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ScreenRuler helps you with reading by colouring (tinting) the screen or providing a reading toolbar.

Trials and Demos

Download 15-Day Trial of ScreenRuler for Windows PC
Download 15-Day Trial of ScreenRuler for Mac


Screen tinting
Some people find common black-on-white text hard to read, and prefer off-white colours. ScreenRuler can provide a coloured overlay for the whole screen so everything is tinted and easier to read. You can choose any colour you like and change colour and intensity depending on the time of day, the light conditions and what you find best.
Coloured reading ruler
Some people find focusing on the current line of text hard, and going from one line to the next as you read even harder. ScreenRuler can give you a strip or ruler across the screen. You can also make the screen outside of the strip darker to help you concentrate on the strip.
A coloured underline that goes across the screen and follows the cursor, helping you to stay on the line you're trying to read and concentrate on.
Works with multiple monitors and any video card. Sits quietly in the system tray (Notification Area) out of the way while you work.
Available for Windows PC and Apple Mac OSX.

Help and Documentation

ScreenRuler Suite for PC

User Guide
Complete user manual.
Technical Support
Technical Support website articles.
Data Sheet
Detailed description of features.

ScreenRuler for Mac

Help Manual
Complete help file.
Technical Support
Technical Support website articles.


Life Changing App

"I do lots of screen reading. I have always functioned much better with a straight edge when I read. Some might call it dyspraxia. What ever the maladay, I have it. This app is magnificent, a game changer for me. Thank you, thank you, thank you."

System Requirements

ScreenRuler Suite for PC

  • Windows 10, Windows 8/8.1, Windows 7 SP1, Windows Vista SP2
  • 1GB RAM
  • 20MB hard disk space

ScreenRuler for Mac

  • Mac OSX 10.9 or later
  • 45MB hard disk space

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