KDP Royalty Calculator
Use this free KDP royalty calculator to estimate Amazon KDP royalties for Kindle eBooks, paperbacks, and hardcovers with royalty rates, printing cost, delivery cost, VAT, and projected book sales.
Free Online Tools for Authors & Publishers
Browse practical browser-based tools for publishing work. Start with KDP royalty planning and BSR sales estimates, then use this directory as new author and publisher tools are added.
Browse Tools
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KDP Sales Estimator (BSR)
Use this free KDP BSR sales calculator to estimate Amazon KDP earnings per month from Best Sellers Rank (BSR). Enter BSR, marketplace, and format to compare daily, weekly, and monthly copies sold.
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Free AI Coloring Page Generator
Use this free AI coloring page generator to create printable black-and-white outline coloring sheets from a short idea. Pick a kid-friendly art style and line weight, then download a high-contrast PNG coloring page for crafts, classrooms, or relaxation.
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Free AI Coloring Page from Photo
Use this free AI tool to turn a photo into a printable black-and-white outline coloring page. Upload a picture or paste an image link, choose art style and line weight, then download a square PNG coloring sheet.
Choose the Right Tool
- Find: Search by task, calculator name, format, or publishing keyword.
- Open: Go to the tool page for the complete workflow, inputs, and limits.
- Estimate: Enter your details and use the result as a planning estimate.