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Dev tools · June 13, 2025

Free KTX viewer

After repeated attempts to find an easy/quick way to view KTX files across different platforms, I gave up and built my own. Currently only KTX1 supported for 2D textures and cubemaps. I'll probably add support for KTX2 and mipmaps soon. Everything is done locally so no data leaves your browser.

Free KTX viewer launched on June 13, 2025 with 10 votes, #2,717 of 7,999 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 1 year on.

What it does

After repeated attempts to find an easy/quick way to view KTX files, I gave up and built my own. Currently only KTX1 supported for 2D textures and cubemaps. I'll probably add support for KTX2 and mipmaps soon.

View KTX and KTX2 texture files online in your browser. Files stay on your device. Expanded KTX2 support is now available, including Basis Universal, Zstandard, ZLIB, uncompressed textures, BC1–BC7, ETC/EAC, and KTX2 ASTC software decoding. Other GPU-compressed formats depend on browser support. Some packed formats and color spaces are not yet supported. The viewer requires WebGL2 and WebAssembly. KTX (Khronos Texture) is a lightweight file format for OpenGL and Vulkan textures developed by the Khronos Group. It's designed to store textures in their GPU-ready format, eliminating the need for runtime conversion and providing optimal loading performance. KTX files can contain 2D textures,…from ktxviewer.com

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