Publishing Utilities
14 toolsFast and reliable publishing engines powered by our robust backend.
Random ISBN Generator
Generate valid random ISBN-13 numbers in bulk for testing.
ISBN Converter
Convert between ISBN-10 and ISBN-13 formats with check digit calculation.
ISBN Hyphenator
Hyphenate and validate ISBN-10 and ISBN-13 numbers with official range data.
Royalty Calculator
Calculates earnings for ebook, paperback, and hardcover across KDP, IngramSpark, and other platforms.
KDP Category Finder
Recommends Amazon KDP categories and BISAC codes with competition insights.
Amazon KDP Keyword Research Tool
Find real Amazon shopper search keywords, analyze competition, and optimize all 7 Kindle Direct Publishing (KDP) metadata slots up to 50 characters.
EPUB File Validator
Validate EPUB eBooks against IDPF & W3C specifications. Detect XML syntax errors, broken links, missing assets, and store compliance issues.
Self-Publishing Income Calculator
Projects royalties, monthly/annual income, and break-even timing based on sales and cost assumptions.
Book Cover Template Generator
Generates full-wrap print-ready cover dimensions with exact spine, bleed, and safe zones for KDP, IngramSpark, and Lulu. Includes visual preview and PDF download.
Book Price Optimizer
Models ebook and paperback pricing to balance royalties, margins, and reader expectations.
Self-Publishing Cost Calculator
Estimate the full publishing budget including editing, design, formatting, distribution, and launch costs.
ISBN Lookup Tool
Looks up book metadata by ISBN-10 or ISBN-13 across multiple sources.
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