Eh, I just finished and started this today, and I decided to post it. What it does is place images in a 256 x (An amount you specify) texture for use with matrix tiles and such. Kinda useful. anyway, here it is.
Here's a screenshot of the short interface:
And here's one of a combined tileset I made using this program:
Click the red download button at the end of this post.
Updates to it will be posted in other posts, if needed.
Place the EXE file in the same directory as your textures, and you will be allowed to scroll through them in the program.
FILE TYPES SUPPORTED:
JPG
PNG
BMP
DDS
TGA
-It's not much, but Enjoy.