Convert pat to psd Online: pat2psd

You can use Tom's Editor to easily convert images from
GIMP Pattern .PAT to Adobe Photoshop .PSD.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

PAT

GIMP Pattern is an image format with extension PAT.

PSD

PSD is in internal image format of Adobe Photoshop. It can store all the features offered by Photoshop, like layers and paths. Images can be compressed or not.