Shape Collage - Shape Collage is a photo collage maker software program. Automatically create picture collages in a variety of shapes with just a few mouse clicks. Available for Windows, Mac OS X, and Linux.
Fotor - Fotor is an all in one visual platform. It includes photo editor, collage maker, and graphic designer. You are free to make a visual look more beautiful.
TurboCollage - TurboCollage - photo collage editor software. Make collages, picture piles, picture grids, montages, and mosaics on your Mac or Windows PC. Download a free trial now!
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
PhotoSpills - Easy to use PC collage software with unlimited design possibilities.
GIMP - GIMP is a multiplatform photo manipulation tool.