A lot of digital cameras are great for taking photos, but pretty shoddy for naming files. Sure, it's alright to have them listed by date and time -- at least that keeps them in order -- but we think it's a lot nicer to rename a batch of photos so you remember what they're actually of. That's where NameChanger comes in. It's a lightweight renaming app for OS X, with a focus on images.

NameChanger can append, prepend, replace, or rename all kinds of files with whatever input you give it, but it really shines when it comes to pictures. Drag a batch into the image browser, switch to sequence mode, and "DCP_16739" becomes "Hawaii01," or whatever you want it to be. Let NameChanger keep the numbers straight for you. And, at a tiny 1.9mb, you probably have pictures that take up more disk space than this useful little app.