Aquamacs is an Aqua-native build of the powerful Emacs text editor. “Aqua-native,” means more than just the fact that this version of Emacs runs as a standard OS X application. Aquamacs features extensive customization that enables it to conform better with Apple’s standard Human Interface Guidelines (HIG) than standard versions of the editor do.
For additional information regarding this software, please see this GROK article: Aquamacs Emacs: LSU Overview.
Cyberduck is a open source FTP and SFTP (SSH Secure File Transfer) browser licensed under the GPL with an easy to use interface, integration with external editors and support for many Mac OS X system technologies such as Spotlight, Bonjour, the Keychain and AppleScript.
Darik's Boot and Nuke ("DBAN") is a self-contained boot floppy that securely wipes the hard disks of most computers. DBAN will automatically and completely delete the contents of any hard disk that it can detect, which makes it an appropriate utility for bulk or emergency data destruction.
For additional information about this software, please see this GROK article: DBAN: LSU Overview
FileZilla is a fast and reliable FTP client and server with lots of useful features and an intuitive interface.
For more information about this software, see this GROK article: FileZilla: LSU Overview
To download FileZilla, please go to the FileZilla download page.
OnyX is a maintenance, optimization, and personalization utility. It also makes it possible to configure certain hidden parameters of the Finder, Dock, and Safari, to remove a certain number of files and folders that may become cumbersome, preview the different logs and CrashReporter, and more.
For more information about this program please see the following GROK article: OnyX: LSU Overview
For versions of Onyx compatible with Mac OS X 10.8 or lower, please see the OnyX download page on the provider's website.
RBrowser is a full featured free graphic FTP-SFTP client. RBrowser allows the user to manage/browse files on the remote host with an easy-to-use graphic interface. File management includes move, copy, duplicate, compress, delete,set permissions, make links, etc...
For versions compatible with older operating systems, please go to the RBrowser download page.
The Unarchiver is a much more capable replacement for "BOMArchiveHelper.app", the built-in archive unpacker program in Mac OS X. The Unarchiver is designed to handle many more formats than BOMArchiveHelper, and to better fit in with the design of the Finder. Supported file formats include Zip, Tar-GZip, Tar-BZip2, Rar, 7-zip, LhA, StuffIt and many other more or less obscure formats.
The Unarchiver can be downloaded free of charge from the Mac App Store
Vim is a highly configurable text editor built to enable efficient text editing. It is an improved version of the vi editor distributed with most UNIX systems. Vim is often called a "programmer's editor," and so useful for programming that many consider it an entire IDE. It's not just for programmers, though. Vim is perfect for all kinds of text editing, from composing email to editing configuration files.