Open Source JavaScript Software - Page 32
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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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Ship Agents FasterGemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
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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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Bowser
Bowser is a browser detector
A small, fast and rich-API browser/platform/engine detector for both browser and node. The library is made to help to detect what browser your user has and gives you a convenient API to filter the users somehow depending on their browsers. Version 2.0 has drastically changed the API. All available methods are on the docs page. Often we need to pick users' browser properties such as the name, the version, the rendering engine and so on. You could want to filter some particular browsers to provide any special support for them or make any workarounds. Settings for any particular OS or platform has more priority and redefines settings of standalone browsers. Thus, you can define OS or platform-specific rules and they will have more priority in the end. More of API and possibilities you will find in the docs folder. -
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CSSO
CSS minifier with structural optimizations
CSSO (CSS Optimizer) is a CSS minifier. It performs three sorts of transformations: cleaning (removing redundant), compression (replacement for the shorter forms), and restructuring (merge of declarations, rules, and so on). As a result, an output CSS becomes much smaller in size. One of CDN services like unpkg or jsDelivr can be used. By default (for short path) the ESM version is exposed. For IIFE version a full path to a bundle should be specified. CSSO is based on CSSTree to parse CSS into AST, AST traversal and to generate AST back to CSS. All CSSTree API is available behind syntax field extended with compress() method. You may minify CSS step by step. CSSO can use data about how CSS is used in the markup for better compression. File with this data (JSON) can be set using the usage option. -
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Cap CAPTCHA
The privacy-first, self-hosted CAPTCHA for the modern web
Cap is a privacy-first, self-hosted CAPTCHA system designed as a modern alternative to traditional third-party verification services. It replaces invasive tracking-based CAPTCHA solutions with a lightweight approach based on proof-of-work and client-side instrumentation. The system can be deployed independently, giving developers full control over user data and verification processes. It integrates easily into web applications and focuses on maintaining usability while preventing automated abuse. Cap avoids reliance on centralized providers, reducing dependency on external services and improving privacy compliance. Its design reflects a shift toward decentralized, user-respecting security mechanisms. It is particularly suited for developers who want transparent and customizable bot protection. -
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Chinese Traditional Colors
Open source project for traditional Chinese color demonstrations
Chinese Traditional Colors is an open-source reference project for Chinese traditional color exploration, education, and design use. It organizes 742 traditional Chinese color cards with names, HEX values, RGB values, CMYK values, palette notes, and mood keywords. The project is designed for interface designers, content creators, educators, cultural websites, and anyone who needs historical color references that work in modern layouts. Its website supports browsing, searching, saving favorites, testing colors in scenes, and generating usable palettes. It also includes harmony relationships, gradient logic cards, usage cards, and downloadable resources for local reference. It is useful as both a cultural color archive and a practical design tool for building visually coherent projects. -
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Chokidar
Minimal and efficient cross-platform file watching library
Chokidar is a solution for all the users of Node.js fs.watch who are tired of it not reporting filenames on MacOS and events at all when using editors like Sublime on MacOS. Node.js fs.watch often reports events twice, emits most changes as rename, and it does not provide an easy way to recursively watch file trees nor supports recursive watching on Linux. Same as with Node.js fs.watchFile. Therefore, Chokidar resolves these problems. Initially made for Brunch (an ultra-swift web app build tool), it is now used in Microsoft's Visual Studio Code, gulp, karma, PM2, browserify, webpack, BrowserSync, and many others. It has proven itself in production environments. Chokidar does still rely on the Node.js core fs module, but when using fs.watch and fs.watchFile for watching, it normalizes the events it receives, often checking for truth by getting file stats and/or dir contents. -
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ChromeAppHeroes
Chinese manual for excellent Chrome plug-ins
ChromeAppHeroes appears to be a repository with sample or template Chrome apps/extensions — perhaps intended to help developers learn how to build Chrome applications, quick prototypes, or small utilities. As such, it likely includes boilerplate code, manifest definitions, example UI components, and sample functionality (e.g. browser-action buttons, content scripts, background scripts) to illustrate how to structure a Chrome app. For learners or developers new to Chrome extension/app development, ChromeAppHeroes could serve as a starting kit: instead of starting from scratch, they can clone or fork the repo and immediately begin building features, thereby speeding up development. The repository’s open-source nature means users are free to adapt, extend, or repurpose the sample apps to their own needs — for example, privacy tools, quick productivity extensions, or custom browser tooling. -
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Claude HUD
A Claude Code plugin that shows what's happening
Claude HUD is a real-time monitoring add-on for Claude Code that places a persistent heads-up display directly in your interactive session, giving developers clear insight into what the AI engine is doing at every moment. Instead of guessing about hidden processes behind the scenes, users see the amount of context remaining in the current session, tools being used, active running agents, and the progress of TODO tasks that the AI has planned or is executing. This plugin was designed to reduce cognitive load and make agentic workflows more transparent, helping developers diagnose stalled tasks, understand resource usage, and manage multi-step reasoning sequences more effectively. It installs with zero configuration and appears immediately in Claude Code, making it helpful for both newcomers and seasoned users who want better situational awareness without interrupting their workflow. -
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CloudServer
Zenko CloudServer open-source Node.js implementation of S3 protocol
Zenko CloudServer, an open-source Node.js implementation of the Amazon S3 protocol on the front-end and backend storage capabilities to multiple clouds, including Azure and Google. -
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Codebox
Open source cloud & desktop IDE
Codebox is a complete and modular Cloud IDE. It can run on any unix-like machine (Linux, Mac OS X). It is an open source component of codebox.io (Cloud IDE as a Service). The IDE can run on your desktop (Linux or Mac), on your server or the cloud. You can use the codebox.io service to host and manage IDE instances. Codebox is built with web technologies: node.js, javascript, html and less. The IDE possesses a very modular and extensible architecture, that allows you to build your own features with through add-ons. Codebox is the first open and modular IDE capable of running both on the Desktop and in the cloud (with offline support). -
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Complete JavaScript Course
Starter files, final projects, and FAQ for Complete JavaScript course
Complete JavaScript Course is the official code repository for Jonas Schmedtmann’s Complete JavaScript Course. It contains starter files, final project files, and frequently asked questions that support the video-based Udemy course. The material is organized by course sections, covering fundamentals, developer skills, DOM projects, JavaScript internals, data structures, functions, arrays, OOP, asynchronous JavaScript, modules, tooling, and larger final applications. Learners can start with the starter code and compare their work with the final versions when debugging. The repository also links to deployed examples of major projects such as Pig Game, Bankist, Mapty, and forkify. It is primarily an educational companion resource rather than a standalone software product. -
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CoreUI Free Vue Admin Template v4
Open source admin template based on Bootstrap 5 and Vue 3
Time is our most valuable asset, that's why we want to help you save it by creating simple, customizable, easy-to-learn Vue.js UI components and Vue.js Admin Templates which significantly cut development time. CoreUI lets you save thousands of priceless hours because it offers everything you need to create modern, beautiful, and responsive Vue.js-based applications. CoreUI is meant to be the UX game changer. Pure & transparent code is devoid of redundant components, so the app is light enough to offer the ultimate user experience. This means mobile devices also, where the navigation is just as easy and intuitive as on a desktop or laptop. The CoreUI Layout API lets you customize your project for almost any device, be it Mobile, Web or WebApp, CoreUI covers them all! Save thousands of development hours by using ready-made, reusable, and commonly used widgets and UI components. Moreover, CoreUI Vue Admin Template is delivered with a ready-to-use environment. -
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Crash-Course-Computer-Science-Chinese
Computer Crash Course (40 complete episodes)
Crash-Course-Computer-Science-Chinese is a translation and subtitle project for the full 40-episode Crash Course Computer Science series. It offers high-quality Chinese subtitles (including a “refined” or “proofread” edition) for each episode, making the series more accessible to Chinese-speaking learners. The repository links directly to video uploads on platforms like Bilibili and provides the subtitle text both as a single combined file and as separate files per episode. Beyond subtitles, the project’s README collects links to community-made study notes, mind maps, and other learning aids that expand on the course content. It documents the translation timeline in detail, from initial episode releases to completion and later refinement, giving transparency into the project’s maturation. The repo also credits the translators and proofreaders by name and platform, emphasizing community effort and recognition. -
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DECK
DECK is a powerful and high performant local web development studio
DECK is a powerful and high-performing local web development studio unlike any other, install & try out more than 40+ open source stacks. Create any number of development environments right from your localhost. DECK's integrated marketplace lets you spin up stacks with just a click of a button. Popular web technologies such as LAMP, LEMP, MERN, MEAN, Laravel, Symfony, WordPress, Magento & many more are available out of the box. DECK's inbuilt SSL engine powered by LetsEncrypt and a supercharged proxy layer enables full HTTPS on localhost apps. -
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DHTMLX Gantt
GPL version of Javascript Gantt Chart
DHTMLX Gantt is a full-featured JavaScript library for creating interactive Gantt charts in web applications. It supports drag-and-drop, critical path visualization, and customizable task hierarchies, making it ideal for project planning tools. Its modular architecture and API provide extensive customization for developers. -
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DashiAI PPT Skill
An AI-agent skill that generates browser-editable presentations
DashiAI PPT Skill is an AI-agent skill for generating editable presentation decks from documents, briefs, or plain requests. It creates a browser-based HTML deck that opens locally and includes an editing console on every page. Users can change text, layouts, charts, images, palettes, module counts, and page transitions after generation. The project includes 12 visual themes and more than 1,000 layout pages for reports, pitches, research, technical proposals, and business reviews. It can export decks as offline HTML, PDF, or real editable PPTX files. The skill is designed for local agents that can read files, write files, run shell commands, and use Node.js. -
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DeckTape
PDF exporter for HTML presentations
DeckTape is a high-quality PDF exporter for HTML presentation frameworks. DeckTape is built on top of Puppeteer which relies on Google Chrome for laying out and rendering Web pages and provides a headless Chrome instance scriptable with a JavaScript API. DeckTape currently supports the following presentation frameworks out of the box. DeckTape also provides a generic command that works by emulating the end-user interaction, allowing it to be used to convert presentations from virtually any kind of framework. The generic mode is particularly useful for supporting HTML presentation frameworks that don’t expose an API or accessible state. DeckTape’s plugin-based architecture exposes an extension API, making it possible to add support for other frameworks or to tailor existing plugins to your specific needs. -
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Devon
Open source AI pair programmer for coding, debugging, automation
Devon is an open source AI-powered pair programming tool designed to assist developers with software engineering tasks through natural language interaction. It operates as an agent-based system that can explore codebases, edit files, and execute development workflows with minimal manual intervention. Devon uses a client-server architecture with a Python backend and multiple user interfaces, including a terminal interface and an Electron-based desktop application. Devon integrates with multiple large language models, allowing users to choose between different providers for performance, cost, and latency considerations. It is capable of performing tasks such as debugging, writing tests, analyzing code structure, and navigating complex repositories. Devon also includes features for session management, enabling users to start, pause, and revert actions while maintaining context. -
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Dexie.js
A Minimalistic Wrapper for IndexedDB
Dexie was written to be straightforward and easy to learn. If you've ever had to work with native IndexedDB then you'll certainly appreciate Dexie's concise API. What good is any development tool without great documentation? Dexie is thoroughly explained, and examples are available to help you on your way. Dexie has near-native performance. Its bulk operations utilize an often-overlooked feature in IndexedDB, ignoring success callbacks when possible. Offline databases are groovy! But without keeping the database in sync with a server, you're missing a great deal. Dexie.js solves these limitations and provides a neat database API. Dexie.js aims to be the first-hand choice of a IDB Wrapper Library due to its well thought-through API design, robust error handling, extendability, change tracking awareness and its extended KeyRange support (case insensitive search, set matches and or operations). -
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EOL Rambox CE
Free and Open Source messaging and emailing app
Free, Open Source and cross-platform messaging and emailing app that combines common web applications into one. -
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FAY
Framework for building AI-powered interactive digital humans and agent
Fay is an open source framework designed to build and deploy interactive digital humans powered by large language models. It acts as a middleware layer that connects digital character technologies with conversational AI systems and business applications. Fay supports various types of digital humans, including 2.5D and 3D avatars, and can be integrated with applications running on mobile devices, PCs, web platforms, and embedded systems. Its architecture allows developers to combine different AI components such as speech recognition, text-to-speech, and large language models to create conversational digital agents. Fay provides multiple interfaces for text, voice, and digital human control, enabling developers to build interactive assistants, virtual presenters, or automated service agents. It also supports custom knowledge bases and configurable behaviors so developers can tailor the personality and responses of the digital human. -
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FSKneeboard
FSKneeboard adds a helpful ingame panel to your flight simulator
FSKneeboard (formerly known as "VFR Map For VR") adds a helpful in-game panel to your flight simulator which brings several different maps, waypoints and tracks, a charts viewer, and a notepad right into your Flight Simulator cockpit! This is is especially helpful for those of us who like to fly in VR. Powerful, highly detailed maps for your next VFR trip. Optimized for VR! Your approach charts, checklists, and notes at your fingertips. Use your mouse to quickly take notes of ATIS and ATC instructions. Automatically create snapshots/savegames from your flights every few minutes so you're able to recover Flight Simulator instabilities and crashes (fully configurable, see Advanced Usage Section for details). Search for any address or POI worldwide right from FSKneeboard and add it as waypoint or even teleport there. Windows Installer for simple installation and configuration. -
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FastClick
Easy-to-use library to remove click delays on browsers with touch UIs
FastClick is a simple, easy-to-use library for eliminating the 300ms delay between a physical tap and the firing of a click event on mobile browsers. The aim is to make your application feel less laggy and more responsive while avoiding any interference with your current logic. FastClick is developed by FT Labs, part of the Financial Times. Note: As of late 2015 most mobile browsers - notably Chrome and Safari - no longer have a 300ms touch delay, so fastclick offers no benefit on newer browsers, and risks introducing bugs into your application. Consider carefully whether you really need to use it. The library has been deployed as part of the FT Web App. FastClick doesn't attach any listeners on desktop browsers. -
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Fidus Writer
Fidus Writer is an online collaborative editor for academics
Fidus Writer is an online collaborative editor especially made for academics who need to use citations and/or formulas. The editor focuses on the content rather than the layout, so that with the same text, you can later on publish it in multiple ways: On a website, as a printed book, or as an ebook. In each case, you can choose from a number of layouts that are adequate for the medium of choice. -
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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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Franz 5
Franz is a free messaging app for services like WhatsApp, Slack, etc,
Franz is your messaging app for WhatsApp, Facebook Messenger, Slack, Telegram and many many more. Franz supports a great variety of business and private messaging & chat services like Slack, WhatsApp, WeChat, Messenger, Telegram, Google Hangouts, Skype, Zendesk and many more. It does not matter if you just want to keep in touch with your friends or are managing a multi-seat customer care team. Franz got you covered. Franz allows you to add each service many times. This makes Franz the perfect tool to manage multiple business and private accounts all at the same time. You could even use five different Facebook Messenger accounts at once, if some inexplicable reason urges you to do so. Franz Workspaces help you create distraction-free work environments by making sure you’re only getting the notifications you absolutely need while working on a specific project. Setting up different Workspaces for business and private life is also an easy way to disconnect from work at home.