Amazon allows 7 keyword slots, 50 characters each. Check yours in seconds — free.
7 slots, 50 characters each. Every slot is a chance to be found on Amazon search.
No commas. Commas split a slot and waste characters. Use spaces only.
Spaces count. Each space counts toward the 50-character limit.
Don't repeat. Don't reuse words already in your title, subtitle or category — it wastes discoverability.
How many characters is a KDP keyword? Up to 50 per slot, 7 slots total.
Is this checker free? Yes — completely free, no signup, runs in your browser.
Can I save my keywords? They're saved in your browser's local storage automatically — close the tab and come back later.
Turn one book topic into 5 titles, a subtitle, a conversion-focused Amazon description and all 7 keywords — in seconds. Free for 3 uses.