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Web3D Survey : WebGL 2 : WEBGL_compressed_texture_s3tc

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

Overall Support

83.71%

Platform Support
PlatformSupport
Android23.37%
Chromium OS84.58%
iOS41.97%
Linux92.3%
Mac OS87.34%
Windows99.96%