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Web3D Survey : WebGL 2 : WEBGL_compressed_texture_s3tc

More details: Developer Docs (MDN) Specification (Khronos)

Overall Support

80.11%

Platform Support
PlatformSupport
Android20.6%
Chromium OS85.06%
iOS31.54%
Linux92.39%
Mac OS77.57%
Windows99.93%