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Available on winget

Install Sumbo

Mirror any window into a single always-on-top view — crop it, fade it, click through it.

Install with winget
winget install --id koprodev.Sumbo
Upgrade
winget upgrade --id koprodev.Sumbo
Uninstall
winget uninstall --id koprodev.Sumbo

About Sumbo

Sumbo is a free, open-source Windows utility that live-mirrors any window using native DWM thumbnails. Keep a chat, a video, a dashboard, or a game map floating above your work — with zero impact on the source window (no capture, no injection, no performance cost to the mirrored app). Features: region crop, opacity 10-100%, click forwarding, click-through, size presets and 9-point screen anchoring, profiles, group switching, overlay (UI-hidden) mode, tray residency, startup update check, and a UI in 18 languages.

Version history

Version Updated Notes
1.2.0 Release notes