Apps similar to Compressonator include NVIDIA Texture Tools Exporter, which is open source and free for personal use. Other options are todds and TexconvGUI. In total there are three File Compressors like Compressonator for Windows, Linux and Mac.
Allows users compress texture files, smaller in memory mostly in DXT1-BC1 to BC7 in *.dds format.
Support: preview, cube & normal maps, mipmaps, transparency Over 130 import formats.
The standard in free GUI DXT dds compression tools for free.
todds is a CPU-based DDS encoder optimized for fast batch conversions with high encoding quality. It currently supports PNG as the input format, and BC1, BC3 and BC7 DDS files as output format.
