Performance Analysis Tool
Point it at any site. We'll show you what's bloating it.
Get performance insights in seconds — from JS bundle size to Core Web Vitals.
Here's what you'll get
Real insights from real sites — no fluff, just facts.
Core Web Vitals
LCP
2.1s
Largest Contentful Paint
INP
89ms
Interaction to Next Paint
CLS
0.05
Cumulative Layout Shift
FCP
1.4s
First Contentful Paint
Bundle Analysis
Total bundle size: 2.4 MB
JavaScript847 KB
Images1.2 MB
CSS124 KB
JavaScript Libraries
Detected libraries and their impact
React
v18.2.0
42.2 KB
Lodash
v4.17.21
70.1 KB
Moment.js
v2.29.4
67.9 KB
jQuery
v3.6.0
87.6 KB
Chart.js
v4.2.1
58.3 KB
Suggested Fixes
Actionable steps to improve your site's performance
Replace Moment.js with date-fns — same power, 67% less bloat.
jQuery is unused — zap it to save 87.6 KB.
Images are well optimized — nice work.
Enable gzip compression — cut transfer size by 40% instantly.