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Make images smaller using best-in-class codecs, right in the browser.

Comlink makes WebWorkers enjoyable.

⚡️Faster subsequent page-loads by prefetching in-viewport links during idle time

ndb is an improved debugging experience for Node.js, enabled by Chrome DevTools

Web rendering surface for Node applications

FireBug for designers › Edit any webpage, in any state https://a.nerdy.dev/gimme-visbug

[Deprecated] A node module to generate service worker code that will precache specific resources so they work offline.

Deliver experiences best suited to a user's device and network constraints

A collection of prototyped UI elements

[Deprecated] A collection of service worker tools for offlining runtime requests

🦔 A Webpack plugin to inline your critical CSS and lazy-load the rest.

PageSpeed Insights Reporting for Node

Bubblewrap is a Command Line Interface (CLI) that helps developers to create a Project for an Android application that launches an existing Progressive Web App (PWAs) using a Trusted Web Activity.

Run Lighthouse in CI, as a web service, using Docker. Pass/Fail GH pull requests.

Please use https://github.com/vuejs/preload-webpack-plugin instead.

JavaScript (engine) Version Updater

👩‍🏭 Adds native Web Worker bundling support to Webpack.

📰 Painless universal pre-rendering for Webpack.

A simple HTTP/2 server for development

Track compressed Webpack asset sizes over time.

File System Access API with legacy fallback in the browser

A game of proximity

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A custom element that allows you to easily put a Dark Mode 🌒 toggle or switch on your site:

A polyfill for CSS Container Queries

Helper classes and methods for implementing the idle-until-urgent pattern

Demos for different Houdini APIs

JSBI is a pure-JavaScript implementation of the official ECMAScript BigInt proposal.

Literate code examples for common UI patterns.

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CSS Custom Paint / Paint Worklet polyfill with special browser optimizations.

Web Audio API samples by Chrome Web Audio Team

A small library to detect which features of WebAssembly are supported.

WordPress feature plugin to bring Progressive Web Apps (PWA) to Core

A text editor for ChromeOS and Chrome

A Sample WordPress-based Progressive Web App

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A PWA directory, focusing on collecting PWA best practices and examples.

A list of community-built, third-party tools that can be used to improve page performance

A text editor build on the Native File System APIs

Browser extension that allows for linking to arbitrary text fragments.

Puppeteer as a service

Buffer-backed objects in JavaScript.

An adapter for enabling Rayon-based concurrency on the Web with WebAssembly.

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Examples of using the SameSite cookie attribute in a variety of language, libraries, and frameworks.

Air horn

AutoWebPerf provides a flexible and scalable framework for running web performance audits with arbitrary audit tools including PageSpeedInsights, WebPageTest and more.

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This is a demo shell powered by WebAssembly, WASI, Asyncify and File System Access API.

"Shrine" Progressive Web App sample built with React

Demo application for the Web Serial API.

Tool for testing the update flow for Chrome Extensions during development, including permission grants.

A progressive web app to read Stack Overflow content.

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A CSS custom property helper based on PostCSS. Supply a pool of variables and this plugin will add them to the stylesheet as they are used.

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A TypeScript implementation of the Android Debug Bridge(ADB) protocol over WebUSB

Track mouse/touch/pointer events for a given element.

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Implementation of WebDriver BiDi for Chromium

passkeys-demo is a demo web application developers can have a look and try themselves to learn how to develop a similar experience.

Running gPhoto2 to control DSLR cameras over USB on the Web

Collection of demos from the CSS and Web UI Chrome DevRel team.

A polyfill for self.scheduler

Smart Card Connector App for Chrome OS

Standalone Asyncify helper for Binaryen

Privacy Sandbox Analysis Chrome Extension and CLI for analysis and understanding of cookie usage on web pages, and new privacy-preserving Chrome APIs

Benchmark comparing JSON.parse vs. equivalent JavaScript literals across JavaScript engines.

The Rowing Monitor is a Progressive Web App that uses Web Bluetooth to connect to a PM5 Monitor and track exercises.

A node module that helps using browsers with selenium

A non-visual polyfill for Same-Document View Transitions

A Webpack plugin for generating Web Bundles output.

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Project Fugu API Showcase

Designcember—A celebration of web design brought to you by web.dev.

Helper extension for admins to configure SAML SSO for Chrome apps.

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CSS Selector Benchmarks, using PerfTestRunner and Puppeteer

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Llaminator is an installable, fully offline-enabled PWA that helps you conveniently store and easily access images directly from your browser, desktop, or home screen.

https://codelabs.developers.google.com/your-first-webgpu-app

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Project Sesame is an open-source demo web application built with node.js, designed to provide a hands-on environment for web developers to explore, experiment and learn a wide range of identity and authentication features and patterns.

TypeScript types conforming to the WebDriver BiDi specification

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A CLI tool to analyze feature specs and generate the required web platform tests

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