Convert ipt to psd Online: ipt2psd

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

Go to Tom's Editor

IPT

Interpaint Multicolor is an image format with extension IPT.

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.