Performance
High-resolution JavaScript timer based on performance.mark/measure (491 bytes min+gz)
Web performance library for measuring all performance vitals metrics
Browser instrumentation helper that makes it easier to capture UX speed metrics
Generic interface for PerformanceObserver API.
The isomorphic, simplest, and lightweight solution for User Timing API in Javascript - 🚀 only 208B 🚀. Tree-shaking and entry points built-in. Simple as that!
sitespeed.io is an open-source tool for comprehensive web performance analysis, enabling you to test, monitor, and optimize your website’s speed using real browsers in various environments.
Responsive, SVG based HAR waterfall viewer
Xray your HAR file and know all about the page
Lighthouse plugin for sitespeed.io
Automated auditing, performance metrics, and best practices for the web.
Static HTML intended to have consistent performance over time.
Automate running Lighthouse for every commit, viewing the changes, and preventing regressions
A useful wrapper around Google Lighthouse CLI
performance-budgets gives you a simple way to check and stay on top of performance
A React component used for rendering Lighthouse JSON reports Demo:
A Webpack plugin for Lighthouse
Wrapper for VanillaJS, VueJS & React of the Original Lighthouse Reporter/Viewer
⏱ Measure browser timing and do something with it
⏱→ 🚀A set of tools for improving performance your application (balancer, performance, PerfKeeper, LazyPromise).
Programmatically read performance metrics using Puppeteer
Transform Performance Timelines into Chrome Devtools Timelines
Page performance record, get performance timing to log
Measure and Optimize Web Performance
Example how to use sitespeed.io to monitor the performance of your web site
👓 A straight-forward interface to retrieve browser performance timing metrics.
React components for efficiently rendering large lists and tabular data
🎮 The only Front-End Performance Checklist that runs faster than the others