Lunacy

Lunacy breaks platform barriers by bringing full Sketch file support to Windows and macOS alike. This lightweight desktop app opens .sketch documents natively, allowing you to edit layers, text, and vectors as if you were in Sketch itself. It’s completely free, works offline, and installs in seconds. Developers can extract assets, designers can make quick edits, and teams can share feedback—all without switching operating systems or dealing with cumbersome workarounds.