Developer: Giant Comet

Current Version: 1.1

Last Updated: 4 years ago

Download Size: 611.2 KB - Download


Crosshairs is a screen ruler app for quickly getting the dimensions of anything on your screen. You can drag a transparent overlay overtop of any app and adjust the box as much as you need. No more taking a screenshot just to get the size of something.

* Activate/deactivate the app with global hotkey, which is customizable
* Switch between overlay colors
* Dynamically adjust the opacity of the overlay
* Switch between normal and inverted overlay mode
* Copy dimensions directly to your clipboard
* Can customize the format of the dimensions to suit your needs
* Take a screenshot of the area beneath the overlay
* Make pixel perfect adjustments with the keyboard

Keyboard Shortcuts:

Crosshairs is a menu bar app and has a very minimal interface. Most of the app's features are controlled via keyboard shortcuts. Here's a complete list:

* Esc or Command-H = Deactivate app
* Command-Shift-2 = Global hotkey to activate the app
* Arrow keys = Move the overlay by 1 pixel
* Shift + arrow keys = Move the overlay by 10 pixels
* i = Toggle between normal and inverted overlay mode
* Tab = Toggle between the primary/alternate overlay color
* Command + up/down arrow = Increase or decrease the opacity
* Command-C = Copy current dimensions to clipboard
* Delete = Clear the current overlay
* Command-, = Open preferences
* Space = Take screenshot

**Note: when Crosshairs is active, it intercepts all mouse clicks so you can draw an overlay on top of existing apps. Some users have reported this as locking up the system since they can't interact with other apps. When Crosshairs is active, the menu bar icon is blue, to quickly deactivate it, just hit the Escape key.**

You can watch a video of Crosshairs in action to see all its features at

Please contact [email protected] if you have any feature requests, suggestions, or issues.

Follow us on twitter @giantcomet for news and updates about all our apps.


Release Notes:

New feature: inverted overlay mode. Inverted mode fills the background instead of the selected area, and you can still change the color/opacity of the background with the standard shortcuts. Hit "i" to switch between normal and inverted.

All changes:
- Added inverted overlay mode (shortcut: i)
- Made hotkey activate or deactivate app (instead of just activating it)
- Some minor user interface updates to handles and dimensions bubble to help stand out better
- Crosshairs will no longer deactivate the current app so it works better with apps like Photoshop. Side effect is no custom cursor support. Added preference to return the old way if you prefer.
- Added highlight to menu bar icon to show when app is active
- Added in-app help screen that lists all keyboard shortcut
- Left-click in menu bar icon activates app, right-click (control-click) shows menu
- Fixed bugs with color preference settings not taking effect right away
- Fixed bug with taking screenshots on computers with multiple screens being off
- Ensured overlay always snaps to whole pixels, even during screen zoom, for sharpest possible lines
- Now always showing dimensions outside box and removed option


Most Helpful Reviews

Version 1.0
Review by siliconkibou

Great start...exceedingly useful now...and can only get better. - This works great...stays out of your way, and is easy to invoke. The customization of the height and width pasting is also a great feature. One request/suggestion would be perhaps a set (dropdown?) of pasting formats for different scenarios (like height="{h}" width="{w}" for images, or height: {h}px; for CSS, etc.) Also, to the fellow designer/developers out there...this is from the same guy who made Spot Color...which you may know as a great way to pull up the Apple Color Picker at anytime, standalone. I've gotten enormous use out of Spot Color, so even if Crosshairs wasn't useful (and it very much IS), I'd still happily throw some money his way. And "Hues" looks to be a Spot Color+better replacement...count me in for buying that as well, when it arrives in the App Store. Keep up the great work,'ve made my workflow better for years, and I'm grateful.

Found helpful by 3 out of 3 people
Version 1.1
Review by SFhank

Danger Will Robinson! - I'd give it no stars but can't. It locks up my MacPro everytime I use it. I have to do a hard re-boot just to get my system back up. This is total crap. Save your money. Save your system too.

Found helpful by 2 out of 9 people

More Reviews for Current Version

Version 1.1
Review by Mr Toner

A Cut Above - Been using a free app (Rula) for a number of years, but it's now MIA and doesn't like multiple monitors anyway. I needed something just as simple and I found it in Crosshairs. With an alternate overlay, inverted overlay, and support for screen zooming, the developer has thought of things that put this app a cut above the rest.

Found helpful by 3 out of 4 people
Version 1.1
Review by quantumonion

Perfect - If you need to take screen shots with exacting dimensions, this is the app for you. Some say it's not intuitive. Just remember ESC takes you out of the app. Cursor keys move the capture region by a pixel…Wait, this is all in the app's description. Just read the Keyboard Shortcuts section and stop complaining :-)

Found helpful by 2 out of 2 people
Version 1.1
Review by joshintosh

Got it just right! - Just now trying it out and love it already. If you needsomething a bit better then command - shift- 4 because you make measurements all day long, this is the app for you. Also, I think that they used A List Apart as a backgound pushed me over the edge to buy it. The developer must know the needs of a designer if they know about that site! ;) thanks, this will be really helpful. I haven't had a chance to test its accoursy yet, but if I find any problems, I'll post them here. The controls are a lot like command - shift - 4 so its really natural to use. Using the spacebar to make a screen capture is brilliant.

Found helpful by 2 out of 2 people
Version 1.1
Review by Spencer in Portland

Use it all the time - Simple and works well every time. Very useful to measure any areas on the screen

Found helpful by 2 out of 2 people
Version 1.1
Review by Phillip Gore

Perfect - This app is great. I am in the process of creating a web app. Pixel perfection is important to my project and crosshairs let's me quickly check layout no matter what browser I am currently testing. Simple - straigtfoward - perfect.

Found helpful by 2 out of 3 people