Convert rfg to webp Online: rfg2webp

You can use Tom's Editor to easily convert images from
LEGO Mindstorms EV3 Robot Graphics File .RFG to WebP .WEBP.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

RFG

LEGO Mindstorms EV3 Robot Graphics File is an image format with extension RFG.

WEBP

WebP is an image format with extension WEBP.