Write Better Books. Get Better Reviews.
Strengthen your manuscript, hook readers from the first page, and optimise your book for Amazon discovery, reviews, and sales.
Writing Tools
Improve your book with our Manuscript Critique, Emotional Arc analysis, Reader Experience insights, Language checking, Amazon Look-Inside optimisation, and KDP keyword & category generators.
Trusted Worldwide
Used by authors, publishers, and literary professionals around the world to strengthen manuscripts, refine storytelling, and prepare books for successful publication and release.
Sell More Books
Increase discoverability and earn better reviews with stronger manuscripts, improved readability, reader-focused storytelling, and Amazon Look-Inside optimisation that converts more browsing readers.
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Sign up to the Pepperfish Free Plan and try us today with no payment details required!
★★★★★
Receive structured, literary-agent-style feedback on your writing. Analyse story structure, pacing, clarity, and market readiness to strengthen your manuscript before publishing.
Perfect for:
✔ Authors preparing for publication
✔ Improving structure and pacing
✔ Strengthening reader engagement
📝 Manuscript Critique Tool
Strengthen your manuscript with clear, structured critique and boost your sales today!
📈 Emotional Arc Visualizer
Analyse the emotional flow of your story and see how tension rises and falls throughout your chapter or scene. Instantly spot flat sections, repeated beats, or emotional overload.
Perfect for:
✔ Fiction writers
✔ Thriller and romance authors
✔ Strengthening reader engagement
📚 Reader Experience Analyzer
Understand how your writing feels from the reader’s perspective. Analyse pacing, clarity, emotional load, and flow to create a smoother, more engaging reading experience.
Perfect for:
✔ Long-form fiction
✔ Non-fiction manuscripts
✔ Series writers
👀 Look Inside Optimization
Make a stronger first impression on Amazon. Analyse your opening pages to ensure your “Look Inside” preview hooks readers quickly and keeps encourages them to buy the book,
Perfect for:
✔ Improving conversions
✔ Reducing bounce-offs
✔ Strengthening openings
✍️ Language Checker
Polish your writing without losing your voice. Check grammar, clarity, and readability while keeping your natural style intact. Improve flow and readability without over-editing your work.
Perfect for:
✔ Final drafts
✔ Self-editing
✔ Clean submissions and uploads
🔍 KDP Keyword Generator
Find better keywords ideas to help readers discover your book. Generate relevant, buyer-focused keyword ideas designed to improve visibility and search rankings on Amazon.
Perfect for:
✔ Self-publishers
✔ Non-fiction authors
✔ Low-content and niche creators
🗂 KDP Category Generator
Choose smarter categories without the guesswork. Discover hidden and low-competition Amazon categories that can help your book rank higher and reach the right readers.
Perfect for:
✔ Authors targeting bestseller lists
✔ Books struggling with discoverability
✔ Category optimisation and relaunches
All Our Tools Are Available
on the Free Plan
Try Pepperfish for free and explore all the tools at no cost. When you’re ready for unlimited critiques and full access, upgrade to Pepperfish Pro for just $15 per month, with a 7-day free trial and the freedom to cancel anytime.
