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EpicRuler is a design utility tool for macOS and Windows to quickly measure distance, dimension, position, pick colors, test contrast and align on-screen elements, anywhere on your screen.

System Requirements

Before purchasing a license, make sure your system meets the following requirements:

Operating SystemHardware
Windows 10
  • Intel Pentium 4 processor or later (SSE2 capable)
  • 4GB of RAM
macOS 10.10 (Yosemite) or later
  • Apple Silicon processor, or
  • Intel processor that's 64-bit
  • 4GB of RAM


After purchasing a license, you get a download link in email, or you can download the app from the license manager.


When you first start EpicRuler, an activation window will pop-up. At this stage you have to enter your license key and the email address you've used to purchase EpicRuler with to activate the app.