# MacSai (open-source security and privacy app)

> MacSai is a free, open-source security and privacy app for macOS. Mac Sai: the open-source Mac cleaner, optimizer, and malware scanner. It has 1,773 GitHub stars and is released under the BSD-3-Clause license. Its source code is on GitHub at iliyami/MacSai.

The open-source Mac cleaner, optimizer, and malware scanner. A free, Apple-notarized alternative to CleanMyMac, built with Swift 6 and SwiftUI.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/iliyami/MacSai |
| Platforms | macOS |
| Interface | desktop GUI |
| GitHub stars | 1,773 |
| License | BSD-3-Clause (open source) |
| Replaces | n/a |
| Language | Swift |
| Website | none listed |
| Official | no |
| Category | Password managers, encryption & privacy |
| Latest release | v1.21.3 (Sep 30, 2026) |
| Last commit | Oct 8, 2026 |

## Install

### Homebrew (macOS)

```sh
brew install --cask mac-sai
```

Package page: https://formulae.brew.sh/cask/mac-sai

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Canonical page: https://appsgit.com/desktop-apps/macsai
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