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Dev tools · October 12, 2021

HTML Size Analyzer

Identify the cause of bloated HTML code

HTML Size Analyzer launched on October 12, 2021 with 86 votes, #550 of 2,933 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 5 years on.

What it does

This tool parses HTML code to identify what causes bloated document responses. For example, you might find that there are large inline images or that there's a big chunk of JSON for hydrating a single-page app.

Break HTML document size down by tag and attribute. Discover bloat like code duplication, large hydration state, and inline images.

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    just wanted to share this useful tool with you. I have been looking at something like this for a very long time. https://chrome.google.com/webstore/detail/css-used/cdopjfddj... what it does: it analyses your html dom and looks for css classes. Then it extracts it all and combines it into 1 single css file. I used 5 css framworks which was on 340kb kb. This tool made it 36kb!

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