A designer’s ruler with superpowers

Goldie App is the best way to measure and visualize the golden ratio and many other proportions on Mac. A small tool that helps produce immaculate, balanced design effortlessly.


Goldie App puts an overlay ruler on your screen to simplify golden ratio referencing. Adapting to background color, rulers are always visible on screen.

Rulers for every job

Apart from golden ratio, the app references custom proportions like the rule of thirds, the regular and diagonal rule of thirds, and baroque proportions. To switch between different variations, use 6 ruler themes integrated into the app.

Designed for Ease

Art is all about golden ratio, but interrupting your artistic flow with math is just wrong. Goldie App was designed to help you while staying out of your way. It sits in the top menu bar where you can easily grab it and puts transparent overlay on your projects, barely noticeable.

Golden Ratio Calculator

You don’t have to know math to calculate golden ratio in design. Goldie gives you exact numbers, always. Measure from any ratio point. On or off screen, it works with all design projects you can think of.

Advanced Settings

Dictate the rules and Goldie will follow. For your convenience, the app is based on commands that are native to macOS. But you can personalize it even more. Create custom shortcuts for showing the ruler or toggling between ruler themes, lightning fast.

Dark Mode

If you are more creative in the darkness, Goldie will give you the darkness. It will automatically switch between light and dark themes based on your OS preferences, looking sharp, always.