MoreSpace Folder Compression
By Andras Porffy
Open the Mac App Store to buy and download apps.
Save disk space with MoreSpace HFS+ folder compression without creating compressed archive files.
HFS+ compressed files will remain at their original location and can be used as before. With MoreSpace applied HFS+ compression there is no need to create separate compressed archive files.
MoreSpace app using Apple HFS+ compression technology was introduced in OS X 10.6 Snow Leopard. This compression method also used by Apple to reduce size of OS X system files.
OS X will automatically decompress HFS+ compressed files on access, there is no need to manually extract them. When the compressed file(s) being modified or copied, OS X will store them uncompressed.
Finder will show the original (uncompressed) file size of HFS+ compressed files, the occupied space difference shown in MoreSpace app and free space available value in Finder.
◦ Add Folder: Apply compression to selected folders and it's subfolders
◦ Compress Mail: Open and select Mail folder and apply compression to mailboxes
◦ Refresh: Check compressed folder and reapply compression to modified and new files
◦ Decompress: Decompress all HFS+ compressed files in folder and remove from list
HFS+ compression has the best effect on uncompressed file formats like text and data documents, databases and mailboxes. A typical Mail mailbox size can be reduced up to 50%.
File types that already compressed, like jpeg, compressed videos, zip archives will be not compressed by MoreSpace.
MoreSpace will show the list of compressed folders compressed by MoreSpace.
When you start MoreSpace it will scan previously compressed folders, and will detect changes. It will follow folders moved within the same volume.
If you copy compressed files to another folder or volume, they will be uncompressed at new location.
Compressed files can be shared on network.
What's New in Version 1.0.1
◦ Fix on displaying volume icons
◦ Latest OS X compatibility
This program seems to use built in OS compression that Apple introduced in Snow Leopard. You can enable it yourself, but you have to muck around in the command line. For me, the price is wholly worth the convenience. It seems to do the same thing as Clusters but at $11 less. I got 8 gb of space back from my documents, mail and applicatons folders which, on an SSD, is meaningful.
I would normally be worried about using a cheap program on the file system, but again it seems to just be enabling a feature that's already built into the OS. In conclusion, so far so good.
Should work in the background
It does what's advertised, so I guess I don't feel that I'm entitled to a total refund. But the program does not automatically compress contents you add to a folder that's in it's list. You have to manually go back and update the folder, which then recompresses the WHOLE THING, not just the changed items. It would be great if it ran in the background and compressed the folder on the fly. Oh well, $5.
For me saved 4.6 Gbytes just on my mail folder, great App.
Must have if your Mac has SSD!
Subfolder compression works fine, but only if you didn't already compressed parent folder. (so you can't compress twice the same data)
Feature requests: folder drag & drop from finder