CrossHair
A menu-bar toolkit for pixel-precise work. A fullscreen crosshair, a circular pixel loupe, persistent on-screen guides, and a screen ruler — each one a keystroke away, and gone the moment you're done.
Or pick it up along with over twenty other apps — CrossHair is included in my bundles.
What it does
Fullscreen crosshair
⌘⌥X drops a thin pair of lines crossing at the mouse. Follows the cursor across the screen. Esc dismisses. Lines stay 1px no matter how big your display is — surgical, not decorative.
Pixel loupe
⌘⌥L opens a circular zoomed view centered on the cursor, with a pixel-accurate grid. 1/2 size the glass, ‹/› (or +/−) zoom, P toggles the grid. Arrow keys walk the reticle one source pixel at a time so you can land on an exact pixel.
On-screen guides
⌘⌥G for laser-thin alignment lines you can drop anywhere and leave on screen. Drag to reposition, arrow-nudge by the pixel, undo with ⌘Z. Lock them and they go click-through — they stay visible while every click and keystroke passes to the app underneath. Persist across launches. Press G in the loupe to drop a pair right at the magnified pixel.
Screen ruler
⌘⌥M to measure anything on screen. Drag out a line and read the length in points — hover to flip to pixels. Click once inside a flat-colour region and Measure auto-fits a cross to the full width and height of that band: a button, a margin, a sidebar, sized in one click.
Quiet by default
Lives in the menu bar — or hide the icon entirely and run on hotkeys alone. Every shortcut is rebindable in Preferences. Tiny binary, instant launch, no background services.
Native Mac
Built in SwiftUI and AppKit — no Electron, no web view, no bundled browser. A universal binary that launches instantly and sips memory, following the platform's conventions: menu-bar item, native shortcut glyphs, light and dark out of the box.
Screenshots
Get CrossHair
Free trial, then a one-time license. Requires macOS 14 or later. Buying more than one app? CrossHair is included in my bundles, along with over twenty other apps.
Support
Questions, bug reports, or feature requests? Email ben.dansby@gmail.com and you’ll get a reply, usually within a day or two.
Looking for a feature walkthrough? See the documentation.
For privacy questions, see the privacy policy.