Stone Evans Lab

THE LAB

Useful tools built to solve real problems.

I find real problems people are struggling with and build simple tools to solve them. Explore the experiments below.

Calculate what to charge for a handyman job — or find out what you really earned after materials, travel, shopping time and other costs.

Know what to charge for your baked goods — calculate ingredient costs, labor, overhead, and profit with a suggested selling price.

Generate beautiful, high-quality AI images from a prompt — with art styles, sizes, and reference images.