Freeware... because the software police will eventually carry mace.

Angry IP Scanner


www.angryziber.com
Mac OSX, Windows, Linux
Angry IP scanner is a very fast IP address and port scanner. It can scan IP addresses in any range as well as any their ports. Useful in analyzing firewall rules and security concerns. It is cross-platform and lightweight.

PDFCreator


pdfcreator
Windows

Every Mac user knows that you can create a PDF directly from any print job in OSX.  But did you know you can get the same functionality in Windows?  Enter PDF Creator.  A free tool which will act as a virtual printer, and create PDF files from any print job.

Transmission


www.transmissionbt.com
Mac OSX
My favorite Bittorrent Client. Extremly Lightweight with just the right amount of features.

Free Ruler


pascal.com
Mac OSX
The name says it all. Measure things in pixels, inches, etc with this nice looking screen ruler. Found it helpful for object placement in web development. And in the creation of object reports for powerschool.

JumpCut and Clipboard Buddy


Clipboardbuddy
Mac OSX, Windows
Both programs are what is commonly called clipboard-buffers. This means they will quietly sit in the background on your computer and store things that you cut or copy to the clipboard. After using one for a bit you will find yourself wondering how you ever got by with only copy/pasting one bit of text at a time. JumpCut is for OSX and Clipboard Buddy is for Windows.

SeaShore


seashore.sourceforge.net
Mac OSX
Seashore is an OSX native image editor based on the popular unix program GIMP.  The program has the look and feel of Photoshop Elements,  and shares many of photoshop's features such as: layering, alpha masks, and channels.  Files can be saved as TIFF or JPEG.  Great for middle school classes that want to do more advanced image editing.

Wink


www.debugmode.com
Windows, Linux
One piece of freeware I really wish they made for Mac. Wink is a Tutorial and Presentation creation software, primarily aimed at creating tutorials on how to use software (like a tutor for MS-Word/Excel etc).  Since you can save in flash format Wink makes it extremely simple to publish your tutorials to the web.

Mouse Locator


www.2point5fish.com
Mac OSX
Great for presentations or demonstrations on the computer. Mouse Locator will put an target graphic around your mouse cursor whenever a set hotkey is used. You can set the duration, intensity, and hotkey combination.  In addition, Mouse Locator allows you to chose which graphic is used and weather or not mouse clicks should be highlighted.

MorphX


www.norrkross.com
Mac OSX
Use Norrkross MorphX for calculating images or movies where one image transforms into another. Simply drag 2 images to the document window, drag a few lines to indicate similar areas and Norrkross MorphX calculates images so that it looks like the first image magically is transformed into the other. You can save the morph as as still image snapshot or as a full animated QuickTime movie.

iStache!


freemacware.com/istache
Mac OSX

This programs sole purpose is to help putting staches on your photos. Nice!

KeyPass


keepass.info
Mac OSX, Windows, Linux
A lightweight open source password manager.  The perfect way to keep track of passwords and other sensitive notes.  KeePass is a strongly encrypted database which is searchable, portable, and is unlocked with a single master password or password disk (for the 007 types).

JumpCut and Clipboard Buddy


Jumpcut
Mac OSX, Windows
Both programs are what is commonly called clipboard-buffers. This means they will quietly sit in the background on your computer and store things that you cut or copy to the clipboard. After using one for a bit you will find yourself wondering how you ever got by with only copy/pasting one bit of text at a time. JumpCut is for OSX and Clipboard Buddy is for Windows.

MAMP and WAMP


www.mamp.info
Mac OSX
The ultimate web programming and design test tube.  Both WAMP and MAMP are self-contained environments running Apache, MySql, and PHP.  Meaning you can develop "traditional" websites and/or complex CMS web portals from the comfort of your personal computer. No knowledge of setting up web servers is required. WAMP is for Windows, and MAMP for Mac folk.

Njam


njam.sourceforge.net
Mac OSX, Windows, Linux
Njam is a full-featured cross-platform pac-man-like game

GIMP


gimp.org
Mac OSX, Windows, Linux
The GNU Image Manipulation Program. Or as I like to think of it as the open source equivalent of Photoshop. It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. It works on many operating systems, in many languages.

SpamPal


www.spampal.org
Windows
An in genius open source program which works to filter out spam email on your Windows computer.  The program works by actively monitoring traffic coming into the POP and IMAP ports, and therefore does not need to be setup for a specific email client (making the setup very simple and effective).

Smell-O-Mints


www.jschilling.net
Mac OSX
The periodic table of elements never looked so good. With an aqua and brushed metal interface, this periodic table will display basic characteristics of each element when you click on them.

QuickSilver


blacktree.com
Mac OSX

Possibly my favorite utility ever created for OSX.  It is hard to describe what the program does exactly.  But I guess it could be called a application launcher.  Basically you press the specified shortcut key, and then start typing the title of what you want to launch be it a program, address book entry, bookmark, etc.  Sounds simple, but it can have a big impact on the way you navigate OSX.

Perian


www.perian.org
Mac OSX
Help Quicktime be all that it can be with Perian. This utility will allow Quicktime to play a wide range of video formats it otherwise would not support, like the popular DivX.

TextWrangler


barebones.com
Mac OSX
A free scaled down version of the popular BBedit program. A big help for projects that require a pure text editor (one that does not apply formatting), such as unix scripting, javascript, plist editing, or HTML coding.  See their site for the long list of features.

HandBrake


handbrake.fr
Mac OSX, Windows, Linux
A program to rip DVDs to MPEG-4 video (or MP3 audio). Useful if you ever wanted to take your videos on the go without bringing the disk. Also handy if you want to cut a video or audio clip out of a movie and us it in a project.

SyncBack


www.2brightsparks.com
Windows
A simple yet powerful backup utility for Windows.  Can be used to backup or synchronize critical folders to backup drives, or network shares.  Contains many advanced options like email notifications, encryption, compression, filtering, and will even close active programs if you like.

Camino


caminobrowser.org
Mac OSX
Camino is an OSX only web browser which combines the look of OSX with the Gecko rendering engine (used by Firefox). Definitely worth a look.

Firefox


mozilla.com
Mac OSX, Windows, Linux

Probably the most widely recognized open source program, Firefox is a very secure and versatile web browser. Some of my favorite classroom add-ons to Firefox include: adblock menu editor public fox. And if you ever need a hand with something there is a great support community at mozilla.com.

MacTracker


mactracker.ca
Mac OSX, Windows
A helpful program for people in charge of maintaining or repairing Apple products.  It is basically a database of all the specifications for every Apple product ever made. Constantly updated with new products by the developer.

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