Convert gbr to png Online: gbr2png

You can use Tom's Editor to easily convert images from
GIMP Brush .GBR to Portable Network Graphics .PNG.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

GBR

GBR are images that can be used as brushes in GIMP image editor.

PNG

Portable Network Graphics is an image format with extension PNG.