Open the KTX2 encoder, upload a PNG or JPG image, choose between UASTC and ETC1S compression modes, configure quality and optional mipmap generation, and download your encoded .ktx2 texture file.
PNG to KTX2 Converter Online
Encode PNG and JPG images into modern .ktx2 texture containers directly in your browser. Select ETC1S for smaller file size or UASTC for detail preservation in WebGPU, Vulkan, and Three.js pipelines.
How to Convert PNG to KTX2
Upload your PNG or JPG image, select ETC1S or UASTC compression mode, configure quality and mipmap options, and download your encoded .ktx2 texture.
Open PNG to KTX2 ConverterPopular search questions
Choose ETC1S when lower file size and bandwidth savings are the main priority. Choose UASTC when detail preservation is important, such as for normal and PBR maps. Because runtime transcode targets differ across GPUs and platforms, actual visual results should be compared directly in your target pipeline output.
Converting PNG to KTX2 is an active texture encoding process: it compresses raster pixels into supercompressed Basis Universal texture blocks (ETC1S codebooks or UASTC blocks). It is not a simple file container repackaging.