KDP Author Tools

Self-Publish Toolkit

Research niches, calculate royalties, generate covers — everything KDP authors need, in one place.

15+ Tools· Free to Start· Built for KDP

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Free KDP Tools — No Account Needed

Start publishing smarter today. These six tools are completely free.

Free

Cover Template Generator

Generate perfectly-sized PDF and Canva templates for all standard KDP trim sizes, customised to your page count.

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Free

Royalty & Profit Calculator

Estimate your printing costs and net royalties across multiple currencies and book formats before you publish.

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Free

BSR Sales Estimator

Convert any Amazon Best Seller Rank into estimated daily and monthly sales — instantly validate niche demand.

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Free

Category Finder

Discover the exact Amazon browse node paths for any KDP category so you can place your book where it wins.

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Free

Countdown Deal Planner

Plan KDP Countdown Deals and Free Book Promotions with a timeline builder that maximises your promotion window.

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Free

Publishing Troubleshooter

Diagnose common KDP publishing problems — formatting errors, cover rejections, royalty questions — in seconds.

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17+
KDP Tools Available
$0
to Get Started
5 min
Average Setup Time

Simple, Transparent Pricing

Choose the plan that fits your publishing goals. Upgrade or cancel anytime.

Free
$0/mo
  • Cover Template Generator
  • Royalty & Profit Calculator
  • BSR Sales Estimator
  • Category Finder
  • Countdown Deal Planner
  • Publishing Troubleshooter
Lite
$6.99/mo
  • 50 credits per month
  • Book Keyword Spy
  • Competition Analyzer
  • Niche Navigator (200+ niches)
  • Listing Generator
  • Amazon Ads Keyword Builder
Most Popular
Pro
$17.99/mo
  • 200 credits per month
  • Everything in Lite
  • Keyword Rank Tracker
  • Keyword Gap Finder
  • Competitor Discovery
  • Listing Optimizer
  • Category Research (live data)

What's Included in Each Plan

Every tool, clearly mapped to the plan that unlocks it.

Feature Free Lite Pro
Cover Template Generator
Royalty & Profit Calculator
BSR Sales Estimator
Category Finder
Countdown Deal Planner
Publishing Troubleshooter
Smart Keyword Search
Competition Analyzer
Niche Navigator (200+ niches)
Listing Generator
Listing Optimizer
Amazon Ads Keyword Builder
Keyword Rank Tracker
Keyword Gap Finder
Category Research (live)
Competitor Discovery
Monthly Credits Unlimited50 / mo200 / mo

Frequently Asked Questions

Everything KDP authors ask before getting started.

Self-Publish Toolkit is a web-based platform offering 15+ tools designed for Amazon KDP (Kindle Direct Publishing) authors. It covers the full publishing workflow: finding profitable niches, estimating royalties, generating book cover templates, researching keywords, analysing competition, and tracking keyword rankings. Free tools require no account; Lite and Pro plans unlock advanced research and AI-powered features.
The Free plan gives unlimited access to six core tools — Cover Generator, Royalty Calculator, BSR Estimator, Category Finder, Deal Planner, and Troubleshooter — at no cost. The Lite plan ($6.99/mo) adds 50 monthly credits for keyword research, competition analysis, niche discovery, and listing generation. The Pro plan ($17.99/mo) includes 200 monthly credits and unlocks the Keyword Rank Tracker, Competitor Discovery, and Listing Optimizer.
Enter your book's list price, trim size, page count, and marketplace (US, UK, EU, etc.). The calculator applies Amazon's current printing cost formula and royalty rate (35% or 70%) to show your net royalty per sale and estimated monthly earnings at different sales volumes.
BSR (Best Seller Rank) is a number Amazon assigns to every book — the lower the number, the more copies it's selling. The BSR Estimator converts any BSR number into an estimated daily and monthly sales figure. This helps you gauge the true demand in a niche before investing time writing a book.
Use the Niche Navigator (Lite/Pro) to browse 200+ pre-researched KDP niches filtered by competition level, estimated monthly revenue, and keyword demand. Combine it with the Competition Analyzer to study the top 10 books in any niche — their BSR, review count, and listing quality — so you can identify gaps you can realistically win.
Yes. Subscriptions are month-to-month with no long-term contract. You can cancel from your account settings at any time. You keep access to your plan's tools until the end of the current billing period.
There is no time-limited free trial, but the Free plan gives you hands-on access to six tools with no payment details required. This lets you evaluate the platform before deciding whether the Lite or Pro research tools fit your publishing workflow.
Payments are processed securely by Stripe. All major credit and debit cards are accepted, including Visa, Mastercard, and American Express. Payment details are never stored on our servers.

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