PhotoJoiner lets you join multiple photos vertically, horizontally or in a grid to make a photo collage.
Using PhotoJoiner is very simple, just select the photos you want to join, select how you want to join them horizontally, vertically or in a grid and save the joined image on your computer or share it directly onto Facebook or Twitter.
PhotoJoiner also allows you to set margin between joined images and fill that with a color of your choice. You can also choose to make all images of the same size based on smallest or the largest image of the lot.
You can change the position of the images in the collage by clicking on little white arrows and move images left/right or up/down.