Advanced PNG optimization program
Display, convert, and edit raster image and vector image files
Various small and useful command-line utilities
Drawing, graphics conversion, software development, administration.
Convert BMP images into Sixel images
Convert Netpbm programs to GIMP plug-ins
Extend abcm2ps to support direct generation of PNG, SVG and PDF files
Open Source Solid Modeling CAD
A C99 implementation for reading/writing WMF and EMF Graphic Metafiles
Transforms bitmaps into vector graphics
Convert JASC pal files to png.
The Utah Raster Toolkit 3.0, patchlevel 2
A cross platform utility for packing images onto a single sprite sheet
Texture compression and conversion program with KTX and DDS support.
Image converter for producing ZX Spectrum screens
Convert jpeg(exif/jfif)/mpo/jps image to/from xml