Alternative software

Software, can't leave without them, they're making our computers actually useful instead of a plastic/metal mass. However sometimes not everyone have the money to pay for software and piracy is illegal (as it should). The solution is alternative software, they're free, cross platform (most of them) and more community-driven. Today I am going to write down a list with alternative software starting from very essential things such as an Operating System to  specialized programs, so expect this list to be updated.

Let's start...

Operating Systems:

Linux distribution, BSD (i won't say which exactly because you'll have to find what suits your needs, a good site to choose your Linux or BSD distribution is this one

Office suite:

LibreOffice, OpenOffice

PDF reader:

Foxit PDF reader, Evince

Archive manager:

7zip

Media Player:

VLC, MPC, Banshee

ImageViewer:

InfranView, gThumb

Image manipulation/Illustratiors:

Gimp, Inkscape

Video manipulation:

OpenShot, Avidemux, PiTiVi

3D design:

Blender

Internet browser:

Chromium, Firefox, links2, w3c

Email clients:

Thunderbird, mutt

IRC Clients:

Xchat, Hexchat, irssi

VoIP:

Jitsi

Instant messenger:

Pidgin (it's a multiprotocol lightweight IM)

Torrent:

Transmission

Telnet/SSH:

PuTTy, KiTTy, OpenSSH

FTP client/server:

FileZilla, vsftpd

Antivirus:

ClamAV (there are many free antiviruses but because the antivirus subject can go deep i will only reffer to ClamAV

Disk cloning:

CloneZilla

Disk managment:

Gparted

Encryption:

TrueCrypt

Virtual Machine:

Virtualbox, Virtualbox-ose

Hardware monitoring:

Conky, CPU-Z, SpeedFan, Speccy

Network monitoring:

Wireshark, iftop

GIS (geoscientific analysis):

GrassGIS, PostGIS, QGIS

Mathematical Analysis:

SageMath, GNU Octave

CAD:

FreeCAD

Now i'll reffer to some alternatives for online services such as facebook, youtube etc, not because they're paid but because users/members don't agree with their policies.

Search engine:

duckduckGo

Social networking:

Diaspora/joinDiaspora

Social media:

I'll simply reffer to this site which lists websites based on mediagoblin. I know they're not fancy like YouTube but it need to start from somewhere.

I hope you found the article useful and actually try some of them. I know they're not fancy programs,services like facebook, youtube, photoshop, autocad etc etc.. but they're free, they contain a serious amount of features and most importantly, nothing will survive without our support, we've seen where monopoly leads to.