Convert pat to pnm Online: pat2pnm

You can use Tom's Editor to easily convert images from
GIMP Pattern .PAT to Portable aNy Map .PNM.
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.

PNM

PNM images are uncompressed 24 bit RGB images. Can cannot store Alpha channel. PNM images come in 2 types: binary and text. Especially popular on Linux.