Open Source JavaScript Software - Page 53
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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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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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JavaGuide
"Java Learning + Interview Guide" covers the core Java knowledge
JavaGuide is an open source knowledge base and learning resource for Java developers, created and maintained by Snailclimb. The project organizes and explains a wide range of Java-related concepts, from language fundamentals to advanced topics such as concurrency, JVM internals, distributed systems, and high availability design. It is especially popular among developers preparing for technical interviews, as it compiles common knowledge points, detailed explanations, and source code analyses that interviewers frequently explore. The repository also includes sections on computer science basics such as operating systems, networks, and data structures, along with practical guides for databases, Redis, MySQL, and MongoDB. Beyond core Java, JavaGuide covers tools like Maven, Docker, Git, and frameworks like Spring, Spring Boot, and MyBatis. Its structured approach makes it a comprehensive handbook for both beginners and experienced backend engineers. -
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JavaScript Standard Style
JavaScript style guide, linter, and formatter
JavaScript Standard Style is a JavaScript style guide with linter and automatic formatter. It’s the simple, easy, fuss-free way to get a consistent style in your project. No more hundred-line style configuration files for every module/project; no more messy or inconsistent code; and no more wasting time sending code back and forth between reviewer and contributor. With Standard, your code is automatically formatted, no configuration necessary. With Standard, code clarity and community conventions is paramount. This may not make sense to all projects or development cultures, but does make a lot of sense for open source projects where setting up clear, automated contributor expectations makes a project healthier. -
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Jekyll LibDoc
A Jekyll documentation theme with built-in search and playground
A Jekyll documentation theme with built-in search and playground. LibDoc is a Jekyll theme that was crafted to easily and quickly get properly designed documentation, especially for CSS and Javascript libraries. It comes with a built-in playground and a local search engine. -
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JsStore
A complete IndexedDB wrapper with SQL like syntax
Execute Database operation in browsers with JsStore. JsStore is an indexedDB wrapper. It makes IndexedDB super easy with its SQL-like APIs. Harness the power of JsStore to streamline database operations in your web applications. With its SQL-like API, JsStore simplifies IndexedDB interactions, enabling developers to easily query, filter, and manipulate data with familiar syntax and efficiency. -
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Juice
Juice inlines CSS stylesheets into your HTML source
Given HTML, juice will inline your CSS properties into the style attribute. Juice has a number of functions based on whether you want to process a file, HTML string, or a cheerio document, and whether you want the juice to automatically get remote stylesheets, scripts, and image dataURIs to inline. To inline HTML without getting remote resources, using default options. Juice is exposed as a standard module, and from CLI with a smaller set of options. -
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Just the Docs
A modern, high customizable, responsive Jekyll theme for documention
Just the Docs gives your documentation a jumpstart with a responsive Jekyll theme that is easily customizable and hosted on GitHub Pages. Just the Docs is built for Jekyll, a static site generator. View the Jekyll quick start guide for more information. Just the Docs requires no special plugins and can run on GitHub Pages’ standard Jekyll compiler. The Jekyll SEO Tag plugin is included by default (no need to run any special installation) to inject SEO and open graph metadata on docs pages. Your theme is set up just like a normal Jekyll site! To test your theme, run bundle exec jekyll serve. Add pages, documents, data, etc. like normal to test your theme's contents. As you make modifications to your theme and to your content, your site will regenerate and you should see the changes in the browser after a refresh, just like normal. -
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Koa-socket-2
Socket.IO for Koa
Koa-socket-2 uses socket.io v3. It is recommended that you connect to a koa-socket-2 server with a socket.io v3 client. Koa-socket-2 is only compatible with the Koa v2 style of middleware (where context is passed as a parameter). This project helps you start a SocketIO server using Koa and NodeJS. However, Google's Go language -- or GoLang -- allows you to write code that compiles down to binary. It can be a very good way to take your SocketIO server to the next level by running faster and requiring less overhead than runtime environments like NodeJS. -
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LaTeX.CSS
LaTeX.css is a library that makes your website look like a LaTeX doc
This almost class-less CSS library turns your HTML document into a website that looks like a LATEX document. Write semantic HTML, and you are good to go. The source code can be found on GitHub. LaTeX.css is a minimal, almost class-less CSS library that makes any website look like a LaTeX document. Add any optional classes to elements with special styles (author subtitle, abstract, lemmas, theorems, etc.). The labels of theorems, definitions, lemmas and proofs can be changed to other supported languages by including the snippet provided in addition to the main CSS file. Sidenotes can be used as an alternative to footnotes, where the user does not have to jump to the bottom of the page to read it. On mobile, click the superscript to reveal the note. Add a class of left to the span with the sidenote class to make the note appear on the left side of the page on instead of right. -
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LandPPT
An LLM-based presentation generation platform
LandPPT is an open-source AI platform that automatically generates professional presentation slides using large language models. The system allows users to create complete PowerPoint presentations simply by entering a topic or uploading source documents such as PDFs, Word files, or Markdown notes. Using natural language processing and structured content generation, the platform produces presentation outlines and converts them into fully formatted slide decks. The application integrates multiple AI models from providers such as OpenAI, Anthropic, Google, and locally hosted models to generate text, images, and structured presentation layouts. It also includes template systems and style options that allow presentations to be customized for different industries, visual themes, or storytelling formats. -
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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Librefox
Firefox with privacy enhancements
This project aims at enforcing the privacy and security of Firefox without forking the project. Librefox uses more than 500 privacy/security/performance settings, patches, Librefox-Addons (optional) and a cleaned bundle of Firefox (updater, crashreporter and Firefox's integrated addons that don't respect privacy are removed). Updated browser: because this project is not a fork, it is kept updated with the latest Firefox version. Limit internet access for extensions (firewall-test-feature). IJWY (I Just Want You To Shut Up): embedded server links and other calling home functions are removed (zero unauthorized connection by default). Settings protection: important settings are enforced/locked within mozilla.cfg and policies.json, those settings cannot be changed by addons/updates/Firefox or unwanted/accidental manipulation; To change those settings you can easily do it by editing mozilla.cfg and policies.json. -
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LinkFree
Connect to your audience with a single link
Showcase the content you create and your projects in one place. Make it easier for people to find, follow and subscribe. It is not just linked. Take a look at the Features you can add to customize your LinkFree Profile. Let people easily discover you and your links to your social accounts and content. Find out how many times your Profile has been viewed and your links clicked. Make your Profile discoverable with tags that describe you. Search Profiles not just by name but also by tags. This is a great way to connect with people and grow your network. Make it easier to share your Profile when you meet people with your unique QR code. Let people discover all your great content in one place by adding links to your different socials, website, blog and more. View details of your LinkFree profile, with views and URL clicks. Demonstrate the highlights of your career by adding Milestones to your Profile. -
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Listen 1
One for all free music in china (chrome extension)
Listen 1 can search and play songs from Netease Cloud Music, Xiami, QQ Music, Kugou Music, Kuwo Music, Bilibili, Migu Music website, making your music library more comprehensive. It also supports the playlist function, you can easily play, collect and create your own playlist. Download the Chrome plugin version zip package and unzip it. Open the Chrome extension page and check "Developer Mode" in the upper right corner. Select "Load unpacked extension..." and select the folder you just unpacked. Download the Windows zip file and choose the 32-bit or 64-bit version according to the system. The original web player, using Python to develop a web server. Can run directly on the server, or use the packaged Windows and Mac versions to run the web server locally. Windows, Mac, Linux desktop. Using Electron framework, based on Listen 1 Chrome plug-in version JS library development. -
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Logger for Redux
Logger for Redux
Logger for Redux. Now maintained by LogRocket! LogRocket is a production Redux logging tool that lets you replay problems as if they happened in your own browser. Instead of guessing why errors happen or asking users for screenshots and log dumps, LogRocket lets you replay Redux actions + state, network requests, console logs, and see a video of what the user saw. Transform action before print. Eg. convert an Immutable object to plain JSON. Transform state before print. Eg. convert an Immutable object to plain JSON. -
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L’Atelier
L'atelier, a project management tool
A project management tool. -
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MCP Server Playwright
MCP server for browser automation using Playwright
An MCP (Model Context Protocol) server that leverages Playwright to provide browser automation capabilities, enabling large language models (LLMs) to interact with web pages, take screenshots, and execute JavaScript within a real browser environment. -
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MCP YouTube
A Model-Context Protocol Server for YouTube
The YouTube MCP Server uses yt-dlp to download subtitles from YouTube videos and connects to claude.ai via the Model Context Protocol. It enables AI assistants to summarize YouTube videos by accessing their subtitles. -
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MJML 4
The only framework that makes responsive-email easy
MJML is a markup language created by Mailjet and designed to reduce the pain of coding a responsive email. Its semantic syntax makes the language easy and straightforward while its rich standard components library shortens your development time and lightens your email codebase. MJML’s open-source engine takes care of translating the MJML you wrote into responsive HTML. -
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MapSCII
Braille & ASCII world map renderer for your console
A node.js based Vector Tile to Braille and ASCII renderer for xterm-compatible terminals. If you're on Windows, use the open source telnet client PuTTY to connect. Use your mouse to drag and zoom in and out! Discover points of interest around any given location. Highly customizable layer styling with Mapbox Styles support. Connect to any public or private vector tile server. Or just use the supplied and optimized OSM2VectorTiles based one. Work offline and discover local VectorTile/MBTiles. Compatible with most Linux and OSX terminals. Highly optimized algorithms for a smooth experience. 100% pure JavaScript! Arrows up, down, left, right to scroll around. Press a or z to zoom in and out. Press c to switch to block character mode, and press q to quit. If your terminal supports mouse events you can drag the map and use your scroll wheel to zoom in and out. -
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Marinara
Pomodoro® time management assistant for Chrome
Marinara is a time management assistant for Chrome that follows the Pomodoro Technique. Pomodoro® and The Pomodoro Technique® are trademarks of Francesco Cirillo. Marinara is not affiliated or associated with or endorsed by Pomodoro®, The Pomodoro Technique®, or Francesco Cirillo. Configurable timer durations. Desktop & tab notifications. Audio notifications with over 20 sounds. Ticking timer sounds. Scheduled automatic timers. Open-source software. Currently, Marinara is configured for developers working and packaging releases on Mac OS. Support for Linux or Windows is welcome. Marinara uses the system ruby and makes tools to build releases. This will produce a packaged extension ready for uploading to the Chrome Web Store in the root directory of the project. -
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Mark Mind
Mind map and outliner editor for Windows, Mac, Linux, Android and iOS
Mark Mind is a next-generation mind map editor. A mind map and outline tool based on electron vue. -
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Masonry
A cascading grid layout plugin
Masonry is a JavaScript grid layout library. It works by placing elements in optimal position based on available vertical space, sort of like a mason fitting stones in a wall. You’ve probably seen it in use all over the Internet. All sizing and styling of items is handled by your own CSS. tem sizes can be set with percentages for responsive layouts. With the masonry layout mode, set percentage-width columnWidth with element sizing. Set percentPosition: true so item positions are likewise set with percentages to reduce adjustment transitions on window resize. Unloaded images can throw off Masonry layouts and cause item elements to overlap. imagesLoaded resolves this issue. imagesLoaded is a separate script you can download at imagesloaded.desandro.com. Or, initialize Masonry after all images have been loaded. -
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MediaElement.js
A dependable HTML media framework
Boost your player with Chromecast, Google Analytics and more. MediaElement.js is a blazingly fast and amazingly powerful HTML5 audio and video library that creates a unified feel for media files (MP4, MP3, FLV), streaming content (HLS, M(PEG)-DASH, RTMP), and embeddable players like YouTube, Vimeo, Twitch, DailyMotion, Facebook, and SoundCloud. MediaElement.js is a set of custom Flash plugins that mimic the HTML5 MediaElement API for browsers that don't support HTML5 or don't support the media codecs you're using. Instead of using Flash as a fallback, Flash is used to make the browser seem HTML5 compliant and enable codecs like H.264 (via Flash) on all browsers. In general, MediaElement.js supports IE11+, MS Edge, Chrome, Firefox, Safari, iOS 8+ and Android 4.0+. It is strongly recommended to read the entire documentation and check the demo folder to get the most out of this package. -
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Metalsmith
An extremely simple, pluggable static site generator for Node.js
An extremely simple, pluggable static site generator for NodeJS. Metalsmith works with all the tools and data formats you already know and use: NodeJS, npm, markdown, json, yaml and the templating language of your choice. Metalsmith translates a directory tree to plain Javascript objects that you can manipulate effortlessly with your selection of plugins. You shouldn't have to bend your project needs to a specific framework or tool. Metalsmith gives you full control of how you want to conceptualize, structure, and build your project. Use Metalsmith to generate anything from a static site to a scaffolder, backup, command line, or deploy tool. Configuration over code or code over configuration: Metalsmith supports both. -
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Milligram
A minimalist CSS framework
Milligram provides a minimal setup of styles for a fast and clean starting point. Just it! Only 2kb gzipped! It's not about a UI framework. Specially designed for better performance and higher productivity with fewer properties to reset resulting in cleaner code. Hope you enjoy it! There are some ways to get started. First, see all download options available below, then choose the most suitable option for your need. Now you should add the main file of the Milligram and the CSS Reset in the header of your project. Just that! The Button, an essential part of any user experience. Buttons come in three basic styles in Milligram: The button element has flat color by default, whereas .button-outline has a simple outline around, and .button-clear is entirely clear. The List is a very versatile and common way to display items. Milligram has three types of lists. -
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Moment.js
Parse, validate, manipulate, and display dates in javascript
Moment is a JavaScript date and time library that simplifies parsing, formatting, arithmetic, and humanizing of dates. It supports many formats in input and output, internationalization (i18n), locale-based month/day names, relative time (for example, “3 days ago”), and chaining of operations (adding, subtracting, diffing). Developers often use it for calendar displays, scheduling, and manipulating times across time zones or daylight saving transitions. While it makes working with date strings convenient, moment maintains internal mutability, which has trade-offs with safety and chainability. Over time, newer alternatives with immutable and modular designs have emerged, but moment remains widely known and integrated in many legacy projects. Its comprehensive feature set and ease of use made it a standard for date-time handling in JavaScript for many years.
