Structure & Planning Free · in-browser · optional cloud history

Title & Subtitle Length

Check book title and subtitle character counts against Amazon KDP 200-character limits. Free title length checker with live preview for fiction authors.

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Book title 0 / 200

KDP title field — aim for a memorable title under 50 characters; save keywords for the subtitle.

Subtitle (optional) 0 / 200

About this tool

What you can do

Live character counts for title and subtitle fields
Separate 200-character limit tracking per KDP field
Listing preview showing how title and subtitle may appear
Instant feedback as you type — no submit button needed
Works with AI book title generator output for quick validation
Pairs with blurb builder and Kindle description generator
Private browser checker — title drafts never upload to servers

Planning tools and long-form structure

Novels fail when structure is improvised scene by scene. Beat sheets, chapter planners, and blurb builders help you decide pacing and reader promises before you spend tokens on prose. Pair these tools with an outline in Entangled Text so generation follows a spine.

AI book outline generator · AI novel writing workflow · Write a book with AI

How to use it

Type your book title in the title field.
Add an optional subtitle with genre or series keywords.
Watch character counts update live for both fields.
Keep each field under 200 characters before KDP upload.
Copy the final title and subtitle into your KDP listing or Story Studio metadata.

Tips for fiction authors

Keep your main title short and memorable — under 50 characters is ideal. Use the subtitle for searchable keywords readers actually type.
Amazon can reject titles with excessive punctuation, all caps, or promotional language like "bestseller" or "award-winning."
Series titles should follow a consistent format: "Series Name Book 1: Individual Title" helps readers find the next installment.
Test your title at small sizes. It must be legible as a thumbnail on Amazon search results — the preview shows roughly mobile truncation.
After the AI book title generator suggests options, paste each here to check KDP length limits before committing.

Related guides

How to Use AI to Find Which Scenes Secretly Do Two Jobs Use AI to Braid Subplots That Converge at the Climax Choreograph Fight Scenes with AI Without Losing Space Use AI to Find the Midpoint That Reframes Your Story

Common questions

What is the KDP title character limit?

Amazon KDP allows up to 200 characters for the title field and 200 for the subtitle field.

Should I stuff keywords in my title?

Amazon policies discourage keyword-stuffed titles. Keep subtitles searchable but readable — not a comma-separated keyword list.

Does punctuation count toward the limit?

Yes. Every character including spaces and punctuation counts toward the 200-character cap.

How does the search preview work?

It shows roughly how much of your title and subtitle may appear in Amazon mobile search — about 42 characters of combined display.

Is my title uploaded?

No. The title length checker runs entirely in your browser on Entangled Text.

Is this a book title checker and Amazon character counter?

Yes. Paste a title and subtitle and it counts every character against the 200-character KDP limits, flags a field that runs over, and previews roughly how much shows in Amazon mobile search.