Overlay tools for drawing

Measure what
you see.

Tetorica Drawing Measure is a transparent overlay for keeping proportions, spacing, and angles in view while you draw.

Open Drawing Measure
A measure line over a drawing reference
01

Grid

Adjust spacing, rotation, color, and opacity to match the structure you want to see.

02

Measure

Drag a ruler over any app. Switch between a line, chained measurement, and a reference unit.

03

Overlay

Keep it above your drawing app or make it click-through when you only need a quiet guide.

For Desktop

Use always-on-top and click-through to keep grids and measurements available over any drawing application.

For Web

Import an image or capture a shared window as a reference. The itch.io preview links to the PWA when screen sharing is unavailable.