Homebrew (macOS / Linux)

brew tap pavelsimo/homebrew-tap
brew install fascat

pipx (recommended for isolated install)

pipx install fascat

pip

pip install fascat

KTX2 Preview Decode

pip install 'fascat[ktx2]'

Default installs include the Python KTX2 decoder used by browser preview validation when KHR_texture_basisu textures are present on supported Python 3.11+ Linux/Windows x86_64 environments. The ktx2 extra is retained for explicit installs in compatible environments. On unsupported platforms, Fascat falls back to glTF Transform plus KTX-Software when those external tools are installed.

PyPI

Latest release: pypi.org/project/fascat

Verify

fascat version