KLayout - Your Mask Layout Friend

View

Fast and accurate viewing of huge layout files

Edit

Draw, modify and transform hierarchical layout

Generate

Script layout generators, PCells and layout transformation tools

Analyze

Search, verify, measure layout and code analysis scripts

Intro

Recent Events

2025-09-17 Thanks @kazzz for the new DMG's. Your support is appreciated! (DMG naming convention for 0.30.4 by @kazzz)
2025-09-12 I'm happy to announce 0.30.4 release with a number of useful enhancements and bug fixes (Release notes)
2025-08-10 MacOS DMGs for 0.30.3 are available - thanks as usual to @kazzz for providing them! (DMG naming convention for 0.30.3 by @kazzz)
2025-08-07 A new minor release 0.30.3 is available with new features and bug fixes! (Release notes)
2025-06-06 Dear @kazzz - thanks again for the 0.30.2 MacOS DMGs! (DMG naming convention for 0.30.2 by @kazzz)
2025-05-29 New release 0.30.2 is available! (Release notes)
2025-05-02 DMGs for 0.30.1 are now available. Thanks to @kazzz as usual! (DMG naming convention for 0.30.1 by @kazzz)
© 2019-2025 Matthias Köfferlein