KLayout supports both Intel and Apple Silicon (M1/M2/M3/M4) Macs.
Navigate to the "Mac OS" section on the Download Page. Select the .dmg file that matches your operating system (e.g., Sequoia, Sonoma, or Ventura). klayout download mac
While sites like Softonic offer downloads, it is always safest to download directly from the official website or GitHub to ensure you have the most secure and up-to-date version. System Requirements & Compatibility KLayout supports both Intel and Apple Silicon (M1/M2/M3/M4)
KLayout is a powerful, open-source mask layout viewer and editor essential for anyone working with GDSII, OASIS, and LEF/DEF files. For Mac users, getting this high-performance tool running requires choosing between pre-compiled DMG packages, package managers like Homebrew, or building from source for the latest features. How to Download KLayout for Mac While sites like Softonic offer downloads, it is
Native ARM64 (Apple Silicon) builds are available for newer OS versions. For older versions, x86_64 DMG files can run on Apple Silicon via Apple's Rosetta .
The most straightforward way to get KLayout is via the official KLayout Download Page . As of May 2026, the current stable version is , which supports a wide range of macOS versions.
Official support currently focuses on macOS 15 (Sequoia) , with experimental support for newer versions like macOS 26.1 (Tahoe) .