Open Source JavaScript Software - Page 14
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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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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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$300 in Free Credit Towards Top Cloud ServicesStart your project in minutes. After credits run out, 20+ products include free monthly usage. Only pay when you're ready to scale.
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Raven Reader
All your articles in one place. Beautiful
All your articles in one place, are beautiful. Exporting feed in OPML format. Importing feeds. Windows support. Linux support. Offline reading. Keyboard Shortcuts. Sidebar count. Text size configuration. Text font style configuration (Currently has Playfair Display, Muli, Open Sans, and Roboto Slab). Supports categorizing of the feeds. macOS touch bar shortcuts. Integration with read-it later apps: Pocket, Instapaper. Podcast support. Subscribe to podcast RSS feed and listen within the app. Accessibility Friendly, Feedbin integration (Folders are WIP). Inoreader integration. Google Reader API support. Supports self-hosted RSS Services like FreshRSS.org etc. (Folders are WIP). Support for subscribing to Youtube channels and viewing within the app. Flexible resizing of columns/panes. Please feel free to suggest more ideas to improve this app. -
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Rollup
A module bundler for JavaScript
Rollup is a module bundler for JavaScript which compiles small pieces of code into something larger and more complex, such as a library or application. It uses the new standardized format for code modules included in the ES6 revision of JavaScript, instead of previous idiosyncratic solutions such as CommonJS and AMD. ES modules let you freely and seamlessly combine the most useful individual functions from your favorite libraries. This will eventually be possible natively everywhere, but Rollup lets you do it today. Rollup can be used either through a command line interface with an optional configuration file, or else through its JavaScript API. Rollup allows you to write your code using the new module system, and will then compile it back down to existing supported formats such as CommonJS modules, AMD modules, and IIFE-style scripts. This means that you get to write future-proof code. -
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Screenity
The most powerful screen recorder & annotation tool for Chrome
Screenity is a feature-packed screen and camera recorder for Chrome. Annotate your screen to give feedback, emphasize your clicks, edit your recording, and much more. Make unlimited recordings of your tab, desktop, any application, and camera. Annotate by drawing anywhere on the screen, adding text, and creating arrows. Highlight your clicks, focus on your mouse, or hide it from the recording. Individual microphone and computer audio controls, push to talk, and more. Custom countdowns, show controls only on hover, and many other customization options. Export as mp4, gif, and webm, or save the video directly to Google Drive. Make sure the language you want to translate Screenity into is supported by the Chrome Store. Before submitting the pull request, it would be helpful if you tried running the extension in the new language, to make sure everything looks right. -
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UI.Vision RPA
Open-Source RPA Software (formerly Kantu)
The UI Vision RPA software is the tool for visual process automation, codeless UI test automation, web scraping and screen scraping. Automate tasks on Windows, Mac and Linux. The UI Vision RPA core is open-source with enterprise security. The free and open-source browser extension can be extended with local apps for desktop UI automation. UI.Vision RPA's computer-vision visual UI testing commands allow you to write automated visual tests with UI.Vision RPA - this makes UI.Vision RPA the first and only Chrome and Firefox extension (and Selenium IDE) that has "👁👁 eyes". A huge benefit of doing visual tests is that you are not just checking one element or two elements at a time, you’re checking a whole section or page in one visual assertion. The visual UI testing and browser automation commands of UI.Vision RPA help web designers and developers to verify and validate the layout of websites and canvas elements. -
Gemini 3 and 200+ AI Models on One PlatformBuild generative AI apps with Vertex AI. Switch between models without switching platforms.
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WebTorrent
Streaming torrent client for the web
WebTorrent is a streaming torrent client for node.js and the browser. YEP, THAT'S RIGHT. THE BROWSER. It's written completely in JavaScript – the language of the web – so the same code works in both runtimes. In node.js, this module is a simple torrent client, using TCP and UDP to talk to other torrent clients. In the browser, WebTorrent uses WebRTC (data channels) for peer-to-peer transport. It can be used without browser plugins, extensions, or installations. It's Just JavaScript™. Note: WebTorrent does not support UDP/TCP peers in browser. To make BitTorrent work over WebRTC (which is the only P2P transport that works on the web) we made some protocol changes. Therefore, a browser-based WebTorrent client or "web peer" can only connect to other clients that support WebTorrent/WebRTC. -
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draw.io
JavaScript client-side editor for general diagramming & whiteboarding
draw.io is a JavaScript, client-side editor for general diagramming and whiteboarding. draw.io, this project, is a configurable diagramming/whiteboarding visualization application. draw.io is jointly owned and developed by JGraph Ltd and draw.io AG. draw.io is a diagramming or whiteboarding application, depending on which theme is selected. It is not an SVG editing app, the SVG export is designed only for embedding in web pages, not for further editing in other tools. The application is designed to be used largely as-is. It's possible to alter the major parts of the interface, but if you're looking for an editor with very specific editing features, the project is likely not a good base to use. That is to say, if you wanted to create/deploy a whiteboard or diagramming application where the functionality in the main canvas is as this project provides, it is more likely to be a good base to use. -
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microStudio
Free, open source game engine online
microStudio is a free, open source game engine online. It is also a platform to learn and practice programming. microStudio can be used for free. You can also install your own copy, to work locally or on your own server for your team or classroom. microStudio is available online, this is the simpler and the preferred way, you will have access to all the online collaboration features, online publishing, and more export features. You don't even need to create an account, you can start working as a guest. microStudio includes all you need to write code, create sprites and maps for your 2D game. All from your web browser. Your project is stored in the cloud, and accessible from anywhere. Write your game code in microScript, a simple language inspired by Lua. The documentation is always there to help. Create cool demos in just a few lines of code. microScript shines by its simplicity and interactivity. But you can also code in JavaScript, Python, or Lua if you prefer. -
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user.js
Firefox privacy, security and anti-tracking: a comprehensive user.js
A user.js is a configuration file that can control Firefox settings - for a more technical breakdown and explanation, you can read more in the wiki. The arkenfox user.js is a template that aims to provide as much privacy and enhanced security as possible and to reduce tracking and fingerprinting as much as possible - while minimizing any loss of functionality and breakage (but it will happen). Everyone, experts included, should at least read the wiki, as it contains important information regarding a few user.js settings. Note that we do not recommend connecting over Tor on Firefox. Use the Tor Browser if your threat model calls for it, or for accessing hidden services. Also be aware that the arkenfox user.js is made specifically for desktop Firefox. Using it as-is in other Gecko-based browsers can be counterproductive, especially in the Tor Browser. -
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Natural Docs
Multi-language source code documentation tool
Natural Docs is an open-source documentation generator for multiple programming languages. You document your code in a natural syntax that reads like plain English. Natural Docs then scans your code and builds high-quality HTML documentation from it. SourceForge houses the source code and issue database for the old Perl version of Natural Docs, version 1.52. It is still available but no longer being updated. Please see NaturalDocs.org for the 2.x source code and issue database. However, you can still download the both the old and the new 2.x releases of Natural Docs here. -
AI-generated apps that pass security reviewRetool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
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Asterisk GUI client, VICIdial
VICIdial Contact Center Suite
This software suite is designed to extend the functionality of the Asterisk PBX through platform-independant web-client applications. Includes the VICIdial inbound/outbound contact center application. The suite is scalable across multiple Asterisk servers. -
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HTML5 Editor
HTML5 editor, free and open-source website builder based on Silex
This editor is a free and open-source online tool which lets you design html pages with an interface very close to dreamweaver's or powerpoint's one. But we've put a special touch in it ;) The HTML5 editor is now available online and called Silex. Only developers will want to download Silex source code from github. **No need to download it, simply follow the link bellow** -
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FreeMarker template engine
Generates text that depends on changing data (like dynamic HTML).
FreeMarker is a template engine. That is, it provides an easy way to generate text (HTML, source code, configuration files, emails, etc.) that depends on changing data. It's designed to separate the rendering/formatting logic (like visual design, HTML issues, etc.) from the backing application logic and technical complexity. It has a flexible API so you can integrate it into your application the way that best fits it. -
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Chatwoot
Open-source customer engagement suite, an alternative to Intercom
If you have questions, are confused, or just want to understand our product better, we've got your back. Customer engagement suite, an open-source alternative to Intercom, Zendesk, Salesforce Service Cloud etc. Chatwoot is an open-source, self-hosted customer engagement suite. Chatwoot lets you view and manage your customer data, communicate with them irrespective of which medium they use, and re-engage them based on their profile. Talk to your customers using our live chat widget and make use of our SDK to identify a user and provide contextual support. Connect your Facebook pages and start replying to the direct messages to your page. Connect your Instagram profile and start replying to the direct messages. Connect your Twitter profiles and reply to direct messages or the tweets where you are mentioned. Connect your Telegram bot and reply to your customers right from a single dashboard. -
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Electron Packager
Customize and package your Electron app with OS-specific bundles
Electron Packager is a command line tool and Node.js library that bundles Electron-based application source code with a renamed Electron executable and supporting files into folders ready for distribution. For creating distributables like installers and Linux packages, consider using either Electron Forge (which uses Electron Packager internally), or one of the related Electron tools, which utilizes Electron Packager-created folders as a basis. Note that packaged Electron applications can be relatively large. A zipped, minimal Electron application is approximately the same size as the zipped prebuilt binary for a given target platform, target arch, and Electron version (files named electron-v${version}-${platform}-${arch}.zip). Building an Electron app for the Windows target platform requires editing the Electron.exe file. Currently, Electron Packager uses node-rcedit to accomplish this. -
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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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Generative AI for Beginners (Version 3)
21 Lessons, Get Started Building with Generative AI
Generative AI for Beginners is a 21-lesson course by Microsoft Cloud Advocates that teaches the fundamentals of building generative AI applications in a practical, project-oriented way. Lessons are split into “Learn” modules for core concepts and “Build” modules with hands-on code in Python and TypeScript, so you can jump in at any point that matches your goals. The course covers everything from model selection, prompt engineering, and chat/text/image app patterns to secure development practices and UX for AI. It also walks through modern application techniques such as function calling, RAG with vector databases, working with open source models, agents, fine-tuning, and using SLMs. Each lesson includes a short video, a written guide, runnable samples for Azure OpenAI, the GitHub Marketplace Model Catalog, and the OpenAI API, plus a “Keep Learning” section for deeper study. -
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Godot MCP
MCP server for interfacing with Godot game engine
Godot MCP is a Model Context Protocol server that enables AI assistants to directly interact with the Godot game engine, allowing programmatic control over game development workflows through natural language or agent-driven commands. It acts as a bridge between AI systems and the Godot editor, providing capabilities such as launching projects, running games in debug mode, and capturing runtime output for analysis. The tool is particularly valuable for AI-assisted game development, as it creates a feedback loop where agents can execute code, observe results, and iteratively improve their outputs. It also includes advanced features for manipulating scenes, managing assets, and editing project structures, making it possible to automate large portions of the development process. By exposing Godot functionality through a standardized MCP interface, it ensures compatibility with various AI clients such as Claude Code or Cursor. -
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MDN Learning Area
GitHub repo for the MDN Learning Area
learning-area is the official GitHub repository for the MDN Web Docs Learning Area, a collection of educational resources designed to teach core web development technologies. It contains the code examples referenced throughout MDN’s tutorials and articles, covering topics such as HTML, CSS, JavaScript, and web APIs. Each directory in the repository mirrors the module structure of the MDN Learning Area, allowing learners to follow along easily as they read through corresponding lessons. The examples are written to be simple, instructive, and directly aligned with MDN’s documentation, making it an ideal hands-on companion for web development education. Server-side programming examples are housed separately in dedicated repositories—express-locallibrary-tutorial and django-locallibrary-tutorial—to simplify management and focus on specific back-end technologies. Overall, learning-area serves as a comprehensive practical reference for learners at all levels. -
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MathSteps
Step by step math solutions for everyone
mathsteps is a JavaScript library that performs step-by-step algebraic simplification and equation solving for expressions provided as strings. It exposes functions to simplify expressions and to solve equations, returning a structured sequence of steps that detail each transformation. For every step, mathsteps reports the original node, the change type, the resulting node, and any substeps, which makes it useful for education, debugging, and explainable math tooling. The library also exposes a catalog of change types so callers can interpret or filter specific transformations. It is distributed via npm and requires Node.js greater than version 6, with a straightforward API that fits neatly into web or server environments. The repository includes tests and contribution guidelines, making it approachable for developers who want to extend or adapt the behavior for their own applications. -
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Messenger for Desktop 2
A simple & beautiful desktop client for Facebook Messenger
A simple & beautiful desktop client for Facebook Messenger. Chat without distractions on OS X, Windows, and Linux. Not affiliated with Facebook. This is not an official product. -
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OWASP Juice Shop
Probably the most modern and sophisticated insecure web application
It can be used in security trainings, awareness demos, CTFs and as a guinea pig for security tools! Juice Shop encompasses vulnerabilities from the entire OWASP Top Ten along with many other security flaws found in real-world applications! Juice Shop is written in Node.js, Express and Angular. It was the first application written entirely in JavaScript listed in the OWASP VWA Directory. The application contains a vast number of hacking challenges of varying difficulty where the user is supposed to exploit the underlying vulnerabilities. The hacking progress is tracked on a scoreboard. Finding this scoreboard is actually one of the (easy) challenges! Apart from the hacker and awareness training use case, pentesting proxies or security scanners can use Juice Shop as a “guinea pig”-application to check how well their tools cope with JavaScript-heavy application frontends and REST APIs. -
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Odoo
Odoo. Open Source Apps To Grow Your Business
Odoo is a comprehensive suite of open source business applications designed to manage and streamline various organizational operations. It provides an integrated ecosystem of tools that cover core business functions such as CRM, accounting, eCommerce, inventory, HR, project management, and manufacturing. Each Odoo app can be deployed individually to meet specific business needs or combined to form a powerful all-in-one ERP system. The platform’s modular architecture allows businesses to scale easily as they grow, adapting to evolving requirements. Built with a web-based interface and a modern tech stack, Odoo emphasizes usability, flexibility, and seamless integration across departments. It is widely used by enterprises of all sizes, from startups to large corporations, for digital transformation and operational efficiency. -
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Oruga UI
Oruga is a lightweight library of UI components without CSS framework
Oruga is a lightweight library of UI components without CSS framework dependency. CSS framework agnostic: No dependency on a specific CSS framework/library but you can easily integrate the components with one of them because they are fully customizable in different ways. Components with steroids: most of the components aren't a simple wrapper of native elements but they add new and custom features. Lightweight: no other internal dependency and import only components that you need. Oruga doesn't depend on any specific style or CSS framework (like Bootstrap, Bulma, TailwindCSS etc...) and it doesn't provide any grid system or CSS utility, it just offer a set of components easy to customize. Oruga wants you to focus only on UI/UX aspects of your application and be totally flexible to future changes without having to touch a line of JavaScript. -
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PM2
Node.js Production Process Manager with a built-in Load Balancer
PM2 (Process Manager 2) is a production process manager with its own built-in load-balancer for Node.js applications. If you want battle-hardened Node.js applications that can be monitored and kept alive forever, PM2 is the way to go. PM2 lets you manage, maintain and increase Node.js performance. It is constantly assailed by over 1800 tests so you can deliver high quality applications, and deploy confidently and more often. PM2 is cross-platform and arguably the most widely-used process manager for Node.js with over 100 million downloads. Setting it up is easy, it just takes a couple of minutes and one simple command. -
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Preact
Fast 3kB React alternative with the same modern API
Preact is a lightweight alternative to React that implements the same core component and hooks model in a tiny footprint. It provides a virtual DOM, diffing, and a familiar Component/JSX API, enabling developers to reuse much of their React knowledge. With preact/compat, many React libraries can be used directly, making migration or code sharing practical in performance-sensitive apps. Its focus on size and speed makes it attractive for embedded widgets, mobile web, and scenarios where initial load must be extremely fast. The library embraces modern patterns like functional components, hooks, and context while keeping the API surface minimal. Tooling integrations and ecosystem packages round out the experience, so teams can ship production apps without sacrificing bundle budgets.
