From FreeGameDevWiki
Free/open source software for creating and/or editing two-dimensional images.
2D image editing programs and tools
Bitmap image editing
Bitmap image editing software
| Application name/link
| Specialization/details
| License
|
| GIMP
|
| GPL
|
| JDraw
| Pixel art
| GPL
|
| Krita
| Part of KOffice
| GPL
|
| mtPaint
| Pixel art
| GPL
|
| Tile Studio
| Tile-based pixel art
| MPL
|
Vector image editing
Vector image editing software
| Application name/link
| Specialization/details
| License
|
| Draw
| Part of OpenOffice.org
| LGPL
|
| Inkscape
| Vector drawing application
| GPL
|
| Karbon14
| Part of KOffice
| LGPL
|
| sK1
|
| GPL
|
| Skencil
|
| GPL
|
| Synfig
| Vector based animation
| GPL
|
| XaraXtreme
| Linux vector drawing application
| GPL
|
Bitmap to vector image tracers
- AutoTrace
- Aimed at being similar to CorelTrace or Adobe Streamline, GPL
- LineTracer
- For sketches and line art, with GUI, win-only, MPL 1.1.
- Potrace
- General tracing app, integrated in Inkscape, GPLv2+.
Procedural image generation
- FxGen
- Texture and effects generation, vector export, GPL/LGPL.
Plug-ins and scripts
GIMP
- GIMP normalmap plugin
- Converts images into RGB normal maps.
- Liquid Rescale GIMP plugin
- Content-aware (liquid) rescaling
- The Texturize plugin for The GIMP
- Texture generation from small sample images, texture tiling
