Maker Margin Planner

Maker Margin Planner helps sellers estimate what they actually keep after marketplace fees, shipping costs, materials, packaging, labor, discounts, and optional offsite ads.

Launch pricing: list price is $4.99. Use code LAUNCH299 for 40% off the first 50 purchases, about $2.99 before tax.

The calculator and license check run locally in the browser. There is no backend, no analytics SDK, and no marketplace account connection. The download includes the browser extension ZIP, install notes, privacy/support docs, QA report, and a launch license code text file.

Use it for single-order planning, breakeven estimates, target-margin pricing, and quick batch CSV checks. A free web demo is available at https://site-mocha-three-50.vercel.app/maker-margin-planner-demo.

This is an estimator, not tax, legal, accounting, or financial advice. Sellers should verify current marketplace fee rules for their own account.