Excellent List of Open Source Utilities Ever

Well here is a list of the best ever open source utilities for you all. Just try them. The list features Open Source softwares ranging from Multimedia to imaging to security to Animations. If you know more or if you know any alternative please post out in the comment section.

Browsers & Email

K-Melon – Wanna install a browser if you gotta very less disk space. Try K-Melon.
SeaMonkey – No words for this browser if you missed Mozilla Firefox.
Mozilla Thunderbird – This uses the XUL user interface language and an excellent e-mail client.
Nvu – Use this if you are looking for a web authoring tool for Firefox.
Claws Mail – An e-mail client and a newsreader based on GTK+.

Graphics & Animation

K-3D – Its a excellent free 3D modeling, animation and rendering software for Linux, Posix and Win32 Operating Systems.
Inkscape – Best Vector Graphic Editor
Dia – Its GTK+ based diagram creation program inspired by Visio.
Scribus – Its a cross platform Open Source program that can give commercial grade outputs in PDF and Postscript.
Pixie – Very good and handy color picker utility for webmasters and designers.
Potrace – For transforming Bitmap Image into smooth, scalable image.

Desktop Software

AbiWord – Replace MS Word with this excellent utility.
7-ZIp -Throw all compression softwares and just try this.
Azureus – This implements Bit Torrent Protocol using Java and comes for both beginners and expert users.

Security

Clamwin – Best free anti virus for Windows with high detection rates for both viruses and spywares.
WinPooch – A Windows Watch Dog utility that functions as an excellent anti-spyware
TrueCrpt – Very good data encryption software.

Instant Messengers

Speak-Freely – Excellent VoIP Application that enables you to talk over internet.
Jabberzilla – Its a abber Client that Installs into Mozilla-based browser and integrates other internet chat protocols like ICQ, AIM, Yahoo! and MSN.
aMSN – Alvaro’s MSN is a MSN Messenger clone with best features integrated.
WengoPhone – Another Excellent VoIP utility.

Audio Video Softwares

Avidemux – Best free Video Editor for simple cutting, filtering and encoding tasks.
VirtualDub - Video Capture and processing utility with batch processing capabilities.
Democracy – Internet Video player excellent in its class.
VLC Media Player – An amazingly best ever portable video Media Player.