Zip, 7z, Tar, Gzip and Bzip2 are all included. Keka allows you to compress files in multiple formats.
MAC NAMECHANGER APP UPDATE
Of course if you use it, supporting the developers, either by a donation or buying it in the Mac App Store, will help them continue to update it.
The two versions will be kept in sync, so there'll always be a free option. Unlike Growl, Keka is available both as a paid, US$2 app from the Mac App Store and as a free download from the Keka project site. Keka's been around since 2009, but only recently made it into the Mac App Store. If OS X's built-in compression utility doesn't do enough for you, Keka could be the answer.
MAC NAMECHANGER APP ARCHIVE
Great free archive utilities are pretty hard to come by on the Mac. It's free, so if you're after a file renamer, it's well worth checking out. While it's true you can perform all these functions with Automator's file actions, NameChanger brings swift flexibility to your batch-renaming tasks. You use the drop-down box to select the type of processing you want, type in the characters or select the sequence or date string and hit "Rename." Alternatively, if you want to do it all within the program you can use the "Add," "Remove" and "Clear" buttons on the toolbar. Once you've got that down pat, it's just a case dragging and dropping the files you want modified onto the app. That way you can maintain the original file extensions of the files you're processing. One thing that's not that obvious when you first start out, is that to get NameChanger to ignore file extensions in it's processing of your file name, you have to reach into the Options menu and tick the "Hide Extensions" box. It's a little more complex than the likes of Quick File Renamer but once you get to grips with it, it's a rapid way to process files. It'll allow you to replace parts of a file name, append or prepend characters to existing file names, as well as add dates, sequences or any other regular expression. NameChanger takes on file renaming with aplomb. Automator scripts work will for simple jobs, but if you're trying to do something complex like remove or alter the filename of a great many files, a free tool like NameChanger could be a useful addition to your armory.
Batch-processing files is a great way to save time.