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KWin vs Karousel: catalog facts
KWin	Karousel
Free Free and open source as part of KDE Plasma.	Free Free to download from its GitHub repository.
Linux	Linux
Per-application window rules Built-in tiling and scripting support	Adds scrollable column tiling to an existing Plasma desktop Runs inside KWin, so no compositor change is needed
Closely tied to KDE Plasma and its libraries Many options can be overwhelming to configure	Only works on KDE Plasma Scrolling tiling takes some adjustment for users of traditional tiling
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0-or-later	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.