KTX2 texture converter planning before you encode the set.

Compare source download bytes with the BC, ETC2, or ASTC memory KTX2 will transcode into on the target device.

Open the texture set analyzer

Analyze a complete texture set or ZIP

Choose the real source files instead of entering every width, height, quantity, format, and mip setting by hand. The browser tool reads supported image headers, expands ZIP entries locally, hashes exact duplicates, samples decoded alpha where supported, and calculates each mip level with GPU block rounding.

  • Download size and expanded source bytes
  • RGBA8-equivalent uncompressed GPU memory and exact mipmap overhead
  • Desktop, Mobile, and VR / Quest recommendations
  • BC1, BC3, BC5, BC7, ASTC, ETC2, and KTX2 transcode comparisons
  • Unused alpha, duplicate, oversized-map, normal-format, and ORM packing checks

Run KTX2 Texture Converter Planner

What changes when a texture becomes KTX2?

KTX2 can package GPU-ready formats or a Basis Universal payload for compact delivery and runtime transcoding. It can reduce transfer size and avoid shipping separate platform files, but it does not create one universal VRAM footprint: resident memory follows the BC, ETC2, or ASTC target selected by the device.

Container

KTX2

Common universal payloads

Basis Universal ETC1S or UASTC

Runtime VRAM

Determined by the selected GPU-native transcode format

Treat KTX2 delivery and GPU residency as separate budgets

Use the analyzer to choose dimensions, remove unused channels, and pack masks before encoding. Cleaner inputs improve both the delivered file and the transcoded runtime allocation.

  1. Optimize the source set. Remove duplicates, resize oversized maps, and pack compatible masks before encoding.
  2. Choose a quality mode. Use ETC1S-style delivery for smaller files or UASTC-style delivery when higher quality and faster transcoding matter more.
  3. Validate the transcode target. Check the final BC, ETC2, or ASTC memory and visual quality on representative hardware.

KTX2 Texture Converter Planner FAQ

Does this page encode KTX2 files now?

The current release analyzes the set and prepares the conversion plan. The CTA hands that plan to Texture Doctor; it does not claim that a KTX2 file was created inside the calculator.

Will KTX2 always reduce VRAM?

Not by itself. KTX2 often reduces delivery size and enables platform transcoding. VRAM savings depend on the resulting GPU format, texture dimensions, mip levels, and channel packing.

Do my texture files leave the browser?

No. Texture inspection, ZIP extraction, duplicate hashing, alpha sampling, and memory estimates run locally in the browser. PLAYTEX AI does not upload the files for this analysis.