Free tools / Description formatter

Book description formatter

Write your blurb, see how it will look, and copy HTML that KDP accepts — with a live count against the 4,000-character limit, formatting included.

Runs in your browser — nothing you type is sent or saved

Write

Blank line = new paragraph. **bold**, *italic*, __underline__, “# ” heading, “- ” or “1. ” lists.

Preview

KDP limit 4,000
KDP-ready HTML

Pasting it into KDP

  • In your KDP Bookshelf, open the book's details and paste into the Description box (switch it to its HTML/source view if your editor shows one).
  • Only the tags KDP supports are used: paragraphs, line breaks, bold, italic, underline, one heading size and lists.
  • KDP counts every character, including the HTML tags — so the count here is the one that matters.

Source: KDP — book description formatting, checked 7 October 2026.

Check the rest of your listing

KDP Metric Pro checks your title, subtitle and 7 keywords against KDP's metadata rules before you hit publish.

See KDP Metric Pro