IceClean is a system created to help you solve maintenance and optimization problems using built-in Unix system tasks to help your Mac stay healthy and also to keep it running as smoothly as possible.

All UNIX systems (including Mac OS X) have a set of maintenance scripts that automatically run every day, week, and month. On old mainframes that were always left on these scripts were sure to run without fail, but on a Powerbook that’s on and off, open and closed, these scripts may miss their schedule. MacJanitor will run these scripts (manually) so you can be sure the maintenance gets done.

0xED is a hex editor. This means it can edit files at the “byte” level — byte by byte. Fast editing of large files, Unlimited file size (limited by what the actual file system supports), Small memory footprint, Instant opening of files of any size, and more.

AppFresh is very useful free tool that keeps all applications on your Mac up to date by checking the internet for new releases and makes downloading and installing them a breeze.

coconutBattery is a tool that reads out the data of your notebook-battery (iBook/Powerbook). It gives you live feedback, what’s going on in your battery (not only a snapshot like other tools). It shows the current charge of your battery as well as the current maximum capacity related to its original.

DMG Canvas builds disk images from template documents that you create. Simply design your disk image’s appearance using the graphical editor and click Build.

SiteSucker is a handy Mac freeware that lets you quickly and easily download websites from the Internet for viewing at your leisure offilne. It copies pages, images, backgrounds, movies, — pretty much everything right to your Mac.

Isolator is a small menu bar application that helps you concentrate. When you're working on a document, and don't want to be distracted, turn on Isolator.

pkgSummaryOfApps is a free and simple to use bash script that gives you a summary of what apps from a package were installed under /Applications or /Applications/Utilities according to the package's "bom" (bill of materials).

TerminalColours is a free and easy to use SIMBL plugin for Leopard’s Terminal that will allow you to customize the Terminal ANSI colours on a per-profile basis. Requires "SIMBL" to use.

When you normally delete your files in Mac OS X, the operating system is only forgetting where those particular files are placed, while the data still physically remains on the drive. This utility overwrites your data thirty-five times, scrambles the original file name, and truncates the file size to nothing before Permanent Eraser finally unlinks it from the system. Once your data has been erased, it can no longer be read through traditional means.

SIMBL (Smart InputManager Bundle Loader) - pronounced like "symbol" or "cymbal" allows you to build hacks for Cocoa applications and apply the code selectively based on an application's unique identifier. It's not really all that clever, or even smart, but it's smarter than just blindly loading code into an application.

Alert Maker is an application used to write text alerts. When you want to run an alert, you just write and run your alert. Choose your alert image, the title and the alert message and you’re ready to run the alert.

TerminalTabSwitching is a free SIMBL plugin that will allow you to change between the tabs of a Terminal window using CMD 1-9. Required SIMBL to use.

CD Cover Tool is a tool for downloading and printing CD covers. Simply drag and drop your MP3's, organized by folder, onto CDCoverToolUse existing image files, or download new CD covers automatically.

StuffIt Expander gives you access to virtually any file you download from the Internet or receive in your email. Expander can handle just about any type of file that comes your way, regardless of whether it was created on a PC or Mac. Download is for OS 10.4 or later. OS 10.3-10.3.9 here (http://my.smithmicro.com/downloads/files/stuffit_exp_1002_install.dmg).

AppMenuBoy is a small Cocoa application that creates a hierarchical menu, in the dock, and when it is the frontmost app, in the menu bar, of your apps. It only shows apps. If a folder has a single app, it hoists the app up, so no subfolders of exactly one app.

MacFUSE implements a mechanism that makes it possible to implement a fully functional file system in a user-space program on Mac OS X (10.4 and above). It aims to be API-compliant with the FUSE (File-system in USErspace) mechanism that originated on Linux. Therefore, many existing FUSE file systems become readily usable on Mac OS X.

A flexible, open-source printer setup system. Released for the benefit of system administrators and unix savvy users using CUPS, on OS X. An addition to Bonjour print queue management. Use a combination of location, user, time to control printer queues.

An application that makes use of the standards based PPTP or L2TP IPsec VPN server installed with Mac OS X. This VPN server is usually only available on Mac OS X Server and configured through the Server Admin application. iVPN makes it possible to use the same server utility on the client version of Mac OS X.