Bundle Size Analyzer
Budget your JS bundle size
📚 Learn more — how it works, FAQ & guide Click to expand
Learn more — how it works, FAQ & guide
Click to expand
Bundle size analyzer
How to use this tool
- 1
Enter bundle sizes
From webpack/vite stats.
- 2
See budget status
Per-chunk + total.
Frequently Asked Questions
Good budgets?
Mobile: JS <200KB gzipped, CSS <50KB. Initial page load total <300KB for <3s LCP on 3G.
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100% Privacy. This tool runs entirely in your browser. Your data is never uploaded to any server.