web
React hook that persists data in localStorage.
fuite is a CLI tool for finding memory leaks in web apps.
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A faithful recreation of the classic Pokemon Red/Blue games built with React and TypeScript. This project aims to recreate the original Pokemon experience in the browser, maintaining the authentic feel while leveraging modern web technologies.
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A Tool to Redirect News, Search, Widgets, Weather and More to Your Default Browser.
This tool filters and passes the command line arguments of Microsoft Edge processes into your default browser instead of hooking into the microsoft-edge: handler, this should provide resiliency against future changes. Additionally, an Image File Execution Options mode is available to operate similarly to the Old EdgeDeflector. Additional modes are planned for future versions.
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The Rspack-based Build Tool. Speed up your webpack application.
Rsbuild is an Rspack-based build tool for the web. Rsbuild is an enhanced Rspack CLI, which is more user-friendly and out-of-the-box. Rsbuild is the Rspack team's exploration and implementation of best practices for web building. Rsbuild is the best solution for migrating from Webpack to Rspack, reducing configuration by 90% and getting 10x build speed.
Build excellent documentation site with less effort
Fumadocs is a beautiful & robust documentation framework with a complete toolchain. Designed for Flexibility, Performance and Next.js.
Email parser for browser and serverless environments.
postal-mime is an email parsing library that runs in browser environments (including Web Workers) and serverless functions (like Cloudflare Email Workers). It takes in a raw email message (RFC822 format) and outputs a structured object containing headers, recipients, attachments, and more.
Web path scanner. An advanced web path brute-forcer.
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SRCL is an open-source React component and style repository that helps you build web applications, desktop applications, and static websites with terminal aesthetics. Its modular, easy-to-use components emphasize precise monospace character spacing and line heights, enabling you to quickly copy and paste implementations while maintaining a clean, efficient codebase.
⚡ Stream browser logs to terminal, zero setup, perfect for Ai Agents.
browser-echo makes it easy for you to read client-side logs directly in your coding agent during development.
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Daux.io is a documentation generator that uses a simple folder structure and Markdown files to create custom documentation on the fly. It helps you create great looking documentation in a developer friendly way.
A faster way to build and share data apps. Streamlit turns data scripts into shareable web apps in minutes. All in pure Python. No front‑end experience required.
Streamlit lets you transform Python scripts into interactive web apps in minutes, instead of weeks. Build dashboards, generate reports, or create chat apps. Once you’ve created an app, you can use our Community Cloud platform to deploy, manage, and share your app.
🕵️♂️ All-in-one OSINT tool for analysing any website. Comprehensive, on-demand open source intelligence for any website.
Get an insight into the inner-workings of a given website: uncover potential attack vectors, analyse server architecture, view security configurations, and learn what technologies a site is using.
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Fully styled and customizable components for Nuxt.
Build reliable crawlers. Fast.
A web scraping and browser automation library for Node.js to build reliable crawlers. In JavaScript and TypeScript. Extract data for AI, LLMs, RAG, or GPTs. Download HTML, PDF, JPG, PNG, and other files from websites. Works with Puppeteer, Playwright, Cheerio, JSDOM, and raw HTTP. Both headful and headless mode. With proxy rotation.
🚀 😍 The internationalization (i18n) library for Angular
Transloco allows you to define translations for your content in different languages and switch between them easily in runtime. It exposes a rich API to manage translations efficiently and cleanly. It provides multiple plugins that will improve your development experience. Here is a small taste of the features it offers:
The UnifiedToolchain for the Web.
dev, build, test, lint, format, monorepo caching & more in a single dependency, built for scale, speed, and sanity.
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jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers. With a combination of versatility and extensibility, jQuery has changed the way that millions of people write JavaScript.
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A chart grammar you don't have to outgrow.
A typed, tree-shakable chart grammar for SVG and Canvas. Compose marks, views, scales, transforms, interactions, and motion with compact primitives or D3-compatible inputs.
Page speed monitoring. Web performance library for measuring all performance vitals metrics.
Perfume is a tiny, web performance monitoring library that reports field data back to your favorite analytics tool.
Page Speed is a feature, and to deliver it we need to understand the many factors and fundamental limitations that are at play. If we can measure it, we can improve it.
sitespeed.io is an open-source tool for comprehensive web performance analysis, enabling you to test, monitor, and optimize your website’s speed using real browsers in various environments.
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The Open Source next-generation Web Editor based on the rendering engine of Firefox
Deliver web apps with confidence 🚀 .
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages.
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The official, opinionated, batteries-included toolset for efficient Redux development.
The Redux Toolkit package is intended to be the standard way to write Redux logic.
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The Superset of WASI.
WASIX is the long term stabilization and support of the existing WASI ABI plus additional non-invasive syscall extensions that complete the missing gaps sufficiently enough to enable real, practical and useful applications to be compiled and used now. It aims to speed up the ecosystem around the WASI so that the Wasm’ification of code bases around the world can really start today!
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No more insecure software. Make sure your software delivery organization has the capabilities required to deliver secure products.
The OWASP Product Security Capability Framework (PSCF) is a comprehensive guide designed to frame and enhance the security of software products. By leveraging a structured approach to identify, implement, and manage security capabilities, the PSCF aims to improve product security and ensure compliance with regulatory and industry standards.
The WebMCP API enables web applications to provide JavaScript-based tools to AI agents.
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- Chrome’s WebMCP makes AI agents stop pretending @ Reading.sh's Medium.
- #127 - News Février 2026, du WebMCP, des agents spammeurs et du Markdown @ Double Slash :fr:.
- #1037: WebMCP is here (and you should care) @ Syntax.
- WebMCP: A Practical Guide to Agent-Ready Websites @ Freshman.
- Why WebMCP matters @ Yoav's blog thing.
- The next steps on the Web and WebMCP @ Unlocking The Agentic Web Economy.
Open Source Video Player.
open source media player framework for Web and React. Modern, modular, and composable media player framework for Web and React.
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Modern React Component Library.
Build beautifulpiece by piece.
A dark-mode React component library. 19 production-ready components built with TypeScript, Tailwind CSS, and Framer Motion.
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Open-source Astro website template with sleek, customizable TailwindCSS components.
ScrewFast is an open-source website template built with Astro, Tailwind CSS, and Preline UI. You get a landing page, blog, product pages, and a full documentation site in one repo, so you can launch a complete web presence by editing content and props instead of building pages from scratch. Unlike single-purpose landing or blog themes, it ships with SEO metadata, i18n, security headers, and CI already wired up.
Vite & Vue Powered Static Site Generator. Markdown to Beautiful Docs in Minutes.
VitePress is a Vue-powered static site generator and a spiritual successor to VuePress, built on top of Vite.
Playwright enables reliable end-to-end testing for modern web apps.
Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API. Playwright is built to enable cross-browser web automation that is ever-green, capable, reliable and fast.
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The Web Without JavaScript. A programming language that compiles to WebAssembly, built for the next era of web development.
Nectar compiles to WebAssembly. One language, one binary, zero dependencies. Your entire app — logic, state, rendering — runs in WASM. JavaScript is reduced to a 10 KB syscall layer.
nginx ("engine x") is an HTTP web server, reverse proxy, content cache, load balancer, TCP/UDP proxy server, and mail proxy server. Originally written by Igor Sysoev and distributed under the 2-clause BSD License.
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Terminal apps that run anywhere - even the browser!
Build terminal apps that run in the browser (and the terminal) with React. The Gridland website is built with Gridland.
Gridland is built on the OpenTUI rendering engine.
A superset of PHP with extended syntax and runtime capabilities.
PXP (PXP: Extended Preprocessor) is a collection of tools and libraries that aim to make working with the PHP programming language more enjoyable and productive.
A suite of high-performance tools for PHP developers – includes a code formatter, static analyser, language server and superset language.
An absurdly small jQuery alternative for modern browsers.
Cash is an absurdly small jQuery alternative for modern browsers (IE11+) that provides jQuery-style syntax for manipulating the DOM. Utilizing modern browser features to minimize the codebase, developers can use the familiar chainable methods at a fraction of the file size. 100% feature parity with jQuery isn't a goal, but Cash comes helpfully close, covering most day to day use cases.
✅ ESLint plugin to enforce the JavaScript Baseline.
Default to the Web Platform Baseline, the cross‑browser compatibility standard. Ship code that works for everyone.
The current sky at your approximate location, rendered as a CSS gradient.
Swift, in the browser.
Run declarative Swift applications natively in the browser with WebAssembly.
The all-in-one monitoring tool for your entire website.
Downtime happens, certificates expire and links break. Ensure your website is blazing fast, error free and properly indexed without the hassle of multiple tools.
Build the 2D and 3D Web Without Coding. Your visual workspace for React / Three Fiber.
Triplex is your visual workspace for building React / Three Fiber components. Build 2D and 3D components without coding using its visual and input controls. Jump down to code when you need to.
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3D HTML5 & WebGL Game Engine. JavaScript game engine built on WebGL, WebGPU, WebXR and glTF
PlayCanvas is the world’s easiest to use WebGL Game Engine. It’s free, it’s open source and it’s backed by amazing developer tools.
<html> as a Response.
mono-jsx is a JSX runtime that renders <html> element to Response object in JavaScript runtimes like Node.js, Deno, Bun, Cloudflare Workers, etc.
Universal Web App Server.
NGINX Unit is a lightweight and versatile application runtime that provides the essential components for your web application as a single open-source server: running application code (including WebAssembly), serving static assets, handling TLS and request routing.
A self-hosted API that takes a URL and returns a file with browser screenshots. You run the API on your machine, you send it a URL, and you get back the website data as a file plus screenshots of the site. Simple as.
Reactive Extensions Library for JavaScript.
RxJS is a library for composing asynchronous and event-based programs by using observable sequences. It provides one core type, the Observable, satellite types (Observer, Schedulers, Subjects) and operators inspired by Array methods (map, filter, reduce, every, etc) to allow handling asynchronous events as collections.
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Developer Tools to power-up Redux development workflow or any other architecture which handles the state change (see integrations).
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WebOSINT is a Python script to gather (passive) domain intelligence.
Front-end starter kit combined with the power of SCSS & Compass.
Pondasee is a little front-end web developer framework to help designer or developer.
Next Generation Server Toolkit Create web servers with everything you need and deploy them wherever you prefer.
Nitro extends your Vite app with a production-ready server, designed to run anywhere. Add server routes, deploy across multiple platforms, and enjoy a zero-config experience.
The realtime client-side database.
Instant is a client-side database that makes it easy to build real-time and collaborative apps like Notion or Figma.
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Simple, blog-aware, static sites. Transform your plain text into static websites and blogs.
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Static Site Generator for Ruby on Rails. Build with Rails. Deploy static sites.
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Diagram Visualization Tools for Your Web Applications. A diagramming framework for the web
Eclipse Sprotty is an open source project enabling the creation of powerful diagramming tools and graphical visualizations. Fully customizable · Server and client-side diagramming · Easy integration · Powerful timesaver.
3,591 Terms and Concepts for Web Professionals.
The Web Development Glossary is the largest of its kind. With more than 3,000 terms and explanations (“3K”), it is the book to try and extend your web development and web platform knowledge.
The glossary covers key terms and concepts of the Web, beginning with HTML, CSS, JavaScript, accessibility, security, performance, code quality and testing, internationalization, localization, frameworks and editors and tooling.