# Mac Sai CleanMyMac 免费替代，开源无订阅的 Mac 清理工具

> Mac Sai 是一款免费开源的 Mac 系统维护工具，可以作为 CleanMyMac 免费替代方案来用。

## 关键信息

- 分类：平台软件应用
- 支持平台：macOS
- 收费方式：免费增值
- 开源协议：BSD
- 源码仓库：https://github.com/iliyami/MacSai
- 标签：开源、效率、浏览器扩展、macOS
- 收录日期：2026-06-14

## Mac Sai 是什么

Mac Sai 是一款免费开源的 Mac 系统维护工具，可以作为 CleanMyMac 免费替代方案来用。

Mac Sai 目前支持 macOS，收费方式为「免费增值」。安装前建议先到官方渠道确认最新的系统要求与授权条款。

## 主要功能

- 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.

## 安装与使用

```bash
brew uninstall --zap --cask mac-sai
curl -fsSL https://raw.githubusercontent.com/iliyami/MacSai/main/scripts/uninstall.sh | bash
```

> 功能介绍与安装命令摘录自项目官方 README，最新用法以官方文档为准。

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