List of Free 2D Programs

[Calie]

I did not create this list, however, I can not remember where I got this information from. If someone does know where this list came from please post it in here so proper credit is given for their hard work in creating it.

As of September 30 2011 all links on this list were active.

GIMP
http://www.gimp.org/
http://www.gimp.org/windows/
http://www.gimp.org/macintosh/
http://www.gimp.org/unix/
http://www.gimp.org/downloads/
Mac, Windows, Linux

3 free books about GIMP:
GUM
http://ific.uv.es/informatica/manuales/GimpUserManual_v1.0.0/index2.html
Grokking the GIMP
http://gimp-savvy.com/BOOK/
GIMP user manual
http://www.gimp.org/docs/

Meesoft (ImageAnalyzer and several other programs)
http://www.meesoft.com/
Windows

Project Dogwaffle
http://www.thebest3d.com/dogwaffle/
http://www.thebest3d.com/dogwaffle/free/index.html
Windows

Winmorph(morphing and warping) and Wax
http://www.debugmode.com/
Windows

Irfanview(slideshow viewer)
http://www.irfanview.com/
Windows

Inkscape(vector graphics)
http://www.inkscape.org/
Mac, Windows, Linux

Deep Paint (painting and cloning)
(click "Zum Download")
http://www.chip.de/downloads/c1_downloads_hs_getfile_v1_16395521.html?t=1216622120&v=3600&s=bee660773b10a4bd9f6dfd153bcd0573
Windows

pspi.exe (to run Photoshop plug-ins in GIMP)
You don't need to buy Photoshop to run most Photoshop plug-ins. You can run them using GIMP and pspi.exe .
"The Windows package includes just pspi.exe . Put it in your GIMP plug-ins folder."
After starting GIMP, select Xtns, then select Photoshop Plug-in Settings... and type in or browse to the folder(s) where you are going to keep the 3rd-party Photoshop plug-ins (.8bf files) that you want to use in GIMP and click OK. Then you will find the photoshop plug-ins listed under the "Filters" menu of the GIMP image window after restarting GIMP.
http://tml.pp.fi/gimp/pspi.html

Redfield Plugins, some free photoshop plugins
http://www.redfieldplugins.com/

PhotoFiltre and PhotoFiltre Studio
http://www.photofiltre.com

Optik Verve Labs have created a plugin called VirtualPhotographer so that you can turn your renders into virtual photographs. There are additional settings that you can download too, including 'Audition' which makes a hazy, b&w photo-shoot shot appearance, and 'Yearbook' which gives your picture a lighly contrasted b&w image, as you would see in a yearbook. It works in PhotoShop and Paint Shop Pro, and if you have the PhotoShop Plugin you can also use it in GIMP.
http://optikvervelabs.com/default.asp

Wpanorama, a free viewer program for panorama images (and more than 470 free panorama images)
"With WPanorama you can display panoramic pictures by letting them scroll horizontally or vertically on the screen. You can use this software to view the gorgeous 360 degree Swiss panorama included with the program, the 473 panoramas available on this site or your own pictures in .jpg or .bmp format."
http://www.wpanorama.com/
Windows
Artweaver - Corel Painter type program
http://www.artweaver.de/index.php?en_version
Windows
wood workshop (free wood texture generator program you can save the wood textures made as jpeg,png,tif and bmp)
http://www.spiralgraphics.biz/
Windows

Verse (GIMP plug-in to use GIMP with Blender)
http://users.pandora.be/blendix/verse/old/demo.html
Linux