Open Source JavaScript Software - Page 70
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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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Goofy
Desktop client for Facebook Messenger
Goofy is a macOS client for Facebook Messenger. But unlike most other clients, it does not use any of Facebook's APIs, but is basically a single-site browser that injects a little CSS and JS into messenger.com to make it a little more app-like. Feel free to create issues on this repo for feature requests of any kind. However, some features may not be possible due to the way this application is working. Also, I don't want this to be a feature-bloated monster, but a slick and small app. Depending on the number of contributors and the progress of this app, I will schedule releases from time to time, which will then be distributed on goofyapp.com. To debug, there's a VSCode launch.json that can be used to debug the Electron app. To debug the Facebook JavaScript changes you'll need to use the Chrome Web Inspector. -
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Google Map React
Google map library for react that allows rendering components
Google map library for react that allows rendering components as markers. google-map-react is a component written over a small set of the Google Maps API. It allows you to render any React component on the Google Map. It is fully isomorphic and can render on a server. Additionally, it can render map components in the browser even if the Google Maps API is not loaded. It uses an internal, tweakable hover algorithm - every object on the map can be hovered. It allows you to create interfaces like this example (You can scroll the table, zoom/move the map, hover/click on markers, and click on table rows) In the simple case you just need to add lat and lng props to any child of GoogleMapReact component. -
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Graphics Workshop
Learn computer graphics by writing GPU shaders
Graphics Workshop is an educational computer graphics repository built around writing GPU shaders. It teaches graphics concepts through interactive two-dimensional and three-dimensional browser projects. The workshop covers topics such as fragment shaders, procedural textures, rasterization, lighting, stylized rendering, and real-time ray tracing. It is designed so learners can focus on shader code while the surrounding WebGL and JavaScript harness is already provided. Projects are meant to run in real time on modern GPUs and encourage creative visual experimentation. It is especially useful for programmers who want a practical entry point into computer graphics without starting from a blank rendering engine. -
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Guizang Social Card Skill
Claude Code / Codex skill — generate Xiaohongshu carousels
Guizang Social Card Skill is an AI-agent skill for generating polished social image packages in a Guizang-inspired visual style. It is designed for formats such as Xiaohongshu or Rednote carousels, WeChat Official Account covers, article covers, product update graphics, thumbnails, and screenshot-heavy posts. The skill turns articles, scripts, screenshots, product notes, subtitles, or photos into structured social card outputs. It supports editorial magazine layouts and Swiss-style visual systems, giving agents rules for typography, spacing, covers, and page rhythm. The project is self-contained and meant to be used by AI coding or agent tools as a repeatable creative workflow. It is useful for creators, marketers, designers, and content teams producing platform-ready social visuals. -
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HUSTOJ
Popular Open Source Online Judge based on PHP/C++/MySQL/Linux
Popular Open Source Online Judge based on PHP/C++/MySQL/Linux for ACM/ICPC and NOIP training, with easy installation. Open source OJ system. HUSTOJ is free software under the GPL. (Only the original part of the code, which uses components from other open-source projects, please follow the agreement of the original component.) Because the web terminal/database/judgment machine are all packaged in the same image and cannot be extended, it is not recommended to use this image for distributed judgment. In addition, please do not use the SHM file system in Docker, it will be unable to mount due to insufficient memory space The sandbox environment causes inexplicable runtime errors. The default location of script installation is /home/judge, where src is all source code, data is test data, etc directory is the configuration file of the judgment side, and the install directory is various tool scripts. -
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Hacklock
Hack Android Pattern From Termux With This Tool
Hacklock is a Bash-based Termux project designed to imitate an Android pattern-lock interface and capture the pattern entered into it. The repository describes the workflow as phishing rather than as direct exploitation of Android's lock-screen security. It claims to work from both rooted and non-rooted Android devices because the collection mechanism is delivered through a web-style lure rather than a device privilege escalation. The project includes support for exposing the imitation page through tunneling services and displaying the captured pattern in a numbered representation. Its interface also includes update, information, and exit functions. The tool is suitable only for controlled awareness testing or research with explicit authorization because using it to obtain another person's unlock pattern would be credential theft. -
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Hallmark
Anti-AI-slop design skill for Claude Code, Cursor, and Codex
Hallmark is an anti-AI-slop design skill for AI coding assistants such as Claude Code, Cursor, and Codex. It gives agents a concrete design rule set for producing interfaces that look intentionally crafted rather than generic, repetitive, or template-like. The project focuses on typography, color, layout, motion, microinteractions, visual hierarchy, and structural variation. It can be used to build new UI, audit existing code, or redesign an interface while keeping the underlying content and information architecture. Hallmark includes reference material and worked examples so agents can apply the design logic more consistently. Its main value is helping AI-generated interfaces move from “technically functional” to visually deliberate and product-ready. -
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Handsontable
JavaScript data grid with a spreadsheet look & feel
Rock-solid data grid for web applications. A JavaScript component that combines data grid features with spreadsheet-like UX. Legendary support included. Works with React, Angular, Vue, and JavaScript. When you work with Handsontable, it's like you're working with Excel or Google Sheets. There's no steep learning curve – you can start working effectively from day one. Handsontable is easy to implement, flexible, and super customizable. You can extend it with custom plugins and edit the source code to adjust it to your product. Plus you get access to a comprehensive API, useful tutorials, and both community and commercial support. You can finally work with large volumes of data without worrying about performance issues. Large companies and startups across industries use Handsontable to build applications critical to their business. -
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Hiper
A statistical analysis tool for performance testing
Hiper is an open-source command-line tool designed for statistical analysis of web performance and page load behavior during performance testing. The tool repeatedly loads a specified webpage multiple times and gathers detailed timing metrics in order to produce more reliable performance measurements than single-run benchmarks. By averaging data across multiple page loads, Hiper helps developers understand whether performance optimizations actually improve real-world page loading behavior. The tool relies on browser performance timing data to capture metrics such as DNS lookup time, TCP connection time, time to first byte, download duration, DOM readiness, and total page load time. Hiper runs from the command line and can be installed globally using Node.js package managers, making it simple to integrate into development or testing workflows. -
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Home Assistant Config (hass-config)
A different take on designing a Lovelace UI (Dashboard)
hass-config is a user’s home automation configuration repository (for Home Assistant) that captures their YAML files, scripts, automations, dashboards, and integrations in a version-controlled layout. By organizing all Home Assistant components—sensors, automations, scripts, themes, and Lovelace UI definitions—into a structured hierarchy, the repo helps maintain consistency, shareability, and backup of the smart home setup. Because Home Assistant involves complex interdependencies between devices and automations, having a central config repo ensures changes are traceable and easily reverted. The repository often includes templates, secrets configuration, and skip-files to avoid committing sensitive credentials. For users running multiple installations or migrating devices, hass-config serves as the canonical definition of the automation state. It’s especially helpful for community users who share automations, troubleshoot setups, or onboard new devices. -
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HospitalRun website
HospitalRun website
With Jekyll 3 it was must necessary to switch from GitHub Pages to Netlify. hospitalrun.io is made with Jekyll a simple, blog-aware, static site generator. It takes a template directory containing raw text files in various formats, runs it through a converter (like Markdown) and our Liquid renderer, and spits out a complete, ready-to-publish static website suitable for serving on Netlify. -
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Huashu Art Motion
Art animation skill: 35 art styles, 9 explanatory grammars
Huashu Art Motion is an Agent Skill for producing code-driven animated art and explainer videos. It includes 35 art-style recipes spanning historical painting, modern design, comics, pixel art, and digital aesthetics. Each style provides rendering guidance, motion ideas, scene code, and characteristic transitions rather than a static image prompt alone. Nine explainer grammars cover formats such as Vox-style graphics, whiteboards, kinetic typography, finance charts, and 3Blue1Brown-inspired animation. Parameterized clips can be driven by JSON and rendered for landscape, portrait, or transparent-background output. Analysis scripts break reference animations into cuts, beat grids, and motion patterns before recreation. Quality tools measure stability, motion, smoothness, and other delivery characteristics. -
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Hugo Book Theme
Hugo documentation theme as simple as plain book
Hugo documentation theme as simple as a plain book. By default, the theme will render pages from the content/docs section as a menu in a tree structure. You can set title and weight in the front matter of pages to adjust the order and titles in the menu. There are a few configuration options that you can add to your config.toml file. A simple blog is supported in the section posts. A blog is not the primary use case of this theme, so it has only minimal features. The theme supports Hugo's multilingual mode, just follow the configuration guide there. You can also tweak search indexing configuration per language in i18n folder. There are layout partials available for you to easily override components of the theme in layouts/partials/. There are a few features implemented as plugable scss styles. Usually these are features that don't make it to the core but can still be useful. -
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HumanLayer
Open source IDE for orchestrating AI coding agents in large codebases
HumanLayer is an open source development environment designed to help developers orchestrate and manage AI coding agents working within complex software projects. It provides a framework and tooling that allow AI agents to research, plan, and implement changes in large codebases while maintaining structured workflows. It focuses on enabling AI-assisted development through coordinated agent workflows rather than isolated code generation tasks. HumanLayer integrates with modern AI models and coding assistants to automate tasks such as code research, planning, and implementation while maintaining a structured development process. HumanLayer introduces advanced context management techniques that help AI agents understand large repositories and operate effectively across multiple tasks. It also supports collaborative workflows where developers and AI agents can work together with human oversight and control. -
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Hyperapp
Tiny framework for building hypertext applications
The tiny framework for building hypertext applications. Do more with less—We have minimized the concepts you need to learn to get stuff done. Views, actions, effects, and subscriptions are all pretty easy to get to grips with and work together seamlessly. Write what, not how—With a declarative API that's easy to read and fun to write, Hyperapp is the best way to build purely functional, feature-rich, browser-based apps in JavaScript. Smaller than a favicon—1 kB, give or take. Hyperapp is an ultra-lightweight Virtual DOM, highly-optimized diff algorithm, and state management library obsessed with minimalism. Official packages provide access to The Web Platform, and ensure that the APIs are exposed in a way that makes sense for Hyperapp, and the underlying code is stable. We already cover a decent amount of features, but you can always create your own effects and subscriptions if something is not available yet. -
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IPFS Companion
Browser extension that simplifies access to IPFS resources on the web
IPFS Companion allows you to interact with your IPFS node and the extended IPFS network through your browser. The add-on is available for Brave, Chrome, Edge, Firefox, and Opera. It enables support for ipfs addresses, automatically loads websites and file paths from an IPFS gateway, allows you to easily import and share a file with IPFS, and more. IPFS Companion works in tandem with an IPFS node running on your local machine, so make sure you have a node installed before installing this add-on. The easiest way to install IPFS Companion is through your browser's add-on store. Make sure you have IPFS installed (opens new window)on your computer as well. Because IPFS Companion (in its standard configuration) talks to your computer's local IPFS node to work its browser magic, you'll need to have IPFS running on your computer, too. -
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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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Infinite Scroll
Automatically add next page
Infinite Scroll is a JavaScript plugin that automatically adds the next page, saving users from a full page load. You’ve likely seen it in use all over the web. The original version of Infinite Scroll was first released by Paul Irish 2008. It was a break-through work of front-end development, granting web developers a cutting edge experience via a user-friendly yet powerful jQuery plugin. That lineage scrolls on to this day. Infinite Scroll v4 supports Chrome 60+, Edge 79+, Firefox 55+, Safari 11+. For IE10 and Android 4 support, try Infinite Scroll v3. Infinite Scroll upholds URLs by changing them automatically as the user scrolls. Users can refresh the current page or return to a scrolled page and their position will be maintained. No more tears when you scroll 20 pages and accidentally hit refresh. Try out the full page demo. -
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InfluxDB MCP Server
An MCP Server for querying InfluxDB
An MCP server that provides access to InfluxDB instances using the InfluxDB OSS API v2, enabling operations such as data writing, query execution, and database object management. -
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Interactive FFMPEG Command Generator
Create and render complex ffmpeg filtergraphs in the browser
Interactive FFMPEG Command Generator is an experimental visual tool that allows users to explore and understand FFmpeg commands and filters interactively. It provides a graphical interface for constructing FFmpeg pipelines, making it easier to learn and experiment with complex media transformations. The tool focuses on education and exploration, helping users visualize how different filters and parameters affect output. It abstracts command-line complexity while still exposing the underlying FFmpeg logic. Developers and creators can use it to prototype workflows before translating them into scripts. The project encourages experimentation and discovery in multimedia processing. Its interface-driven approach makes FFmpeg more accessible to non-expert users. -
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Intro to CSS 3D transforms
Introduction to CSS 3D transforms
Intro to CSS 3D transforms is a collection of examples and demonstrations that showcase the capabilities of CSS 3D transforms for creating interactive and visually rich user interfaces. The project provides practical implementations of 3D effects such as rotations, perspective transformations, and animated transitions, helping developers understand how to apply these techniques in real-world applications. It focuses on simplicity and clarity, presenting examples that can be easily adapted or extended. The repository is particularly useful for frontend developers looking to enhance user interfaces with dynamic visual effects. It also demonstrates how to combine multiple transformations to create more complex interactions. The project serves as both a learning resource and a reference for implementing 3D effects in web design. Overall, 3dtransforms highlights the potential of CSS for creating engaging and interactive user experiences. -
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IsoCity
A isometric city builder in JavaScript
Isocity is an interactive web-based project that allows users to create their own isometric cities using modular blocks. It's designed as a fun and creative way to build pixel art cities. -
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JEKYLL YAT THEME
Yet another theme for elegant writers with modern flat style
Yet another theme for elegant writers with a modern flat style and beautiful night/dark mode. Here the YAT (Yet Another Theme) is a modern responsive theme. It's quite clear, clean, and neat for writers and posts. If you are an elegant writer and focus on content, don't miss it. -
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JS-Data
Give your data the treatment it deserves
JSData is a framework-agnostic, datastore-agnostic ORM for Node.js and the Browser. Adapters allow JSData to connect to various data sources such as Firebase, MySql, RethinkDB, MongoDB, localStorage, Redis, a REST API, etc. With JSData you can re-use your data modeling code between environments, keep your data layer intact when transitioning between app frameworks, and work with a unified data API on the server and the client. JSData employs conventions for rapid development, but allows for endless customization in order to meet your particular needs. -
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JSON Splora
GUI app for editing, visualizing, and manipulating JSON data
JSON-Splora is a GUI for editing, visualizing, and manipulating JSON data with jq or JavaScript. The editor is a JavaScript editor, and the input is parsed as json5. This allows for comments as well as a relaxed JSON input format. Once the editor has valid JSON, an input window will appear below, allowing you to manipulate the object with JavaScript or jq. A panel will appear to the right with the output, and updates live as the input or filter changes.
