Roman Word Bubbling Tool

This tool is designed to assist in literacy education for students with CVI. It is being developed in cooperation with Dr. Christine Roman-Lantzy who originally developed the technique.

Disclaimer: This is not an official Google Product.

Version 1.1.0

This application uses the following open source projects:
OpenCV (License)
fontdetect by Lalit Patil (License)


This tool is intended to reduce visual complexity by emphasising the shape of the entire word instead of individual letters. Type words in the Text field and the tool will draw a tight, brightly-colored bubble around it.

The defaults were carefully chosen to work for most students. If your student attunes to a different color or font, you can change those in the Edit window. If anything is not working well or you have suggestions, click the feedback button and let us know.

Send Feedback

Feedback sent successfully.DISMISS
This page may take a minute or two to load.
If it fails to load, email romanwordbubbling (at
You can also access the old version at: