Browse folders and archives
When you open an image in Xee, it will also scan the same folder (and, optionally, subfolders) for further images. You can then quickly browse forward or backward in the folder, and Xee will flip through all the images, without having to open each one yourself.
Xee will also optionally resize its window to best fit your images on the screen.
Xee can also browse the contents of archive files, like Zip, RAR or 7z files. In fact, it can browse any format that The Unarchiver supports. This also applies to comic book CBZ and CBR files.
Xee has extensive support for touch controls. You can of course scroll and resize images with touch gestures, but you can also swipe between the images in the same folder or archive. You can even configure different sorting orders for horizontal and vertical swipes. Rotating images with gestures is also supported.
Move, copy and delete images
Xee is useful for sorting through and arranging image files. It will let you quickly copy and move images to other folders. It also has a list of previously used destinations, to allow you to move images as quickly as possible.
You can also delete and rename images, open them in an external editor, or mark them with Finder labels from inside Xee.
Image file formats
Xee supports all the standard image file formats that most OS X apps do: JPEG, PNG, GIF, TIFF, raw camera images, and so on. However, it also supports a number of formats beyond those: It supports the new APNG and WebP formats fully, and it supports many older formats: PCX, both Amiga and Maya IFF files, MSX MAG and MKI files, Unix PNM, XBM and XPM files, and Dreamcast PVR and PVM files.
It also supports animated GIF, APNG and WebP files. It will also animate stereoscopic MPO files to give them a slight 3D effect.
It will even try to load bitmap images hidden inside PDF and Flash SVF files, and it will let you see individual layers of PSD files.
Multiple window styles
Xee will let you change the graphical style of its windows. This can be useful when you are viewing photos, and want the surrounding window to be less distracting. There are currently three visual styles available.