Open Source JavaScript Software - Page 37
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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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Build Agents and Models on One PlatformGemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
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Host LLMs in Production With On-Demand GPUsDeploy your model, get an endpoint, pay only for compute time. No GPU provisioning or infrastructure management required.
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emotion
CSS-in-JS library designed for high performance style composition
Emotion is a library designed for writing css styles with JavaScript. It provides powerful and predictable style composition in addition to a great developer experience with features such as source maps, labels, and testing utilities. Both string and object styles are supported. There are two primary methods of using Emotion. The first is framework agnostic and the second is for use with React. Similar to the style prop, but also has support for auto vendor-prefixing, nested selectors, and media queries. Allows developers to skip the styled API abstraction and style components and elements directly. The css prop also accepts a function that is called with your theme as an argument allowing developers easy access to common and customizable values. Reduces boilerplate when composing components and styled with emotion. Server side rendering with zero configuration. -
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ffmpeg.js
Port of FFmpeg with Emscripten
ffmpeg.js is a JavaScript port of the FFmpeg multimedia framework compiled with Emscripten, enabling video and audio processing directly within browsers or Node.js environments. It provides prebuilt modules optimized for web use, balancing performance and file size while supporting common encoding and decoding tasks. By running entirely in JavaScript through asm.js, it allows developers to manipulate media files without requiring native binaries or server-side processing. The library supports different builds tailored for formats like WebM and MP4, including worker-based versions for improved performance in web applications. It exposes a programmatic API that mirrors FFmpeg command-line behavior, allowing developers to pass arguments and handle input and output streams in memory. This makes it especially useful for browser-based editors, converters, and multimedia tools. Overall, ffmpeg.js brings powerful media processing capabilities to client-side environments with minimal setup. -
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flag-icons
A curated collection of all country flags in SVG
A curated collection of all country flags in SVG, plus the CSS for easier integration. For using the flags inline with text add the classes .fi and .fi-xx (where xx is the ISO 3166-1-alpha-2 code of a country) to an empty <span>. If you want to have a squared version flag then add the class fis as well. You could also apply this to any element, but in that case you'll have to use the fib instead of fi and you're set. This means that the flag is just going to appear in the middle of an element, so you will have to set manually the correct size of 4 by 3 ratio or if it's squared add also the flag-icon-squared class. To have only specific countries in the css file, remove the ones that you don't need from the flag-icons-list.less file and build it again. -
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fullPage.js
Create beautiful fullscreen scrolling websites fast and easy
fullPage.js is an easy-to-use library for creating beautiful, fullscreen scrolling websites/ onepage sites/ single page websites complete with all the features you need. With fullPage.js you can add landscape sliders and links to sections of your site, create smaller or bigger sections, use extensions and more! fullPage.js is compatible with all modern browsers and even some old ones like IE9 and Opera 12. It also provides touch support designed for mobile devices and touch screen computers. fullPage.js is fully supported by a great community, has good documentation and offers plenty of examples to get you started quickly. See these examples on the official website: http://alvarotrigo.com/fullPage/ -
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get-bin-path
Get the current package's binary path
Get the current package's binary path (using the package.json bin field). This is useful when testing a package's binary. Using get-bin-path (as opposed to hard-coding the path to the binary). Validates that the package.json bin field is correctly setup. Decouples the binary path from the tests, which allows moving the file without rewriting the tests. This package is an ES module and must be loaded using an import or import() statement, not require(). Returns the current package's binary absolute path. When no package.json or binary can be found, undefined is returned instead. -
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html-react-parser
HTML to React parser
HTML to React parser that works on both the server (Node.js) and the client (browser). The parser converts an HTML string to one or more React elements. Available as part of the Tidelift Subscription. For TypeScript projects, you may need to check that domNode is an instance of domhandler's Element. Make sure to render parsed adjacent elements under a parent element. -
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iCn3D
Web-based protein structure viewer and analysis tool
"I see in 3D" (iCn3D) Structure Viewer is not only a web-based 3D viewer, but also a structure analysis tool interactively or in the batch mode using NodeJS scripts based on the npm package icn3d. iCn3D synchronizes the display of 3D structure, 2D interaction, and 1D sequences and annotations. Users' custom displays can be saved in a short URL or a PNG image. The complete package of iCn3D including Three.js and jQuery is in the directory "dist" after you get the source code with the "Code" button. View a 3D structure in iCn3D, input a PDB ID, and click "Load". You can also click the "File" menu to "Open File" or input other IDs. You can open a browser in your Virtual Reality (VR) headset and view a 3D structure in iCn3D. Then click the button "Enter VR" at the bottom center of your browser to enter the VR view. You can select residues with the trigger button. -
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iFrame Resizer
Keep same and cross domain iFrames sized to their content
Size cross domain iFrames to content with support for window/content resizing, and multiple iFrames. This library enables the automatic resizing of the height and width of both same and cross domain iFrames to fit their contained content. It provides a range of features to address the most common issues with using iFrames. Provides a range of page size calculation methods to support complex CSS layouts. Detects changes to the DOM that can cause the page to resize using MutationObserver. Detects events that can cause the page to resize (window resize, CSS animation and transition, orientation change and mouse events). Fixes in page links in iFrame and supports links between the iFrame and parent page. Works with ViewerJS to support PDF and ODF documents. The package contains two minified JavaScript files in the js folder. The first (iframeResizer.min.js) is for the page hosting the iFrames. -
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iScroll
Smooth scrolling for the web
iScroll is a high-performance JavaScript scroller built to bring smooth scrolling behavior to web interfaces across desktop, mobile, and smart TV environments. It was designed to be small, dependency-free, and optimized enough to work well on both modern and older devices. The library goes beyond basic scrolling by supporting zooming, panning, infinite scrolling, parallax effects, and carousel-style interactions. Developers can control scroll coordinates, customize easing behavior, and listen to detailed scrolling events during user interaction. The project includes several builds, such as the general version, a lighter mobile-focused version, a probe version for tracking scroll position, and a zoom-enabled version. The repository is archived and read-only, so it is best suited for legacy projects, reference use, or maintaining existing interfaces that already depend on iScroll. -
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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ieaseMusic
Music desktop app
Elegant NeteaseMusic desktop app, Rock with NeteaseMusic. Built by Electron, React, MobX, JSS. Modern UI design, high quality music(FLAC), track your listen to Last.fm, fix dead music link #3(QQ music, Xiami music, Kugou music, Kuwo music, MiGu music, Biadu music all in one). Share music to Facebook, Twitter, Google+, WeChat. WeChat scan to log in, and you can download music. It supports JSS Theme, and it is OSX friendly. ieaseMusic is cross platform, and has keyboard support. It also provides desktop notifications. -
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jsdoc-to-markdown
Generate markdown documentation from jsdoc-annotated javascript
Generates markdown API documentation from jsdoc annotated source code. Useful for injecting API docs into project README files. By default, dmd generates github-flavored markdown. Not all markdown parsers render gfm correctly. If your generated docs look incorrect on sites other than Github (e.g. npmjs.org) try enabling this option to disable Github-specific syntax. Two options to render parameter lists: 'list' or 'table' (default). Table format works well in most cases but switch to list if things begin to look crowded / squashed. By default, the output of each invocation of the main generation methods (render, getTemplateData etc) is stored in the cache (your system's temporary directory). Future jsdoc2md invocations with the same input options and source code will return the output immediately from cache, making the tool much faster/cheaper. If the input options or source code changes, fresh output will be generated. -
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koa-better-flash
Flash message middleware for Koa and Passport
Flash message middleware for Koa and Passport. -
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lavish-axi
HTML is the new markdown. Lavish is the new editor for HTML artifacts
Lavish AXI is a local-first editor for reviewing and refining HTML artifacts produced by AI agents. It opens generated HTML in a browser so users can inspect the actual interactive result instead of relying on screenshots or long text descriptions. Users can pinpoint elements, select text ranges, annotate content, and send feedback directly back to the agent. Rendered Mermaid diagrams can also be edited as whiteboards. The tool is designed as an agent-native CLI with token-efficient output, long polling, and contextual disclosure. It can be used through an installable agent skill, run directly with npx, or integrated through session hooks and agent-plugin packaging. -
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lint-staged
Run linters on git staged files
Run linters against staged git files and don't let anything slip into your code base! Linting makes more sense when run before committing your code. By doing so you can ensure no errors go into the repository and enforce code style. But running a lint process on a whole project is slow, and linting results can be irrelevant. Ultimately you only want to lint files that will be committed. This project contains a script that will run arbitrary shell tasks with a list of staged files as an argument, filtered by a specified glob pattern. Linter commands work on a subset of all staged files, defined by a glob pattern. lint-staged uses micromatch for matching files. The concept of lint-staged is to run configured linter tasks (or other tasks) on files that are staged in git. lint-staged will always pass a list of all staged files to the task, and ignoring any files should be configured in the task itself. -
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melonJS
A fresh & lightweight javascript game engine
melonJS is an open-source HTML5 game engine that empowers developers and designers to focus on content. The framework provides a collection of composable entities and support for a number of third-party tools. Giving you a powerful combination that can be used wholesale or piecemeal. melonJS is a lightweight yet powerful HTML5 framework designed from the ground up to provide a true plugin-free 'write-once, run-everywhere' gaming platform. melonJS is an open-source project and supported by a community of enthusiasts. See our Gallery for a few examples of games powered by melonJS. melonJS integrates the popular Tiled map format, allowing designers easily create levels using the Tiled map editor, and to focus on the game features itself. A fresh and lightweight 2D sprite-based engine. Fast WebGL renderer for desktop and mobile devices with fallback to Canvas rendering. -
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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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minecraft protocol
Parse and serialize minecraft packets, plus authentication
Parse and serialize Minecraft packets, plus authentication and encryption. -
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minimatch
A glob matcher in javascript
minimatch is a lightweight JavaScript library that implements glob style pattern matching for file paths and strings. It is commonly used in Node.js tooling, build systems, and file walkers to determine whether paths match specified patterns. The library reproduces the behavior of Bash style glob expansion while adding Node specific handling for path separators. It is designed to be small, fast, and reliable, making it suitable for performance-sensitive workflows. Developers often use minimatch as a foundational dependency in larger tools such as package managers and bundlers. The project focuses on correctness in pattern parsing and cross-platform behavior. Overall, minimatch serves as a core utility for pattern-based file matching in the JavaScript ecosystem. -
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mslearn-tailspin-spacegame-web
Code used in Microsoft Learn modules to support Azure DevOps
The Tailspin Space Game Web project is a sample application created by Microsoft as part of its learning resources. It’s a web-based game application used in Microsoft Learn modules and documentation to demonstrate concepts such as Azure App Services, continuous integration and delivery (CI/CD) pipelines, and DevOps practices with GitHub Actions and Azure Pipelines. The project is intentionally lightweight and easy to deploy so learners can quickly experiment with cloud deployment, testing, monitoring, and scaling scenarios while focusing on modern DevOps workflows. -
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ndm
npm desktop manager
Add, remove, and update global and local packages with ease. Edit projects in place, snapshots, and projects history comfort. Launch npm commands and scripts, doesn't matter if you're on breakfast. Useful package information and live npm registry status. -
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next-firebase-auth
Simple Firebase authentication for all Next.js rendering strategies
Simple Firebase authentication for all Next.js rendering strategies. This package makes it simple to get the authenticated Firebase user and ID token during both client-side and server-side rendering (SSR). We treat the Firebase JS SDK as the source of truth for auth status. When the user signs in, we call an endpoint to generate a refresh token and store the user info, ID token, and refresh token in cookies. Future requests to SSR pages receive the user info and ID token from cookies, refreshing the ID token as needed. When the user logs out, we unset the cookies. This package will likely be helpful if you're using Firebase authentication and expect to use server-side rendering—especially if you need access to Firebase ID tokens on the server side. If your app only uses static pages or doesn't need the Firebase user for SSR, use the Firebase JS SDK directly to load the user on the client side. -
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node-oracledb
Oracle Database driver for Node.js maintained by Oracle Corp
The node-oracledb add-on for Node.js powers high-performance Oracle Database applications. Applications can be written in TypeScript, or directly in JavaScript. Use node-oracledb 5.4 to connect Node.js 14, or later, to Oracle Database. Older versions of node-oracledb may work with older versions of Node.js. Node-oracledb supports basic and advanced features of Oracle Database and Oracle Client. The node-oracledb module is open source and maintained by Oracle Corp. It is stable, well documented, and has a comprehensive test suite. Oracle gratefully acknowledges the contributions to node-oracledb that have been made by the community. Inbuilt Connection Pool with Queuing, Aliasing, Tagging, Draining, Heterogeneous and Homogeneous connections, Proxy connections and Liveness checking. Use of Oracle Network Service infrastructure, including encrypted network traffic and security features. -
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pdf-extractor
Node.js module for rendering pdf pages to images, svgs and HTML files
Pdf-extractor is a wrapper around pdf.js to generate images, svgs, html files, text files and json files from a pdf on node.js. A DOM Canvas is used to render and export the graphical layer of the pdf. Canvas exports *.png as a default but can be extended to export to other file types like .jpg. Pdf objects are converted to svg using the SVGGraphics parser of pdf.js. Pdf text is converted to HTML. This can be used as a (transparent) layer over the image to enable text selection. Pdf text is extracted to a text file for different usages (e.g. indexing the text). This library is in it's most basic form a node.js wrapper for pdf.js. It has default renderers to generate a default output, but is easily extended to incorporate custom logic or to generate different output. It uses a node.js DOM and the node domstub from pdf.js do make pdf parsing available on node.js without a browser. -
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pg-boss
Queueing jobs in Postgres from Node.js like a boss
pg-boss is a job queue manager for Node.js applications that leverages PostgreSQL to handle job scheduling, processing, and persistence. -
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react-imgpro
Image Processing Component for React
react-imgpro is an image-processing component for React. This component process an image with filters supplied as props and returns a base64 image. I was working on a project last month which involved a lot of image processing and I'd to rely on third party libraries. But before using them directly, I'd to learn different concepts in gl (shaders) and then try to implement them in React. The difficult part was not learning but it was the verbosity, boilerplate code and redundancy introduced by the libraries in the codebase. It was getting difficult to organize all the things. And React's component-based model was perfect for hiding all the implementation details in a component.