Book Description HTML Formatter
Format bold, italic, headings and lists into HTML your KDP book description accepts.
What is the Book Description HTML Formatter?
This tool converts simple, easy-to-type markup (like **bold** and - bullet) into the exact HTML tags Amazon actually supports for the field you're editing — because that's not the same everywhere on Amazon.
KDP book descriptions vs. regular product descriptions — they follow different rules
This is the single biggest source of broken-looking Amazon descriptions: sellers copy HTML formatting advice meant for one field into the other.
- KDP Book Description field (typed directly into the HTML-accepting box, not the rich-text toolbar) currently supports
<b>,<i>,<u>,<br>,<p>, headings<h4>–<h6>(not h1–h3), and<ul>/<ol>/<li>lists — up to a 4,000-character limit including the tags themselves, per Amazon KDP's own help page. - Regular (non-book) Amazon product descriptions in Seller Central stopped supporting formatting HTML entirely after July 30, 2021 — today only line breaks survive, and everything else (bold, lists, paragraphs) gets stripped or shown as raw text, with a 2,000-byte limit. Richer formatting there now requires Amazon's A+ Content, which is only available to Brand Registry sellers.
This tool has a toggle for both, so you generate the right markup for the field you're actually pasting into.
How to use it
- Pick your target field (KDP book description, or a regular product description).
- Type your description using
**bold**,*italic*, a blank line between paragraphs,-for bullets,1.for a numbered list, and#for a heading. - Copy the generated HTML straight into the matching Amazon field. If you picked the product-description mode, you'll see a warning if you used formatting that field will just ignore.
Everything runs locally in your browser — nothing you type is uploaded anywhere.