Calculate NFT creator royalties, marketplace fees, and final earnings accurately. A free, browser-based tool for Web3 artists to forecast resale profits.
AI Generation Prompt
NFT Royalties & Creator Earnings Calculator
Overview
A high-precision, client-side utility designed for Web3 artists, digital creators, and project managers. This tool provides an instantaneous, transparent breakdown of royalty payouts, marketplace platform fees, and net revenue for NFT transactions.
Technical Constraints & Compliance
- Single-File Architecture: The entire app, including styling and logic, must reside in a single HTML file.
- Sandbox Safety: NO
localStorage,sessionStorage, or cookies allowed. State must be handled entirely in memory. - No Popups: All interactions must occur within the DOM (custom modals for disclaimers).
- Design: STRICTLY light-mode aesthetic. No dark mode toggles. Use a clean, professional, "SaaS" interface.
Core Feature Set
- Dynamic Calculation Inputs:
- Sale Price (ETH/SOL/MATIC input).
- Royalty Percentage (0% - 100% slider and number input).
- Marketplace Platform Fee (Input field for percentage, e.g., 2.5%).
- Real-time Output Dashboard:
- Large, high-visibility result cards displaying: Total Sale, Marketplace Cut, Creator Royalty Amount, and Net Revenue to Creator.
- Comparison Mode:
- Toggle to add a second calculation row to compare different royalty percentage scenarios side-by-side.
- Visual Data Representation:
- A simple CSS-based percentage bar showing the split between Marketplace Fee, Royalty, and Total Profit.
- Copy to Clipboard: A clean button to copy the calculation summary as formatted text for sharing.
UI/UX Specification
- Layout:
- Header: Minimalist, centered title with a descriptive sub-headline.
- Main Tool Area: A centered, white-background card with a soft drop-shadow. Inputs arranged in a two-column grid on desktop, stacking to one column on mobile.
- Results Section: A prominent, high-contrast block at the bottom of the card with large, animated font size transitions when values update.
- Visual Style:
- Palette: Crisp whites, soft grays (#F9FAFB), slate-blue accents (#4F46E5) for active elements, and success-green (#059669) for earnings displays.
- Typography: Sans-serif fonts (e.g., 'Inter' or 'system-ui') with a clean, airy weight.
- Micro-interactions: Smooth CSS transitions for number counting (optional JS counter animation), hover scaling on buttons, and subtle inputs focusing states.
Implementation Instructions
- Use Vanilla JavaScript for all mathematical logic.
- Ensure responsiveness using flexible CSS Flexbox/Grid layouts.
- Do not rely on external frameworks; use raw HTML5/CSS3.
- Ensure all external links (if any) have
target="_blank" rel="noopener noreferrer". - Design the layout to be centered vertically and horizontally within the viewport.
Spread the word
Files being used
Frequently Asked Questions
Everything you need to know about using this application.
How do NFT creator royalties work on secondary markets?
NFT creator royalties are a percentage of the sale price that is automatically paid to the original creator whenever an NFT is resold on a secondary marketplace. This mechanism allows artists to continue earning from their work as it appreciates in value over time. Most marketplaces support royalty standards like EIP-2981, which embed the royalty percentage directly into the smart contract. Our calculator helps you understand exactly how much you will receive based on these percentages after marketplace fees are deducted.
Why is it important to calculate earnings before a sale?
Calculating your potential earnings beforehand allows you to set realistic pricing strategies and understand the impact of different marketplace fee structures. Different platforms charge varying service fees, which directly affect the net profit you take home from each transaction. By using this calculator, you can simulate various sale prices and royalty settings to better plan your financial roadmap as a digital creator. It helps in deciding whether to increase your royalty percentage or adjust your initial listing price for maximum return.
Are NFT royalties guaranteed across all marketplaces?
While many major marketplaces support creator royalties, they are not universally enforced by all platforms. Some marketplaces have moved toward optional royalty models, meaning the implementation can vary significantly depending on the platform and the specific smart contract standard used. Always check the specific terms and conditions of the marketplace where you are listing your assets. Our tool is designed for projection purposes, providing you with a mathematical model to estimate your income based on your specified royalty inputs.
Is this tool safe to use for my financial planning?
Yes, this tool is entirely client-side, meaning it runs locally in your web browser. No data is sent to external servers, and no information is stored, keeping your financial calculations completely private and secure. Because it does not use cookies or local storage, you can be confident that your session data remains ephemeral and is cleared as soon as you close the browser tab. It is a strictly functional, sandbox-compatible tool designed for quick and accurate utility.
