Open Source JavaScript Software - Page 18

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.

  • Train ML Models With SQL You Already Know Icon
    Train ML Models With SQL You Already Know

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  • 1
    Agent Skills

    Agent Skills

    Skills for AI coding agents

    Agent Skills by Vercel Labs is a curated collection of modular “skills” designed to extend the capabilities of AI coding agents by packaging human-ready instructions, workflows, and optional scripts that tell an agent how to perform specific development tasks. In this repository, each skill adheres to the Agent Skills specification, meaning they’re defined as folders with a SKILL.md file (containing task descriptions and step-by-step guidance) and can include helper scripts and reference material that the agent can execute or consult when invoked. The goal of the project is to make it easy for AI assistants like Claude Code, OpenCode, Cursor, Codex, and others that support this open ecosystem to automatically apply best practices or perform concrete actions when a relevant user intent is detected. For example, some skills guide the agent in applying React and Next.js performance best practices, auditing UI and accessibility standards.
    Downloads: 8 This Week
    Last Update:
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  • 2
    Alpaca Electron

    Alpaca Electron

    The simplest way to run Alpaca on your own computer

    Alpaca Electron is built from the ground up to be the easiest way to chat with the alpaca AI models. No command line or compiling is needed. Only windows is currently supported for now. The new llama.Cpp binaries that support GGUF have not yet been built for other platforms.
    Downloads: 8 This Week
    Last Update:
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  • 3
    BitTorrent Tracker

    BitTorrent Tracker

    Simple, robust, BitTorrent tracker (client & server) implementation

    A self-hosted, open-source BitTorrent tracker written in Node.js, allowing users to run their own torrent tracking server.
    Downloads: 8 This Week
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  • 4
    Brunch

    Brunch

    Web applications made easy

    Brunch lets you focus on what matters most, solving real problems instead of messing around with the glue. By being opinionated about your build pipeline, Brunch is able to provide a smooth and fast experience, and makes your config files take a drastic cut. It doesn't take much to get around with brunch. 'brunch new' to create a new project. 'brunch build' to build. 'brunch watch' to live-compile. Installation is one-line, once you have node.js. You will find that the typical config of a Brunch application is an order of magnitude simpler, compared to Webpack, Grunt, or Gulp. Besides configs, brunch is also simpler in terms of commands. Grunt / Gulp commands replicate all plugins it loads. Brunch always has three commands: new, build and watch. Build / watch commands may receive optional production flag which will tell Brunch to optimize assets, javascripts and stylesheets.
    Downloads: 8 This Week
    Last Update:
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  • 5
    Butterchurn

    Butterchurn

    Butterchurn is a WebGL implementation of the Milkdrop Visualizer

    Butterchurn is a WebGL-based music visualization engine that recreates the classic MilkDrop visualizer experience entirely in the browser using modern web technologies. It is designed to render complex, real-time audio-reactive graphics that respond dynamically to music input, producing highly immersive and fluid visual effects. The engine uses GPU acceleration through WebGL to achieve high performance, allowing it to handle intricate shader-based visualizations without overwhelming system resources. Butterchurn supports preset-based rendering, enabling users to load, customize, and switch between a wide variety of visual styles that evolve over time with the audio signal. It can integrate with web audio sources, making it suitable for use in browser-based music players, streaming platforms, or standalone visualization tools. The project emphasizes both artistic expression and technical performance, offering a balance between visual complexity and efficiency.
    Downloads: 8 This Week
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  • 6
    DuckDuckGo Android App

    DuckDuckGo Android App

    Privacy browser for Android

    DuckDuckGo is an app that gives you utmost privacy when browsing online. It stops you from getting tracked and protects your personal and private information, no matter where the internet may take you. Apart from providing standard browsing functionality, DuckDuckGo blocks all hidden third-party trackers, forces sites to use an encrypted connection where available, and provides a Privacy Grade rating for each website you visit.
    Downloads: 8 This Week
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  • 7
    Gelbooru Client

    Gelbooru Client

    A material client to explore Gelbooru.com

    Gelbooru Client is an open-source application designed to provide a streamlined interface for browsing, searching, and interacting with content from the Gelbooru image board platform. It offers users a more structured and user-friendly experience compared to accessing the site through a web browser, enabling efficient navigation of large image datasets. The application typically includes features such as tag-based searching, filtering, and sorting, which are essential for exploring Gelbooru’s extensive content library. It also supports image viewing, downloading, and bookmarking, allowing users to manage their collections more effectively. The client is built to optimize performance when handling large volumes of media, ensuring smooth loading and interaction. Its open-source nature allows developers to customize or extend functionality based on their needs.
    Downloads: 8 This Week
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  • 8
    HTML5 Boilerplate

    HTML5 Boilerplate

    The web’s most popular front-end template

    HTML5 Boilerplate is a popular and professional front-end template that lets you build fast, robust and adaptable web sites or applications. It’s built with the combined knowledge and effort of hundreds of developers over a span of years, creating a powerful tool in one small package. HTML5 Boilerplate comes loaded with great features, such as HTML5 support, optimized Google Analytics snippet, jQuery and Modernizr, and so much more. It supports the latest and most popular browsers and does not impose a specific development philosophy or framework, so you can code any way you want.
    Downloads: 8 This Week
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  • 9
    Matter.js

    Matter.js

    A 2D rigid body physics engine for the web

    Matter.js is a flexible 2D rigid body physics engine written in JavaScript, designed for use in web applications to simulate real-world physical interactions within the browser. It offers a comprehensive set of physics features like gravity, collisions, restitution (bounces), friction, sleeping bodies, and constraint systems that enable developers to build interacting objects with realistic motion. This engine can power everything from dynamic interactive animations and educational simulations to fully fledged physics-based games, and it works across major browsers and devices. Through modules such as Matter.Body, Matter.Composite, and Matter.Constraint, developers can create complex scenes with multiple bodies, jointed structures, and collision responses. Matter.js is popular in the web development community due to its simplicity, extensibility, and rich documentation, allowing both beginners and experienced programmers to leverage physics without deep expertise.
    Downloads: 8 This Week
    Last Update:
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  • 10
    NGINX Proxy Manager

    NGINX Proxy Manager

    Docker container for managing Nginx proxy hosts

    Expose web services on your network. Free SSL with Let's Encrypt. Designed with security in mind. Perfect for home networks. Expose your private network Web services and get connected anywhere. Based on Tabler, the interface is a pleasure to use. Configuring a server has never been so fun. Configure other users to either view or manage their own hosts. Full access permissions are available. Built as a Docker Image, Nginx Proxy Manager only requires a database. Built in Let’s Encrypt support allows you to secure your Web services at no cost to you. The certificates even renew themselves! Easily create forwarding domains, redirections, streams and 404 hosts without knowing anything about Nginx. I created this project to fill a personal need to provide users with a easy way to accomplish reverse proxying hosts with SSL termination and it had to be so easy that a monkey could do it.
    Downloads: 8 This Week
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  • 11
    NemoClaw

    NemoClaw

    NVIDIA plugin for secure installation of OpenClaw

    NVIDIA NemoClaw is an open-source tool designed to simplify the deployment and management of always-on AI assistants using the OpenClaw ecosystem. It installs and configures the NVIDIA OpenShell runtime, which provides a secure environment for running autonomous AI agents. NemoClaw enables users to launch sandboxed agent environments that control network access, file permissions, and inference requests through policy-based security. The platform integrates with AI models such as NVIDIA Nemotron and supports multiple inference backends including cloud APIs, local NIM deployments, and vLLM. Through its command-line interface, developers can deploy, monitor, and manage AI assistants running inside isolated sandboxes. By combining sandbox orchestration, agent management, and AI model integration, NemoClaw provides a secure foundation for building and operating autonomous AI assistants.
    Downloads: 8 This Week
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  • 12
    Netlify CMS

    Netlify CMS

    A Git-based CMS for static site generators

    Open source content management for your Git workflow. Use Netlify CMS with any static site generator for a faster and more flexible web project. Get the speed, security, and scalability of a static site, while still providing a convenient editing interface for content. Content is stored in your Git repository alongside your code for easier versioning, multi-channel publishing, and the option to handle content updates directly in Git. Netlify CMS is built as a single-page React app. Create custom-styled previews, UI widgets, and editor plugins or add backends to support different Git platform APIs. Getting started is simple and free. Choose a template that’s pre-configured with a static site generator and deploys to a global CDN in one click. You get to implement modern front end tools to deliver a faster, safer, and more scalable site. Editors get a friendly UI and intuitive workflow that meets their content management requirements.
    Downloads: 8 This Week
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  • 13
    OmniDB

    OmniDB

    Open Source Web Tool for Database Management

    OmniDB is an open source, collaborative web tool for database management focused on interactivity and ease of use, with a design that allows it to be both powerful and lightweight. OmniDB is a browser-based tool, which means it can be accessed on any platform with the browser as a medium. It features a responsive, single-page interface, a unified workspace, a smart and beautiful SQL editor and more. It currently supports Windows, Linux and OSX platforms, and the following DBMS: PostgreSQL, MariaDB, Oracle, MySQL, SQLite (WIP), Firebird (WIP), SQL Server (WIP), IBM DB2 (WIP).
    Downloads: 8 This Week
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  • 14
    Phaser Editor 2D

    Phaser Editor 2D

    A web-based IDE for HTML5 game development. Powered by Phaser

    Phaser Editor 2D v3 is a lightweight, multi-platform IDE for HTML5 game development using the Phaser framework. It combines visual tools and code editing capabilities, helping developers design scenes, UI, and game logic in an efficient and organized workflow.
    Downloads: 8 This Week
    Last Update:
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  • 15
    SVGO

    SVGO

    Node.js tool for optimizing SVG files

    SVG Optimizer is a Node.js-based tool for optimizing SVG vector graphics files. SVG files, in particular those exported from multiple editors, normally contain tons of redundant and useless information. This can include editor metadata, comments, hidden elements, default or non-optimal values and other stuff that can be safely removed or converted without affecting the SVG rendering result. Some options can be configured with CLI though it may be easier to have the configuration in a separate file. SVGO has a plugin-based architecture, so almost every optimization is a separate plugin.
    Downloads: 8 This Week
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  • 16
    TradingView MCP Bridge

    TradingView MCP Bridge

    AI-assisted TradingView chart analysis

    TradingView MCP Bridge connects an AI coding assistant to a locally running TradingView Desktop application. It communicates through the Chrome DevTools Protocol and exposes chart controls through MCP tools and a command-line interface. The assistant can navigate symbols and timeframes, inspect indicator values, capture screenshots, draw annotations, manage alerts, and configure multi-pane layouts. Pine Script workflows include writing, injecting, compiling, debugging, and iterating on scripts from natural-language requests. Replay controls allow users to step through historical bars for analysis and practice. Processing remains on the local machine, and the tool requires an installed TradingView Desktop application with legitimate account access. It does not execute trades, and its reliance on undocumented internal interfaces means application updates may affect compatibility.
    Downloads: 8 This Week
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  • 17
    WebViewer UI

    WebViewer UI

    WebViewer UI built in React

    WebViewer UI sits on top of WebViewer, a powerful JavaScript-based PDF Library that's part of the PDFTron PDF SDK. Built in React, WebViewer UI provides a slick out-of-the-box responsive UI that interacts with the core library to view, annotate and manipulate PDFs that can be embedded into any web project. This repo is specifically designed for any users interested in advanced customizations. With the source code access, it gives developers full control to customize & style the UI, build custom controls & logic, integrate into workflows, or build a UI from scratch. Any approved pull requests made to this repository are merged into WebViewer's internal builds, and can be accessed through the nightly builds. Any approved pull requests to the master branch will go to WebViewer's nightly experimental builds and pull requests to version number branches will go to that version's nightly stable.
    Downloads: 8 This Week
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  • 18
    canvas-editor

    canvas-editor

    Canvas-based WYSIWYG rich text editor with advanced layout tools

    canvas-editor is a browser-based rich text editor that renders content using HTML5 Canvas and SVG instead of traditional DOM-based approaches. It is designed to provide a WYSIWYG editing experience similar to word processors, enabling precise control over layout, rendering, and document structure. canvas-editor supports a wide range of formatting and document features, including text styling, tables, images, and embedded elements, all managed through a structured data model. Its architecture is modular, allowing developers to extend functionality through plugins, custom commands, and event hooks. It includes support for page-based layouts with headers, footers, pagination, and print-ready output, including PDF generation. It also provides interactive components such as form controls and context menus, making it suitable for building complex document editing systems.
    Downloads: 8 This Week
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  • 19
    create-dmg

    create-dmg

    Create a good-looking DMG for your macOS app in seconds

    Imagine you have finished a macOS app, exported it from Xcode, and now want to distribute it to users. The most common way of distributing an app outside the Mac App Store is by putting it in a .dmg file. These are hard to create, especially good-looking ones. You can either pay for a GUI app where you have to customize an existing design or you can run some homebrewed Bash script and you still have to design it. This tool does everything for you, so you can play with your cat instead. The DMG detects the minimum runtime of the app, and uses ULFO (macOS 10.11 or later) or UDZO as appropriate. The resulting image has the filename App Name 0.0.0.dmg, for example, Lungo 1.0.0.dmg. It will try to code sign the DMG, but the DMG is still created and fine even if the code signing fails, for example if you don't have a developer certificate.
    Downloads: 8 This Week
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  • 20
    shuohao-skills

    shuohao-skills

    Agent skills for AI short-drama production

    shuohao-skills is a collection of reusable workflows for AI coding agents such as Claude Code and Codex. Its current featured skill transforms novels into structured character-development packages. The workflow can generate character profiles, visual design prompts, voice prompts, and model sheets from source fiction. Output language and image style can be configured for different creative pipelines, although the current implementation is Chinese-first. Installation scripts automatically link skills into supported agent environments and allow individual skills to be installed separately. Each skill is self-contained and includes documentation, deterministic helper scripts, references, examples, and local self-tests.
    Downloads: 8 This Week
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  • 21
    web3.js

    web3.js

    Ethereum JavaScript API

    web3.js is the Ethereum JavaScript API that connects to the Generic JSON-RPC spec. It is composed of a selection of libraries that make it possible to interact with a local or remote ethereum node, using a HTTP or IPC connection. The node may be local, hosted by the DApp provider, or a public gateway such as Infura, which operates free Ethereum access points. It is necessary to run a local or remote Ethereum node to be able to use this library. web3.js is directly usable on web technology and is also commonly used on the server side in Node.js applications and in Electron-based desktop applications.
    Downloads: 8 This Week
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  • 22
    ytDownloader

    ytDownloader

    Desktop App for downloading Videos and Audios from hundreds of sites

    ytDownloader is a modern desktop application designed to download videos and extract audio from hundreds of online platforms through a clean graphical user interface. Built as a cross-platform tool for Windows, macOS, and Linux, it leverages tools like yt-dlp and FFmpeg under the hood while abstracting their complexity into an intuitive user experience. The application supports downloading from major platforms such as YouTube, Facebook, TikTok, Instagram, Twitch, and Twitter, offering users the ability to retrieve content in multiple formats and resolutions including MP4, MP3, and WebM. It includes advanced features such as playlist downloading, subtitle extraction, and range selection for partial downloads, making it useful for both casual users and power users. Additionally, ytDownloader incorporates hardware-accelerated video compression, multiple UI themes, and localization support, enhancing both performance and usability.
    Downloads: 8 This Week
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  • 23
    RECOIL

    RECOIL

    Retro Computer Image Library

    Retro Computer Image Library decodes Amiga, Amstrad CPC, Apple II, Atari 8-bit, Atari Portfolio, Atari ST/TT/Falcon, BBC Micro, Commodore 64, Commodore 16/116/Plus4, Commodore 128, Electronika BK, FM Towns, HP 48, Macintosh 128K, MSX, NEC PC-80/88/98, Oric, SAM Coupe, Sharp X68000, Tandy 1000, Timex 2048, TRS-80, TRS-80 Color Computer, ZX81 and ZX Spectrum picture formats. The project contains a simple viewer, plug-ins for general-purpose image viewers and editors, and an everything-to-png converter.
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    Downloads: 117 This Week
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  • 24
    NagiosQL - Nagios configuration tool
    NagiosQL is a professional, web based configuration tool for Nagios 2.x/3.x/4.x. It is designed for large enterprise requirements as well as small environments. Any Nagios functionalities are supported.
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    Downloads: 48 This Week
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  • 25
    ImpressCMS

    ImpressCMS

    Make a lasting impression!

    Community websites can be difficult to maintain and a target for hackers. But, not with ImpressCMS behind it. Started in 2007 by a talented and committed group of developers and designers unhappy with the progress of the projects they were working on, ImpressCMS continues to lead in providing secure, easy to build and maintain community websites. ImpressCMS is built using PHP and MySQL, and employs JavaScript and Smarty and is optimized for performance - on even shared hosts. Secure. Easy. Open. Friendly.
    Downloads: 38 This Week
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