# What The F Keys on a Mac Do and How to Use Them

> F1 Reduce the screen's brightness F2 Increase the screen's brightness F3 Activates Mission Control/Expose view to show every running app F4 Showcases your apps or opens the dashboard for access to widgets F5 For backlit…

- **Source:** [Lifewire](https://www.lifewire.com/how-to-use-the-f-keys-on-a-mac-11909644?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=6a0ab23d460676ab0ad7ffa9)
- **Published:** 2026-05-18
- **Category:** Computers & IT
- **Tags:** #brightness #keys #track #keyboard #music #backlit #fast #function
- **Canonical:** http://localhost:4321/a/6a0ab23d460676ab0ad7ffa9

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_GearOpen's distilled summary. The full original article is published at Lifewire (source link above); GearOpen does not republish the source's full text._