Sketch - Professional digital design for Mac.
Simply Framed - Delightful mail-in custom framing
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Framepop - Turn photos into framed prints
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Mountary - On-demand framing and amazing DIY frame kits