HTML Size Analyzer
Analyze HTML size, inline CSS, scripts, images, and optimization opportunities.
Runs entirely in your browser - your files are never uploaded
What is HTML Size Analyzer?
HTML Size Analyzer is a free, web-based utility designed for instant, local web performance tools tasks. It allows users to compute, format, convert, or edit data directly in their browser without installing software or registering an account.
- 100% Free & Unlimited Usage
- 0% File Uploads (100% Client-Side Privacy)
- Instant Real-Time Calculations
- Mobile, Tablet & Desktop Compatible
How to use HTML Size Analyzer
Select or Enter Input
Provide your source file or type your values into HTML Size Analyzer.
Configure Settings
Adjust parameters, formatting options, or units in real-time.
Get Instant Output
Download the final processed file or copy the generated output.
About the HTML Size Analyzer
Unoptimized HTML markup, bloated inline scripts, and excessive inline CSS slow down DOM parsing and impact Interaction to Next Paint (INP).
Inspect byte distribution across HTML markup, inline <style> blocks, inline <script> tags, embedded SVG/base64 graphics, and DOM node depth.
Frequently asked questions
Related tools
Brotli Compression Calculator
Estimate Brotli compression savings for web assets.
Open toolGzip Compression Calculator
Estimate Gzip compression savings and optimize web delivery.
Open toolImage Compressor
Shrink JPG, PNG and WebP files without visible quality loss.
Open toolImage Resizer
Resize images to exact pixel dimensions or by percentage.
Open toolImage Converter
Convert between PNG, JPG and WebP in one click.
Open toolPDF Merge
Combine multiple PDF files into one ordered document.
Open tool