What it measures
- The x, y position of any pixel on the screen
- Offsets (ΔX, ΔY) from an origin you set
- Alignment between elements across the whole display
- Positions on every display, each measured from its own top-left corner
How to read screen coordinates with the crosshair
Choose the crosshair
Press ⌃⌥M, then 6. Guide lines follow your pointer across the whole screen.
Point at the pixel
Move the pointer; arrow keys move it one pixel at a time. The readout shows x, y in pixels.
Set an origin for offsets
Click, or press A, to set an origin. Now ΔX and ΔY show the distance from it. Click near the origin again to clear it.
Keyboard shortcuts
- 6
- Choose the crosshair
- A
- Set or clear the origin
- ←→↑↓
- Move by 1 px — with ⇧, by 10 px
- Tab
- Switch between the point and the origin
- ⌘C
- Copy the coordinates, like “622, 440 px”
Free or Pro?
The Crosshair is part of Measure My Pro, a one-time purchase. Before you buy, it opens once for a full session, so you can try it on your own work.
Enhanced Precision — edge snapping, gap detection and a real-pixel loupe — is free and optional. It needs Screen Recording permission; everything else works without it.
Questions and answers
How do I see pixel coordinates on my Mac screen?
Turn on Measure My’s crosshair. It follows your pointer and shows its exact x, y position in pixels, measured from the top-left of the display it’s on.
Can I measure the offset between two points?
Yes: set an origin with a click or the A key, and the readout adds ΔX and ΔY — the horizontal and vertical distance from the origin to the pointer.