1. Enter your details
Fill in the fields relevant to your task. Required information is checked before processing.
Back
Inspect pasted HTML headings for hierarchy, missing levels and empty headings.
Enter your details
Use your own page data or pasted content. Processing stays in your browser.
All processing happens locally in this browser. No page is crawled and no information is sent to an external API.
What this tool does
Review H1 through H6 elements in HTML you paste, or provide a plain-text outline using # marks for heading levels. The tool reports counts, empty headings and jumps in hierarchy without requesting a remote page.
2. Generate the result
Select Generate or Process. Any validation issue appears above the action controls.
3. Copy or download
Review the output, copy it to your clipboard or download it as a local file.
Example
Paste a small HTML fragment containing an H1 followed by H2 sections and H3 subsections. Review the outline and warnings before editing the source page.
Frequently asked questions
How should I use this result?
This tool only examines the markup you provide. It does not fetch a URL, run client-side scripts or assess whether a heading is useful in its page context.
Does this tool send a message or API request?
No message or API request is sent automatically. Any external action requires an explicit user click.