HTML Analyzer
Paste HTML code to get a full insight report — headline metrics, detailed statistics, warnings, and improvement suggestions. Everything is processed on your device.
Everything runs in your browser. Your data is never sent to our servers.
Example
Example Input
<header><nav>…</nav></header><main><img src="x"></main>
Example Output
elements, % semantic, missing alt
How to Use
- 1Paste the HTML code you want to analyze into the input box.
- 2If options are available (e.g. SQL dialect or regex flags), set them as needed.
- 3Click Analyze (or press Ctrl+Enter).
- 4Read the report: headline metric cards, detailed statistics, warnings, and recommendations.
About HTML Analyzer
HTML Analyzer counts total elements, the percentage of semantic elements (header/nav/main/…), images (and those missing alt), links, inline styles, scripts, and the most frequent tags. It gives accessibility warnings (missing alt, "div soup") and recommendations.
Useful for a quick audit of markup quality and accessibility without a heavy tool.
FAQ
Is my data sent to a server?
No. The entire analysis runs in your browser with JavaScript. Nothing is uploaded, logged, or stored on our servers — safe for sensitive data.
How is this analyzer different from a parser, validator, or viewer?
An analyzer produces an insight report — metrics, statistics, warnings, and recommendations — to help you judge the quality or characteristics of the input. A parser breaks it into structure, a validator gives a valid/invalid verdict, and a viewer just displays it. An analyzer focuses on "how good / what are its characteristics".