MyCollages

Three steps make up the whole process here: upload photos, choose a template, save the result. Templates go beyond even grids — there are rectangular layouts, templates built from custom shapes, a generator and photo frames — and anything ready-made can be replaced with a layout you build yourself.

The builder does some of the arranging for you. It suggests five layouts matched to the number of photos and their proportions, sorts images by what fits so portraits land in tall cells and group shots in the large ones, and shifts and zooms each crop so a face stays whole inside its cell. Bursts of near-identical shots get marked as duplicates, and one press keeps the best of them. Manual control is there too, with columns and rows, draggable borders, and cells you can merge or split.

The finished collage saves at any size, for social media or for print, in one click and without a watermark. The service is free and needs no sign-up.