iliyami / MacSai

Mac Sai 
 The open-source Mac cleaner, optimizer, and malware scanner. 
 A free, Apple-notarized alternative to CleanMyMac, built with Swift 6 and SwiftUI.
 English | 简体中文 | 繁體中文 | Deutsch | Français | Русский 
 Install in one command: 
 [code] 
 Or grab the latest DMG . It is notarized by Apple, so it just opens, no right-click, no warnings, no Terminal.
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## Why Mac Sai?
A full-featured Mac cleaner should not cost a yearly subscription or ask you to trust a black box with deep access to your files. Mac Sai gives you the whole toolkit, in the open.
- **Free, forever.** No subscription, no in-app purchases, no "upgrade to Pro", no nag screens. BSD-3 licensed.
- **Zero telemetry.** No analytics, no crash reporter, no trackers, no server to phone home to. And you do not have to take our word for it, verify it yourself in two commands.
- **Every major CleanMyMac tool, in one app.** 22 modules across cleanup, protection, performance, applications, and disk insight, plus a menu-bar widget.
- **Safe by design.** Trash-first deletion, a protected-paths blocklist, symlink and TOCTOU guards, and a `SafetyGuard` that validates every path. It is built to never lose your data.
- **Apple-notarized and fully open source.** Your Mac verifies the signature every launch, and every line is here to read.
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## Features at a glance
### 🧹 Cleanup
- **Smart Scan** (one click)
- **System Junk** (16+ categories)
- **Mail Attachments**
- **Trash Bins**
- **Project Junk** (build folders)
- **Disk Hogs** (Docker, simulators)
- **Clean History** (one-click Restore)
### 🛡️ Protection
- **Malware Removal**
- **Privacy** (browsers)
- **Browser Extensions**
- **Saved Wi-Fi**
- **Permissions Overview**
### ⚡ Performance
- **Optimization** (login items)
- **Maintenance** (system tasks)
### 📦 Applications
- **Uninstaller** (+ Reset to Defaults)
- **Unused Apps**
- **Extensions** (panes, plug-ins)
- **Updater**
### 🗂️ Files
- **Space Lens** (disk treemap)
- **Large & Old Files**
- **Duplicates** (+ Consolidate)
- **Shredder**
### 📊 Menu Bar
- Live CPU / memory / disk / battery
- Network, uptime, swap
- Actionable recommendations
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## Features in detail
### 🧹 Cleanup
| Module | What it does |
|--------|------------|
| **Smart Scan** | One click runs cleanup, protection, and performance modules together with live progress, then shows exactly what it freed per module |
| **System Junk** | 16+ scan categories: user and system caches, logs, language files, broken preferences, broken login items, document versions, iOS backups, Xcode junk, package-manager / IDE / AI-tool caches, deleted-user leftovers, and **Universal Binary thinning** (finds fat Mach-O binaries carrying both arm64 and x86_64 and rewrites them to your native arch via `lipo`, honoring Cancel) |
| **Mail Attachments** | Finds cached attachments from Apple Mail, Outlook, and Spark |
| **Trash Bins** | Empties the Trash across every location, including external drives |
| **Project Junk** | Finds regenerable build folde