Node.js tool for optimizing SVG files

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

Essential metrics for a healthy site.

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

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

Benchmark tooling that loves you

Lightweight JavaScript library that predicts user intent based on mouse mov...

hack into react internals

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

A library to inline your app's critical CSS and lazy-load the rest.

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

Context-aware web performance for everyone

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

JavaScript Performance Monitor

Performance testing companion for React and React Native

A benchmarking library. As used on jsPerf.com.

A simple, tiny and lightweight benchmarking library!

Web performance library for measuring all performance vitals metrics

GPU Accelerated JavaScript

High-resolution JavaScript timer based on performance.mark/measure (491 byt...

Browser-based JavaScript benchmarking tool.

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

A tool for finding memory leaks in web apps

Extract & Inline Critical-path CSS in HTML pages