PNG to ASTC Converter Online
Compress PNG or JPG images into standard .astc texture files directly in your browser. Choose 2D block footprints and quality levels for mobile GPU deployment with complete privacy.
How to Convert PNG to ASTC
Upload your PNG image, select a 2D block footprint (4×4 for high-detail normal maps or 8×8 for balanced compression), set your quality level, and download the compressed .astc texture.
Open PNG to ASTC Converter