Below is a growing list of free mockups you can download for your surface pattern designs. All of them require Adobe Photoshop and although some require an email address in order to download the file, many do not.
Also, keep in mind that many of free mockups require attribution or “credit to the designer” in order for you to use them in your portfolio or look book. Finally, these are just a small sample of free mockups on each of these sites. Browse around to find 100s more. Enjoy!
From Creatsy
Bolts of Fabric
From Creatsy
Summer Dress
From Pixel Buddha
Picture Frame
On Behance
Pillow & Wallpaper
From FreePik
Beach Chair
From Free PSD Templates
Fabric Swatches
From PixPine
Printed handkerchief
From Raw Pixel
Wallpaper mockup
From Raw Pixel
Totebag
From Creatsy
Totebag 2
From Creatsy
Bed Linens
From Pixel Buddha
Blanket
From FreePik