7-Zip
7-Zip is a free file archive manager that supports many different formats, including ZIP and RAR.

Windows

Audacity
Audacity is a free sound editing and recording application.

MacWindowsLinux

AVG Anti-Virus
AVG Anti-Virus Free Edition is an anti-virus application that rivals commercial version such as Norton.

Windows

Blender
Blender is a 3D modeling and animation program.

MacWindowsLinux

Deluge
A lightweight cross-platform BitTorrent application that has plugin support.

MacWindowsLinux

FileZilla
FileZilla is a cross-platform FTP client that supports secure file transfer.

MacWindowsLinux

Firefox
Firefox is an excellent free browser that provides a much more secure and friendly browsing experience that Microsoft Internet Explorer.

MacWindowsLinux

Foxit Reader
Foxit Reader is a lightweight alternative to Adobe's Acrobat PDF reader.

Windows

GIMP
GIMP (The GNU Image Manipulation Program) is a free image editor similar to Photoshop. It can be used for things like photo retouching, image composition and image authoring.

MacWindowsLinux

Google Earth
Google Earth combines satellite imagery, maps, terrain and buildings onto a 3D globe that you can move around.

MacWindowsLinux

Google Pack
A one-stop software package that helps you discover, install, and maintain a wide range of essential PC programs.

Windows

Handbrake
Handbrake is a DVD ripping application, allowing you to convert a DVD to a video file.

MacWindowsLinux

Inkscape
Inkscape is an open-source vector graphics editor similar to Adobe Illustrator or Corel Draw.

MacWindowsLinux

Miro
A video player with access to over 1000 Internet TV channels.

MacWindowsLinux

NVu
A complete Web Authoring System that rivals programs such as FrontPage and Dreamweaver.

MacWindowsLinux

OpenOffice
OpenOffice is a free and full featured alternative to Microsoft's office suite.

MacWindowsLinux

Opera
An award winning free Web browser that is a very fast and feature packed.

MacWindowsLinux

Paint.NET
A fully featured but easy to use image editing application.

Windows

Picasa
Picasa is a free application from Google that lets you organise and share your digital photos.

Windows

Pidgin
Pidgin, formerly known as Gaim, is a multi-protocol instant messenger client, working with Yahoo IM, AIM, Google talk, MSN and others.

WindowsLinux

SciTE
A feature packed text editor with many advances features for programmers.

WindowsLinux

Scribus
Scribus is a Desktop Publishing (DTP) application which can be used to create professional quality documents.

MacWindowsLinux

Skype
Skype allows you to make phone calls from your computer - to other skype users for free, and very cheaply to phones and mobiles.

MacWindowsLinux

Thunderbird
Simple and lightweight email and news application.

MacWindowsLinux

VLC media player
VLC is a media player that supports many different audio and video file formats.

MacWindowsLinux

WinSCP
A simple FTP and SFTP client for Windows.

Windows

µTorrent
µTorrent is the most popular BitTorrent P2P application for windows.

Windows