KTX2 Viewer

Drop a .ktx2 file into this page to see what is actually inside it. The file is decoded and rendered in your browser — it is never uploaded anywhere.

• Preview the decoded texture at full resolution
• Read its width, height and aspect ratio
• Count the mipmap levels stored in the file
• See which GPU format it transcodes to on your machine (ASTC, BC7, ETC2, …)

What is a .ktx2 file?

KTX2 is the Khronos container for GPU-ready textures. It usually holds Basis Universal data (ETC1S or UASTC) that is transcoded at load time into whatever compressed format the viewer's GPU supports, which is why the same file works on desktop and mobile. It is the texture format used by the KHR_texture_basisu glTF extension, so most .ktx2 files come out of a 3D asset pipeline rather than an image editor — and normal image tools cannot open them.

Also here

Need to inspect a whole model instead? Open the glTF / GLB viewer — it reads .glb and .gltf files, plays their animations and shows meshes, materials and draw calls.

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