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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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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Go From AI Idea to AI App FastAccess Gemini 3 and 200+ models. Build chatbots, agents, or custom models with built-in monitoring and scaling.
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Windows 95 UI Kit
Windows 95 UI Kit made with Bootstrap 4 components
30+ authentic Windows 95 components, Full Documentation, Fully Responsive, 100% Valid W3C HTML Files. It's Free. Windows 95 UI Kit is a free User Interface Kit featuring authentic buttons, cards (windows), tabs, navigation tabs, typography and many more. Use this kit to create awesome retro interfaces. Just run npm install to set up all the required dependencies. The Windows 95 Elements were molded with Bootstrap 4 Components and classes to offer an easy way and modern way of working with colors and sizes. This is an open source project so if you have an idea or would like to perfect the product, feel free to create a PR and we will surely take a look at it. -
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Wink-NLP
Developer friendly Natural Language Processing
Wink-NLP is a lightweight and fast natural language processing library for JavaScript, optimized for browser and Node.js environments. -
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WordPress Playground
Run WordPress in the browser via WebAssembly PHP
WordPress Playground is an experimental platform that allows users to run a fully functional WordPress environment entirely inside a web browser using WebAssembly, eliminating the need for a traditional PHP server or database setup. It achieves this by compiling PHP and other required components into WebAssembly, effectively creating a self-contained virtual environment that runs locally within the browser. This enables instant access to WordPress for learning, testing, and development without installation or hosting, significantly lowering the barrier to entry for new users and developers. The platform acts as a sandbox where users can experiment with themes, plugins, and configurations without affecting any live websites, making it ideal for prototyping and quality assurance workflows. It also supports exporting and importing full site states, allowing users to persist their work beyond a single session or transfer it to a production environment. -
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Yjs
Shared data types for building collaborative software
Yjs is a high-performance, open-source CRDT (Conflict-free Replicated Data Type) implementation for building collaborative, real-time applications. It enables multiple users to edit shared data structures—such as text documents, arrays, maps, and XML trees—synchronously and offline. Yjs is network-agnostic and works with WebRTC, WebSocket, or any other transport layer, making it ideal for collaborative editors, whiteboards, and design tools. Its compact updates and powerful reconciliation system make it one of the most efficient and developer-friendly CRDT libraries available. -
Forever Free Full-Stack Observability | Grafana CloudBuilt on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.
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Zepto.js
JavaScript library for modern browsers with a jQuery compatible API
Zepto is a minimalist JavaScript library for modern browsers with a largely jQuery-compatible API. If you use jQuery, you already know how to use Zepto. While 100% jQuery coverage is not a design goal, the APIs provided match their jQuery counterparts. The goal is to have a ~5-10k modular library that downloads and executes fast, with a familiar and versatile API, so you can concentrate on getting stuff done. Zepto is open source software and is released under the developer and business-friendly MIT license. Note that some optional features of Zepto specifically target mobile browsers; as the original project goal was to specifically provide a leaner alternative to jQuery for the mobile web. Zepto is a good choice for browser extensions (for Safari, Chrome and Firefox) and to develop HTML-based views within native app frameworks, such as PhoneGap. In short, Zepto is expected to work in every modern browser and browser-like environment. -
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Zip.js
JavaScript library to zip and unzip files
Zip.js is a JavaScript library for creating, reading, and editing ZIP files directly in the browser or in Node.js environments, supporting various compression methods and encryption. -
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annyang!
Speech recognition for your site
annyang is a tiny javascript library that lets your visitors control your site with voice commands. annyang supports multiple languages, has no dependencies, weighs just 2kb and is free to use. annyang understands commands with named variables, splats, and optional words. Use named variables for one word arguments in your command. Use splats to capture multi-word text at the end of your command (greedy). Use optional words or phrases to define a part of the command as optional. annyang plays nicely with all browsers, progressively enhancing browsers that support SpeechRecognition, while leaving users with older browsers unaffected. Grab the latest version of annyang.min.js, drop it in your html, and start adding commands. You can easily add a GUI for the user to interact with Speech Recognition using Speech KITT. Speech KITT is fully customizable and comes with many different themes, and instructions on how to create your own designs. -
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ast-hook-forjs-re
AST-based JavaScript reverse engineering and variable tracing toolkit
ast-hook-for-js-RE is an open source JavaScript reverse engineering toolkit designed to help analysts locate and understand client-side encryption logic used by web applications. It works by intercepting browser traffic through a local proxy server and modifying JavaScript code before it executes in the browser. Using Abstract Syntax Tree (AST) transformations, it injects hook functions into the code to monitor variable assignments and other runtime changes during execution. This allows ast-hook-for-js-RE to capture variable values in memory and store them in a searchable database, effectively enabling variable-level monitoring of program execution. When a user encounters encrypted parameters in network requests, the captured variable data can be searched to determine where those values originated in the code. Once the relevant variable and code location are identified, analysts can trace backward to extract or reproduce the encryption logic used by the site. -
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axe-core
Accessibility engine for automated Web UI testing
Axe is an accessibility testing engine for websites and other HTML-based user interfaces. It's fast, secure, lightweight, and was built to seamlessly integrate with any existing test environment so you can automate accessibility testing alongside your regular functional testing. Axe-core has different types of rules, for WCAG 2.0 and 2.1 on level A and AA, as well as a number of best practices that help you identify common accessibility practices like ensuring every page has an h1 heading, and to help you avoid "gotchas" in ARIA like where an ARIA attribute you used will get ignored. With axe-core, you can find on average 57% of WCAG issues automatically. Additionally, axe-core will return elements as "incomplete" where axe-core could not be certain, and manual review is needed. -
AI-powered service management for IT and enterprise teamsGive your IT, operations, and business teams the ability to deliver exceptional services—without the complexity. Maximize operational efficiency with refreshingly simple, AI-powered Freshservice.
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body-parser
Node.js body parsing middleware
Node.js body parsing middleware. Parse incoming request bodies in a middleware before your handlers, available under the req.body property. As req.body's shape is based on user-controlled input, all properties and values in this object are untrusted and should be validated before trusting. For example, req.body.foo.toString() may fail in multiple ways, for example the foo property may not be there or may not be a string, and toString may not be a function and instead a string or other user input. The bodyParser object exposes various factories to create middlewares. All middlewares will populate the req.body property with the parsed body when the Content-Type request header matches the type option, or an empty object ({}) if there was no body to parse, the Content-Type was not matched, or an error occurred. -
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bxSlider
Responsive jQuery content slider
The fully-loaded, responsive jQuery content slider. 4.2.0 Introduces a streamlined build process using gulp. Along with this new build process the projects folder structure has been changed. You will find a dist folder with all assets ready to use, including both minified and unminified versions of the javascript. These assets should be ready to go. In src you will find the uncompiled assets, including a new less version of the css for bxslider. This is an important step for bxslider. It will help speed development up and keep work clean. It also paves the way for a big revamp we have planned in the future. -
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cabal-cli
Terminal client for Cabal, the p2p chat platform
cabal-cli is a terminal-based client for Cabal, a peer-to-peer chat platform that operates without centralized servers. It allows users to create and join decentralized chat channels, ensuring privacy and resilience against censorship. The CLI interface provides a lightweight and efficient means of communication, particularly suited for developers and tech-savvy users. -
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camaro
camaro is an utility to transform XML to JSON, using Node.js
camaro is a utility to transform XML to JSON, using Node.js bindings to a native XML parser pugixml - one of the fastest XML parsers around. -
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chrome-cdp
Give your AI agent access to your live Chrome session
chrome-cdp-skill is a specialized integration that enables AI agents to control and interact with web browsers through the Chrome DevTools Protocol (CDP). It allows agents to perform tasks such as navigating pages, extracting data, interacting with elements, and executing scripts in a browser environment. The project is designed to extend the capabilities of AI systems beyond static knowledge by giving them real-time access to web content and interactive interfaces. Its architecture likely abstracts CDP commands into higher-level operations that are easier for agents to use. This makes it particularly useful for automation tasks such as web scraping, testing, and dynamic data retrieval. The system emphasizes precision and control, allowing agents to operate browsers programmatically with fine-grained actions. Overall, chrome-cdp-skill acts as a bridge between AI reasoning and real-world web interaction. -
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code notes
A simple code snippet & gist manager for developers
A simple code snippet manager for developers built with Electron & Vue.js. The aim of this project is to make us more efficient by offering a pretty cool tool : a kind of notepad for our code. Go the download section of our website to download Code Notes on your OS. This project was generated with vue-cli-plugin-electron-builder@f0c7709 using vue-cli. -
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compromise
Modest natural-language processing
Language is complicated and there's a gazillion words. Compromise is a javascript library that interprets and pre-parses text and makes some reasonable decisions so things are way easier. Compromise tries its best to parse text. it is small, quick, and often good-enough. It is not as smart as you'd think. Conjugate and negate verbs in any tense. Play between plural, singular and possessive forms. Interpret plain-text numbers. Handle implicit terms. Use it on the client-side or as an es-module. compromise is 180kb (minified). It's pretty fast. It can run on keypress. It works mainly by conjugating all forms of a basic word list. Decide how words get interpreted or make heavier changes with a compromise-plugin. Parse text without running POS-tagging. Pre-parse any match statements for faster lookups. It is not the most accurate, or clever nlp library, but found its niche as an easy, small library that can run everywhere. -
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core-js
Modular standard library for JavaScript
Modular standard library for JavaScript. Includes polyfills for ECMAScript up to 2021: promises, symbols, collections, iterators, typed arrays, many other features, ECMAScript proposals, some cross-platform WHATWG / W3C features and proposals like URL. You can load only required features or use it without global namespace pollution. The maintainers of core-js and the maintainers of thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. If you use core-js with the extension of native objects, recommended load all core-js modules at the top of the entry point of your application, otherwise, you can have conflicts. -
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cross-platform-terminal-characters
All the characters that work on most terminals
cross-platform-terminal-characters is a utility library that provides consistent, cross-platform terminal characters such as checkmarks, arrows, and box-drawing symbols for use in command-line interfaces. It ensures that terminal UI components look correct and legible across operating systems like Windows, macOS, and Linux, accounting for encoding and font inconsistencies. By automatically selecting fallback characters when necessary, it simplifies the process of designing beautiful, portable CLI tools. -
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css-loader
CSS Loader
The CSS-loader interprets @import and URL() like import/require() and will resolve them. Add the plugin to your webpack config. Run webpack via your preferred method. Allows to enable/disable handling the CSS functions URL and image-set. If set to false, CSS-loader will not parse any paths specified in URL or image-set. A function can also be passed to control this behavior dynamically based on the path to the asset. Starting with version 4.0.0, absolute paths are parsed based on the server root. Using local value requires you to specify :global classes. Using global value requires you to specify :local classes. Using pure value requires selectors must contain at least one local class or id. Styles can be locally scoped to avoid globally scoping styles. The syntax :local(.className) can be used to declare className in the local scope. The local identifiers are exported by the module. -
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cssnano
A modular minifier, built on top of the PostCSS ecosystem
cssnano is a modern, modular compression tool written on top of the PostCSS ecosystem, which allows us to use a lot of powerful features in order to compact CSS appropriately. Our preset system allow you to load cssnano in a different configuration depending on your needs; the default preset performs safe transforms, whereas the advanced preset performs more aggressive transforms that are safe only when your site meets the requirements; but regardless of the preset you choose, we handle more than whitespace transforms! Optimizations range from compressing colors & removing comments, to discarding overridden at-rules, normalizing unicode-range descriptors, even mangling gradient parameters for a smaller output value! In addition, where it's made sense for a transform, we've added Browserslist to provide different output depending on the browsers that you support. -
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darwin-skill
Autoresearch-inspired autonomous skill optimization for Claude Code
darwin-skill is an experimental framework designed to automatically improve AI agent “skills” through iterative evaluation and optimization loops inspired by machine learning training processes. Instead of treating prompts or skill definitions as static assets, the system applies a continuous improvement cycle that evaluates performance, proposes changes, tests outcomes, and either retains or reverts modifications. The framework introduces a scoring system across multiple dimensions, enabling quantitative assessment of skill quality and ensuring that only improvements are preserved over time. It incorporates a “ratchet mechanism” similar to version control workflows, guaranteeing that performance never degrades as iterations progress. The system also separates the agents responsible for editing and evaluating skills to avoid bias, which improves the reliability of optimization results. -
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dat.GUI
dat.gui is a lightweight controller library for JavaScript
A lightweight graphical user interface for changing variables in JavaScript. The easiest way to use dat.GUI in your code is by using the built source at build/dat.gui.min.js. These built JavaScript files bundle all the necessary dependencies to run dat.GUI. If you're using a server with a Content Security Policy in place that blocks 'unsafe-inline', you will have problems when dat.gui.js tries to inject style information. To get around this, load 'build/dat.gui.css' as an external style sheet. With the npm run build script you can build development and production version of scripts. And with the npm run dev script you can build development version of script and watch for changes. -
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decimal.js
An arbitrary-precision Decimal type for JavaScript
decimal.js is a JavaScript library that provides an arbitrary-precision decimal data type designed to overcome the limitations of native floating-point arithmetic in JavaScript. It allows developers to perform accurate calculations with numbers of virtually unlimited precision, making it especially useful for financial, scientific, and high-precision applications. Unlike standard JavaScript numbers, which can produce rounding errors due to binary representation, decimal.js ensures consistent and predictable results by operating on decimal values directly. The library defines a Decimal constructor that accepts numbers, strings, or existing Decimal instances, enabling flexible usage across different input types. It supports a wide range of mathematical operations, including arithmetic, logarithmic, trigonometric, and exponential functions, making it significantly more comprehensive than simpler numeric libraries. -
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deskapp
DeskApp Admin is a free to use Bootstrap 4 admin template
DeskApp Admin is a free-to-use Bootstrap 4 admin template. This template uses the default Bootstrap 4 styles along with a variety of powerful jQuery plugins and tools to create a powerful framework for creating admin panels or back-end dashboards. The theme uses several libraries for charts, calendars, text forms, date range, upload area, form autocomplete, range slider, progress bars, notifications, and much more. We would love to see how you use this awesome admin template. You can notify us about your site. Once the list will grow long enough we will write a post similar to this to showcase the best examples. -
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diskover-community
Open source file indexing & storage analytics powered by Elasticsearch
Diskover Community Edition is an open source file system indexing and storage analytics platform designed to help organizations understand and manage large volumes of file data. It crawls file systems and indexes metadata using Elasticsearch, enabling fast search, analysis, and organization of files stored across different storage systems. It allows administrators and users to explore file structures, monitor storage usage, and gain insights into how data is distributed across infrastructure. By indexing file metadata from sources such as local file systems, network shares like NFS and SMB, and cloud storage, the tool provides a centralized way to analyze heterogeneous storage environments. Diskover also helps identify outdated or unused files, duplicate data, and inefficient storage usage that can waste resources or increase operational costs. A Python-based indexing engine performs the scanning and indexing tasks.
