Automated auditing, performance metrics, and best practices for the web.

Node.js tool for optimizing SVG files

The only Front-End Performance Checklist that runs faster than the others

GPU Accelerated JavaScript

Monkey patches React to notify you about avoidable re-renders.

Extract & Inline Critical-path CSS in HTML pages

JavaScript Performance Monitor

Essential metrics for a healthy site.

Calculate the real cost to run your JS app or lib to keep good performance....

A benchmarking library. As used on jsPerf.com.

A fast, interactive web-based viewer for performance profiles.

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

A framework for finding JavaScript memory leaks and analyzing heap snapshot...

A tool for finding memory leaks in web apps

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

Web performance library for measuring all performance vitals metrics

Optimizes static websites for best user experience and best Core Web Vitals...

A simple, tiny and lightweight benchmarking library!

Performance testing companion for React and React Native

Fast and consistently responsive apps using a single function call