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Nightcap

Nightcap

A sleep timer that dims the screen, lowers volume, then sleeps your computer

Nov 1, 2026 Productivity
cross_platform open source screen dimmer sleep timer volume control

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Nightcap

About

Nightcap is a free, open-source sleep timer for Windows, macOS and Linux. Set a timer and it dims the screen, gradually lowers the volume, then puts your computer to sleep. On macOS it lives in the menu bar. Built in Rust with egui.

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