# Lunar (open-source desktop utility)

> Lunar is a free, open-source desktop utility for macOS. Intelligent adaptive brightness for your external monitors. It has 5,716 GitHub stars and is released under the MIT license. Its source code is on GitHub at alin23/Lunar.

Lunar The defacto app for controlling monitors Adjust brightness, change volume, switch inputs Lunar changes the hardware brightness of the monitor using the DDC protocol.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/alin23/Lunar |
| Platforms | macOS |
| Interface | desktop GUI |
| GitHub stars | 5,716 |
| License | MIT (open source) |
| Replaces | n/a |
| Language | Swift |
| Website | https://lunar.fyi |
| Official | no |
| Category | Archivers, cleaners & system utilities |
| Latest release | v6.11.0 (Jul 14, 2026) |
| Last commit | Jul 14, 2026 |

## Install

### Homebrew (macOS)

```sh
brew install --cask lunar
```

Package page: https://formulae.brew.sh/cask/lunar

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