Node.js tool for optimizing SVG files

Scan and fix React performance issues

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 fast, interactive web-based viewer for performance profiles.

A benchmarking library. As used on jsPerf.com.

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

A tool for finding memory leaks in web apps

Web performance library for measuring all performance vitals metrics

Benchmark tooling that loves you

A simple, tiny and lightweight benchmarking library!

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

Performance testing companion for React and React Native

hack into react internals

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

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

Context-aware web performance for everyone