GoogleChromeLabs

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

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

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

A collection of prototyped UI elements

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.

JavaScript (engine) Version Updater

Track compressed Webpack asset sizes over time.

File System Access API with legacy fallback in the browser

Clooney is an actor library for the web. Use workers without thinking about workers.

A game of proximity

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

A polyfill for CSS Container Queries

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

Literate code examples for common UI patterns.

tooling.report a quick way to determine the best build tool for your next web project, or if tooling migration is worth it, or how to adopt a tool's best practice into your existing configuration and code base.

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

This repository contains a suite of developer utilities and demos designed to support the adoption of the WebMCP API.

A Sample WordPress-based Progressive Web App

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