Ctrl + K
Home›HTML & Markdown Tools›HTML Outline Generator
Free Developer Tool

HTML Outline Generator

Generate a hierarchical outline from HTML headings (H1–H6).

What is HTML Outline Generator?

Generate a clean hierarchical outline from HTML headings to quickly understand the document structure.

How to use

  1. Paste HTML.
  2. Generate the outline.
  3. Review the heading hierarchy.
  4. Copy the outline.

Features

  • Heading hierarchy
  • Nested outline
  • H1–H6 support
  • Browser processing

Common Use Cases

  • SEO auditing
  • Documentation
  • Content planning
  • Accessibility review

Example

Input
<h1>Home</h1><h2>Products</h2><h3>Phones</h3><h2>About</h2>
Output
Home
├─ Products
│  └─ Phones
└─ About

FAQ

Are all heading levels supported?

Yes.

Is the heading hierarchy preserved?

Yes.

Is processing local?

Yes.

Related Tools

HTML Tag Stripper

Remove HTML tags.

HTML Heading Extractor

Extract HTML headings.

HTML to Markdown

Convert HTML to Markdown.

Related Articles

HTML vs HTML5: What's the Difference?

Understand how HTML5 improved the original HTML specification and what changed for modern web development.

Semantic HTML Explained

Understand how semantic HTML improves readability, accessibility and search engine understanding of your web pages.