locally within the browser. This enables instant access to WordPress for learning, testing, and development without installation or hosting, significantly lowering the barrier to entry for new users and developers. The platform acts as a sandbox where users can experiment with themes, plugins, and configurations without affecting any live websites, making it ideal for prototyping and quality assurance workflows. It also supports exporting and importing full site states, allowing users to persist their work beyond a single session or transfer it to a production environment.
    Downloads: 2 This Week
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  • 7
    WordPressify

    WordPressify

    Automate your WordPress development workflow

    A build system designed to automate your WordPress development workflow. WordPressify is a simple tool that helps you build WordPress themes and plugins. It takes care of the development experience by providing a web server with a database out of the box, with zero configuration required. A development server for PHP and MariaDB database out of the box. Watches for all your changes and reloads in real-time. Preprocessors, PostCSS or Sass with source maps. Babel compiler for writing next-generation JavaScript. Easy import for external JavaScript libraries and npm scripts. Flexible build customization, managed by gulp tasks. WordPressify is a simple tool that helps you build WordPress themes and plugins. It takes care of the development experience by providing a web server with a database out of the box, zero configuration required. WordPressify comes with a development server for running PHP under a proxy with BrowserSync.
    Downloads: 2 This Week
    Last Update:
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  • 8
    Zebra Datepicker

    Zebra Datepicker

    Super-lightweight, highly configurable, cross-browser date time picker

    A super-lightweight, highly configurable, cross-browser date time picker jQuery plugin. Enhance your forms with the powerful and highly-configurable Zebra Datepicker date time picker jQuery plugin. This date time picker adds an intuitive calendar interface for selecting dates and times, complete with a convenient month and year jump feature. The selected date will be formatted and entered into the input field according to your specified options. Simply attach the plugin to your input fields and let the calendar icon do the rest.
    Downloads: 2 This Week
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  • 9
    ZetaJS

    ZetaJS

    JS wrapper for ZetaOffice in the browser

    The zeta.js library provides the facilities to run an instance of ZetaOffice integrated into your web site, allowing you to control it with JavaScript code via the LibreOffice UNO technology. Use cases range from an in-browser office suite that looks and feels just like its desktop counterpart, to fine-tuned custom text editing and spreadsheet capabilities embedded in your website, to a headless zetajs instance that does document conversion in the background.
    Downloads: 2 This Week
    Last Update:
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  • 10
    Zulip Mobile

    Zulip Mobile

    Zulip mobile apps for Android and iOS

    Zulip for Windows is even better than Zulip on the web, with a cleaner look, tray integration, native notifications, and support for multiple Zulip accounts. Zulip Mobile is the official mobile Zulip client, supporting both iOS and Android.
    Downloads: 2 This Week
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  • 11
    accountill

    accountill

    Fullstack open source Invoicing application made with MongoDB

    This is a side project I've been working on. A full stack invoicing application made using the MERN stack (MongoDB, Express, React & Nodejs), specially designed for freelancers and small businesses, but can be used for almost any type of business need. With this application, you can send beautiful invoices, receipts, estimates, quotes, bills etc to your clients. Jump right off the Live App and start sending invoice or download the entire Source code and run it on your server. This project is something I've been working on in my free time so I cannot be sure that everything will work out correctly. But I'll appreciate you if can report any issue. Send invoices, receipts, estimates, quotations and bills via email. Generate and send/download pdf invoices, receipts, estimates, quotations and bills via email. Set due date. Automatic status change when payment record is added. Payment history section for each invoice with record about payment date, payment method and extra note.
    Downloads: 2 This Week
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  • 12
    algorithms.js

    algorithms.js

    Classic algorithms and data structures implemented in JavaScript

    Traditional Computer Science algorithms and data structures implemented in JavaScript. Algorithms such as collatzConjecture, extendedEuclidean, fastPower, fibonacci, findDivisors, fisherYates, gcd (Greatest common divisor), greatestDifference, lcm (Least common multiple), newtonSqrt, nextPermutation, powerSet, reservoirSampling, shannonEntropy, etc.
    Downloads: 2 This Week
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  • 13
    art-template

    art-template

    High performance JavaScript templating engine

    art-template is a simple and superfast templating engine that optimizes template rendering speed by scope pre-declared technique, hence achieving runtime performance which is close to the limits of JavaScript. At the same time, it supports both NodeJS and browser. art-template simultaneously supports two syntax of template. Standard syntax allows templates to be easier to read and write. While original syntax has powerful logical processing ability. Original syntax is compatible with EJS, Underscore, LoDash templates. Performance is close to the JavaScript rendering limits. Debugging friendly. Syntax errors or runtime errors will be positioned accurately at which line of template. Support setting breakpoint in templating files (Webpack Loader). Supports Express, Koa, Webpack. Supports template inheritance and sub template. Browser version is only 6KB. Standard syntax supports basic templating syntax and JavaScript expression.
    Downloads: 2 This Week
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  • 14
    babel-plugin-styled-components

    babel-plugin-styled-components

    Improve the debugging experience and add server-side rendering support

    This plugin is a highly recommended supplement to the base styled-components library, offering some useful features. Consistently hashed component classNames between environments (a must for server-side rendering). Better debugging through automatic annotation of your styled components based on their context in the file system, etc. Various types of minification for styles and the tagged template literals styled components uses.
    Downloads: 2 This Week
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  • 15
    bootstrap-input-spinner

    bootstrap-input-spinner

    A Bootstrap plugin to create input spinner elements for number input

    A Bootstrap / jQuery plugin to create input spinner elements for number input. With version 3.3 I added an ES6 module beta version under src/es6-beta. It is not yet documented, but there is a test page as index-es6-beta.html.
    Downloads: 2 This Week
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  • 16
    bors-ng

    bors-ng

    A merge bot for GitHub Pull Requests

    bors-ng is a GitHub merge bot that enforces an “evergreen” main branch by queueing approved pull requests, testing them together on a staging branch, and only advancing main with the exact, passing commit set. Instead of maintainers repeatedly rebasing and merging one PR at a time, bors-ng batches r+-ed PRs, triggers your existing CI (e.g., GitHub Actions), and merges automatically when the batch is green. If a batch fails, it bisects the batch into smaller runs to isolate the culprit, landing the good PRs and kicking only the failing one(s) back for fixes. The bot is implemented as a GitHub App and works alongside—rather than replacing—your CI by reporting commit statuses/checks and acting on PR comments like bors r+ or bors try. It provides a dashboard to watch queue progress, uses separate staging/trying branches for merge/test cycles, and supports both public GitHub and GitHub Enterprise endpoints.
    Downloads: 2 This Week
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  • 17
    bxSlider

    bxSlider

    Responsive jQuery content slider

    The fully-loaded, responsive jQuery content slider. 4.2.0 Introduces a streamlined build process using gulp. Along with this new build process the projects folder structure has been changed. You will find a dist folder with all assets ready to use, including both minified and unminified versions of the javascript. These assets should be ready to go. In src you will find the uncompiled assets, including a new less version of the css for bxslider. This is an important step for bxslider. It will help speed development up and keep work clean. It also paves the way for a big revamp we have planned in the future.
    Downloads: 2 This Week
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  • 18
    chat-bubble

    chat-bubble

    Simple chatbot UI for the Web with JSON scripting

    Simple chatbot UI for the Web with JSON scripting.
    Downloads: 2 This Week
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  • 19
    clsx

    clsx

    A tiny utility for constructing `className` strings conditionally

    clsx is a tiny JavaScript utility (roughly a few hundred bytes) for constructing className strings conditionally, commonly used in React and other component frameworks. It is intended as a faster and smaller drop-in replacement for the popular classnames package, but with a minimalistic API and implementation. The function accepts any number of arguments in a variety of forms: strings, numbers, arrays, and objects where truthy values indicate which classes to include. It then returns a deduplicated, space-separated class string that can be applied directly to HTML or JSX className attributes. The library is distributed in multiple formats (ESM, CommonJS, and UMD) so it works well in bundlers, Node environments, and direct tags. Because it has zero dependencies and a stable API, it is widely used in both small projects and large production codebases where bundle size is a concern.
    Downloads: 2 This Week
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  • 20
    css-loader

    css-loader

    CSS Loader

    The CSS-loader interprets @import and URL() like import/require() and will resolve them. Add the plugin to your webpack config. Run webpack via your preferred method. Allows to enable/disable handling the CSS functions URL and image-set. If set to false, CSS-loader will not parse any paths specified in URL or image-set. A function can also be passed to control this behavior dynamically based on the path to the asset. Starting with version 4.0.0, absolute paths are parsed based on the server root. Using local value requires you to specify :global classes. Using global value requires you to specify :local classes. Using pure value requires selectors must contain at least one local class or id. Styles can be locally scoped to avoid globally scoping styles. The syntax :local(.className) can be used to declare className in the local scope. The local identifiers are exported by the module.
    Downloads: 2 This Week
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  • 21
    currency.js

    currency.js

    A javascript library for handling currencies

    currency.js is a lightweight JavaScript library designed to handle currency values with precision by avoiding common floating point arithmetic issues inherent in JavaScript. It achieves this by internally representing values as integers, which allows for accurate calculations even when dealing with decimals. The library provides a simple and intuitive API for performing operations such as addition, subtraction, multiplication, and division on monetary values. It is optimized for performance and minimal footprint, making it ideal for applications where bundle size and speed are important considerations. currency.js also includes formatting capabilities, allowing developers to display currency values in user-friendly formats with customizable symbols and separators. Its simplicity makes it particularly appealing for smaller projects or cases where a full financial library is not required.
    Downloads: 2 This Week
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  • 22
    deck.gl

    deck.gl

    WebGL2 powered visualization framework

    deck.gl is designed to simplify high-performance, WebGL-based visualization of large data sets. Users can quickly get impressive visual results with minimal effort by composing existing layers, or leveraging deck.gl's extensible architecture to address customer needs. deck.gl maps data (usually an array of JSON objects) into a stack of visual layers - e.g. icons, polygons, texts; and look at them with views: e.g. map, first-person, orthographic. deck.gl handles a number of challenges out of the box. Deck.gl is designed to be highly customizable. All layers come with flexible APIs to allow programmatic control of each aspect of the rendering. All core classes such are easily extendable by the users to address custom use cases. deck.gl is part of vis.gl, an OpenJS Foundation project. Read the contribution guidelines if you are interested in contributing.
    Downloads: 2 This Week
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  • 23
    discord.io

    discord.io

    A small, single-file library for creating DiscordApp clients

    A small, single-file, fully featured Discordapp library for Node.js and browsers.
    Downloads: 2 This Week
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  • 24
    documentation.js

    documentation.js

    Documentation for modern JavaScript

    A documentation system so good, you'll actually write documentation. documentation.js has pluggable output formats: you can get raw documentation as JSON, beautiful, customizable HTML, or Markdown that fits perfectly into an API.md or README.md file in a GitHub repository. Demos, self-documentation as HTML, Markdown, JSON. documentation.js aims to cover all flavors of modern JavaScript. documentation.js works in your workflow, whether you just want a command-line utility that generates documentation from your code, you use Gulp to publish websites, or you're building a new system and want low-level JavaScript methods. Infers parameters, types, membership, and more. Write less documentation: let the computer write it for you. Integrates with GitHub to link directly from documentation to the code it refers to.
    Downloads: 2 This Week
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  • 25
    electron-apps

    electron-apps

    A collection of apps built on Electron

    A collection of apps built on Electron. If you have an Electron application you'd like to see added, please read the contributing doc. Hundreds of production applications built with Electron.
    Downloads: 2 This Week
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