Publish With Confidence Before You Submit Your Manuscript
ManuCheck — The AI Publishing Quality Engine That Helps Authors Create Better Books, Stronger Covers, and Market-Ready Manuscripts.
You bring the OpenAI key. Always.
Manucheck runs every analysis on your own OpenAI API key — this is required to use the app. Your subscription pays for the platform, not for resold tokens.
- 4 formats
- DOCX, PDF, EPUB, TXT
- 7 days
- Automatic file deletion
- 6 passes
- Scored per category
Report preview
The Longer Winter — 88,420 words
Table of contents omits chapters 9 and 14 (heading style mismatch)
Copyright page missing rights statement
Keyword set duplicates the chosen category
Manucheck - KDP Compliance AI provides AI-powered publishing guidance and does not guarantee approval by Amazon KDP. This platform is not affiliated with Amazon.
Demo
See Manucheck in action
A quick walkthrough of the dashboard, upload flow, and report.
What it checks
Six review passes over your manuscript, in one run
Each pass is scored independently so you know exactly which part of the book needs work — the prose, the file, or the listing.
AI Manuscript Review
A full read of your book, not a spell-check. Manucheck evaluates writing quality, structure, organization, readability and grammar chapter by chapter.
- Writing quality
- Structure
- Organization
- Readability
- Grammar
Publishing Readiness Review
Catches the mechanical problems that get manuscripts bounced or rebuilt after upload: layout, matter and chapter architecture.
- Formatting
- Front matter
- Back matter
- Chapter structure
- Book organization
Metadata Assistance
Discoverability is decided before the first reader arrives. Get concrete metadata your listing can use on day one.
- Title
- Subtitle
- Keywords
- Categories
- Book description
Quality Improvement
Pinpoints the passages that lose readers, with specific rewrites instead of vague encouragement.
- Weak sections
- Repetitive content
- Clarity issues
- Reader experience improvements
Professional Reports
Every analysis produces a shareable report your editor, designer or co-author can act on immediately.
- Scores
- Findings
- Recommendations
- Action checklist
Risk Review
Flags passages that may raise copyright or trademark questions so you can review them with counsel before publishing.
- Potential copyright concerns
- Potential trademark concerns
- Quality concerns
How it works
From upload to actionable report in minutes
Connect your OpenAI key
Manucheck runs on your own OpenAI API key. It is encrypted with AES-256-GCM before storage and never displayed again after you save it.
Upload your manuscript
Drag and drop DOCX, PDF, EPUB or TXT. We validate the file, show upload progress and store it in an encrypted private bucket.
Text extraction
The document is parsed into clean text. Formatting signals — chapter headings, front matter, back matter — are preserved for the structural pass.
Multi-pass AI analysis
Writing, publishing readiness, metadata and risk are reviewed against the current KDP guidance ruleset, stamped with its policy version.
Report generation
You get scores per category, ranked issues, concrete recommendations and a pre-publication checklist you can print or export to PDF.
Automatic deletion
On day 5 we remind you. On day 7 the original file, extracted text and processing cache are permanently deleted. The report stays.
Cover Analyzer
A cover that earns the click, before you submit
Your cover is judged in a thumbnail in under a second. Manucheck analyzes it against proven design patterns from successful books in your category — then shows you how to make it stronger. Included in every plan at no extra cost: 1 cover analysis on Free, 5 per month on Novice, unlimited on Pro — part of the same package as your manuscript checks.
Upload your cover
Add a JPG, PNG or WEBP cover with its title, subtitle, author, category and target marketplace — plus up to three competitor covers if you want a direct comparison.
AI cover evaluation
A vision model scores visual hierarchy, typography and market fit — thumbnail readability, author-name scale, focal point, type style and contrast.
Competitive score
Your cover versus proven category patterns, out of 100 — thumbnail readability, professional design, genre alignment, emotional appeal and keyword visibility.
Improvement plan
Prioritised, concrete instructions — like “increase title size 25%” — so you know exactly what to change before re-exporting.
AI enhancement & fix-all
A Fix-all button applies the suggested wording, and a generator creates an original, stronger cover concept you can download.
Design brief
Layout ideas, color suggestions, typography directions and ready-to-use image prompts for you or your designer.
Privacy by design
Your book leaves in seven days. Always.
Manuscripts are stored in a private encrypted bucket only your account can read. On day five you get a reminder. On day seven the original file, the extracted text and every processing artefact are permanently deleted. Your reports stay.
Analysis runs on your own OpenAI API key, encrypted with AES-256-GCM and never shown again after you save it. Your manuscript is never used to train a model.
Encrypted at rest
AES-256 storage and AES-256-GCM key envelopes.
7-day expiry
Enforced by schedule, not by request.
Row-level security
Access enforced in the database itself.
Audit logging
Append-only record of privileged actions.
Before and after
Not just a list of problems — the corrected text
Every finding arrives with the fix already written. Here are four taken straight from a real report on an 88,420-word novel.
Chapter heading
Manual bold text instead of a heading style — invisible to the table of contents
Before
**Chapter Nine**
After
Chapter Nine · [Heading 1 applied]
Copyright page
No reservation of rights
Before
Copyright © 2026 Dana Whitfield
After
Copyright © 2026 Dana Whitfield. All rights reserved. No part of this book may be reproduced without written permission.
Keywords
Two slots duplicate the browse category
Before
literary fiction, family saga, novel, drama, fiction book, winter, sisters
After
multigenerational family novel, estranged sisters story, small town literary fiction, inheritance drama, slow burn family secrets, rural winter setting, book club fiction
Prose
Filter words hold the reader at a distance
Before
She felt the cold seep in and realised she had left the window open.
After
The cold seeped in. The window stood open, latch swinging.
What authors and publishers say
“I had three rounds of formatting problems on my last release. Manucheck found every one of them in eleven minutes, before I uploaded anything.”
“We run twenty-two titles a year. The readiness checklist replaced a two-page internal doc that nobody kept current.”
“The metadata pass alone paid for the year. Our keyword set was lazy and the category recommendations were sharper than what we had been guessing at.”
“The trademark flags caught two brand references I would have shipped without thinking. That is exactly the kind of thing you want a second reader for.”
“The cover scoreboard was brutal in the best way. My thumbnail failed at 40 pixels, and the improvement plan told me exactly why and what to change. It out-sold my old design after one redesign.”
“I'd had the same cover for three years and assumed it was fine. The competitor comparison showed me the genre pattern I was missing, and the generator produced a concept my designer actually used.”
Find the problems before your readers do
Run a full analysis on your first manuscript free. No card required, and your file is deleted automatically after seven days.