Our apps / Pixel Caliper
MAC APP

Pixel Caliper

Screen ruler & edge snapping for your menu bar

Point at anything on screen to measure it. Edge snapping finds the edges around the pointer and shows the distances in four directions, plus width and height, with a loupe, guides and a ruler that follows the pointer.

Free to use without a key: the ruler that follows the pointer, guides with the gaps between them, and points or pixels.

Buy a license key to unlock Pro: edge snapping, the loupe, several measurements on screen and copying sizes as text, CSS or SwiftUI.

macOS 14 Sonoma or later · Version 1.0 · 2.2 MB disk image · Notarized by Apple

One-time $9.99 for the app with Pro: edge snapping, the loupe and every Pro tool. No subscription. One license key works on up to 3 of your Macs.

Download: The download (a signed, notarized .dmg) comes with your purchase in your Gumroad receipt, together with your license key. Updates install from inside the app.

Buy now opens Gumroad's checkout on this page; Gumroad is the seller and handles payment, sales tax and your receipt.

Edge snapping (Pro) measuring a Book button: its size, 84 by 32 points, and the gaps around it

Features

  • Edge snapping: distances to the nearest edges in four directions, plus width and height
  • A loupe that copies colors as hex, RGB, SwiftUI or NSColor
  • Keep several measurements on screen while you compare
  • Copy sizes as text, CSS or SwiftUI code
  • Keyboard shortcuts for everything (Control-Shift plus a letter)
  • A horizontal or vertical ruler that follows the pointer
  • Guides with the gaps between them
  • Points or pixels, on every display
The loupe (Pro) zoomed in on a color, with the Colors panel showing its hex, RGB, SwiftUI and NSColor values
Free guides across an app window, with every gap labeled in points
The free horizontal and vertical rulers on an app window, reading the pointer position

Requirements

macOS 14 Sonoma or later. Apple silicon and Intel. Current version: 1.0.

Privacy

Nothing leaves your Mac except the license check with Gumroad. Edge snapping asks for Screen Recording permission and only reads a single row and column of pixels through the pointer; nothing is saved or sent.

Questions about your purchase or license key? Reply to your Gumroad receipt or contact us.