Page Size Checker

Estimate source payload size from pasted HTML content.

100% Browser-Based

Files Never Leave Your Device

No Server Uploads

Zero Data Collection

How It Works

Paste HTML or source text.

Get bytes, KB, MB, character count, and line count.

Use metrics to reduce source payload bloat.

Uses UTF-8 TextEncoder for byte estimation.

Shows bytes, KB, MB, chars, and lines.

Runs entirely in-browser from pasted text.

Does it include image/script files?

No. It estimates pasted source only, not external assets.