web
✅ ESLint plugin to enforce the JavaScript Baseline.
Default to the Web Platform Baseline, the cross‑browser compatibility standard. Ship code that works for everyone.
A command-line utility for taking automated screenshots of websites.
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HTML as Template Language.
EHTML transforms standard HTML into a powerful application layer. Write less JavaScript and let HTML handle templating, data loading, rendering, and interactions.
Nostalgist.js is a JavaScript library that allows you to run emulators of retro consoles like NES and Sega Genesis, within web browsers.
Barcode scanning for web apps.
STRICH is a JavaScript library for real-time, 1D/2D barcode scanning in the web browser.
Complete media toolkit.
Pure TypeScript media toolkit for reading, writing, and converting video and audio files, directly in the browser.
A JavaScript library for reading, writing, and converting video and audio files. Directly in the browser, and faster than anybunny else.
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Layrr is the visual editor for real code. Design visually, edit any stack, own everything. A browser coding agent interface for selecting elements and sending instructions directly to Claude Code.
Lightweight type coercion library.
Of Coerce! is a lightweight, near-zero overhead alternative to Zod and Valibot.
Unlike these libraries, Of Coerce! focuses on a single task: ensuring the data corresponds to the types.
It uses built-in JavaScript features to coerce whatever you pass to it, which makes it the fastest and the most lightweight solution (full library is 381B!).
Actor-based state management & orchestration for complex app logic. XState is a state management and orchestration solution for JavaScript and TypeScript apps.
It uses event-driven programming, state machines, statecharts, and the actor model to handle complex logic in predictable, robust, and visual ways. XState provides a powerful and flexible way to manage application and workflow state by allowing developers to model logic as actors and state machines. It integrates well with React, Vue, Svelte, and other frameworks and can be used in the frontend, backend, or wherever JavaScript runs.
Wirebrowser is a debugging, interception, and memory-inspection toolkit powered by the Chrome DevTools Protocol (CDP). It unifies network manipulation, API testing, automation scripting, and deep JavaScript memory inspection into one interface. With features like Breakpoint-Driven Heap Search and real-time Live Object Search, Wirebrowser provides researchers and engineers with precise, high-visibility tools for client-side analysis, reverse engineering, and complex application debugging.
CSS voxel engine for the DOM.
A CSS voxel engine. A 3D grid for the DOM. Renders HTML cuboids by stacking CSS grid layers and applying transforms.
Supports colors and textures, interactions and culling, plus shapes, areas and projections. All without </canvas>.
A modern data client for React & tRPC
Inspired by Relay and GraphQL, fate combines view composition, normalized caching, data masking, Async React features, and tRPC's type safety.
The open protocol for real-time sync to client applications.
HTTP-based durable streams for streaming data reliably to web browsers, mobile apps, and native clients with offset-based resumability.
Durable Streams provides a simple, production-proven protocol for creating and consuming ordered, replayable data streams with support for catch-up reads and live tailing.
Make images smaller using best-in-class codecs, right in the browser.
Squoosh is an image compression web app that reduces image sizes through numerous formats. Squoosh does not send your image to a server. All image compression processes locally.
True offline-first sync for modern apps—without vendor lock-in.
🔄 A powerful, type-safe sync engine for building real-time collaborative applications. Local-first, CRDT-based, with zero-config offline support.
Web Cache Vulnerability Scanner is a Go-based CLI tool for testing for web cache poisoning and web cache deception.
The scanner supports many different web cache poisoning and web cache deception techniques, includes a crawler to identify further URLs to test, and can adapt to a specific web cache for more efficient testing. It is highly customizable and can be easily integrated into existing CI/CD pipelines.
interactive, collaborative html elements with a single data attribute.
playhtml is an open-source library for designing communal web experiences by enhancing web elements with real-time, collaborative interactivity.
Why does the internet feel lonely when we increasingly spend much of our time on it? I think it's because most of the internet is a solitary experience, by design: personal algorithmic feeds, content-focused websites, no indicator of who else is here with us right now.
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trifold is a tool to serve static websites using a content delivery network (CDN).
This allows painless deployment of sites consisting entirely of static assets (HTML, CSS, JS, images) for pennies a month. It is the perfect companion to deploy sites built with static-site generators like Hugo, Zola, Quarto, or zensical.
A fast, framework-agnostic undo/redo core powered by Mutative JSON Patch.
A fast, framework-agnostic undo/redo library that stores only changes, not full snapshots.
Travels gives your users the power to undo and redo their actions—essential for text editors, drawing apps, form builders, and any interactive application. Unlike traditional undo systems that copy entire state objects for each change, Travels stores only the differences (JSON Patches), making it 10x faster and far more memory-efficient.
ssh-first fediverse blog. Blog directly from ssh!
stegodon is an SSH-first federated blogging platform. Users connect via SSH to create notes in a terminal interface. Notes federate to the Fediverse via ActivityPub and are available through RSS feeds and a web interface.
AI Browser Automation. Automate browser based workflows with AI.
Skyvern automates browser-based workflows using LLMs and computer vision. It provides a simple API endpoint to fully automate manual workflows on a large number of websites, replacing brittle or unreliable automation solutions.
The current sky at your approximate location, rendered as a CSS gradient.
A high-quality visual cross-platform gemini browser.
Kristall is a browser without support for css/js/wasm or graphical websites. It can display user-styled documents in several formats, including gemini, html, markdown, … provided by a server via gemini, gopher, http, finger, …
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fuite is a CLI tool for finding memory leaks in web apps.
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A modern static site generator by the creators of Material for MkDocsh
Zensical is a fresh take on what we envision a modern Open Source toolchain to build static sites should look like. Brought to you by the creators of Material for MkDocs – a tool trusted by more than 70,000 projects worldwide – we're building Zensical from first principles to achieve faster iteration, better authoring experience, and a modern architecture that scales with your needs.
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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 data visualization and analytics component, especially well-suited for large and/or streaming datasets.
A declarative, HTML‑based language that makes building web apps fun.
Marko is HTML re‑imagined as a language for building dynamic and reactive user interfaces.
Just about any valid HTML is valid Marko, but Marko extends the HTML language to allow building modern applications in a declarative way.
Visually explore, understand, and present your data.
By using easy-to-understand views, SandDance helps you find insights about your data, which in turn help you tell stories supported by data, build cases based on evidence, test hypotheses, dig deeper into surface explanations, support decisions for purchases, or relate data into a wider, real world context.
Fast, unopinionated, minimalist web framework for Node.js
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Pronounced "Alix".
This CSS file intends to warn developers about possible risks and mistakes that exist in HTML code. It can also be used to roughly evaluate a site's quality by simply including it as an external stylesheet.
CSS files are available in French, English, Spanish, Greek, Arabic, Portuguese, Russian, Chinese, Polish and Dutch — and leveled or full.
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Digital Library of Free & Borrowable Texts, Movies, Music & Wayback Machine.
Internet Archive is a non-profit library of millions of free texts, movies, software, music, websites, and more.
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Prism is a lightweight, extensible syntax highlighter, built with modern web standards in mind. It’s used in millions of websites, including some of those you visit daily.
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Firefox Reader View in your terminal! - CLI tool for Mozilla's Readability library.
readability-cli takes any HTML page and strips out unnecessary bloat by using Mozilla's Readability library. As a result, you get a web page which contains only the core content and nothing more. The resulting HTML is suitable for terminal browsers, text readers, and other uses.
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.
Easy to maintain open source documentation websites.
Build optimized websites quickly, focus on your content.
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The Web Access Layer for AI Agents.
Connect Your Agent to the Web. Powering the Internet of Agents with fast, secure and reliable web access APIs.
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gpu-io is a GPU-accelerated computing library for physics simulations and other mathematical calculations.
Catch Broken Links in Seconds.
⚡ Fast, async, stream-based link checker written in Rust. Finds broken URLs and mail addresses inside Markdown, HTML, reStructuredText, websites and more!
⚛️ Fast 3kB React alternative with the same modern API. Components & Virtual DOM.
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Static Site Generator for Ruby on Rails. Build with Rails. Deploy static sites.
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The Python stack to build web apps at light speed.
From dev environment to UI framework to deployment, Hyperflask integrates everything seamlessly to let you focus on what you are building.
Outil d'analyse de performance de votre site web.
Outil gratuit d'audit de performance web et d'analyse de qualité technique, conçu pour évaluer la vitesse de chargement et l'optimisation SEO d'un site.
Type-safe Routing for React and Solid applications
A powerful React router for client-side and full-stack react applications. Fully type-safe APIs, first-class search-params for managing state in the URL and seamless integration with the existing React ecosystem.
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A 2FA TUI for your shell.
andcli lets you work with 2FA tokens directly in your shell, using encrypted backups exported out of your favourite 2FA apps. All the data is held in memory only and will never leave your machine.
Ergonomic Framework for Humans. TypeScript with End-to-End Type Safety, type integrity, and exceptional developer experience. Supercharged by Bun.
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Advanced Open Source Website Builder.
Open source website builder and Webflow alternative. Webstudio is an advanced visual builder that connects to any headless CMS, supports all CSS properties, and can be hosted anywhere, including with us.
Webstudio is an Open Source Visual Development Platform for developers, designers, and cross-functional teams. You own the data, components, and infrastructure. You can use the hosted version or roll out your own.
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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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Develop full-stack web apps faster.
Wasp is a compiler-driven full-stack web framework; it takes configuration and source files with your unique logic, and it generates the complete source code your the web app. Think of a Rails-like framework for React, Node.js and Prisma. Build your app in a day and deploy it with a single CLI command.
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Block-based Rich Text Editor for React. Rich text, beautifully crafted with shadcn/ui and Tailwind.
A powerful rich text editor built for modern web applications — elegant, performant, and infinitely customizable. Built with React, TypeScript, and thoughtful design.
Your AI.Your Data. Zero Cloud. Offline ChatGPT alternative: open-source, on-device, and 100% private.
By connecting to Ollama local LLMs, NativeMind delivers the latest AI capabilities right inside your favourite browser — without sending a single byte to cloud servers.
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The PHP Framework For Web Artisans.
Laravel provides a complete ecosystem for web artisans. Our open source PHP framework, products, packages, and starter kits offer everything you need to build, deploy, and monitor web applications.
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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.
A "public suffix" is one under which Internet users can (or historically could) directly register names. Some examples of public suffixes are com, co.uk and pvt.k12.ma.us. The Public Suffix List is a list of all known public suffixes.
The Public Suffix List is an initiative of Mozilla, but is maintained as a community resource. It is available for use in any software, but was originally created to meet the needs of browser manufacturers.
A simple but powerful deobfuscator to remove common JavaScript obfuscation techniques.
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A simple way to publish articles, product updates and changelogs to your site.
Marble is a headless CMS designed specifically for managing blogs, changelogs, and articles. It provides a simple interface for creating and organizing content, along with a powerful API to fetch and display it on your website or app.
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