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.
Free · Open sourceLatest versionMac
About 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.
Install in one command:
Or grab the latest DMG. It is notarized by Apple, so it just opens, no right-click, no warnings, no Terminal.
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](#verify-no-telemetry-yourself) in two commands.
- Every major CleanMyMac tool, in one app. 17 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
SafetyGuardthat 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.
Features at a glance
Cleanup
- Smart Scan (one click)
- System Junk (16+ categories)
- Mail Attachments
- Trash Bins
Protection
- Malware Removal
- Privacy (browsers)
- Saved Wi-Fi
- Permissions Overview
Performance
- Optimization (login items)
- Maintenance (system tasks)
Applications
- Uninstaller (+ Reset to Defaults)
- 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
Features in detail
Cleanup
Protection
Performance
Applications
Files
Menu Bar Widget
A glassmorphism menu-bar widget that puts your Mac's vitals one click away. It is an independent process that launches at login and is toggled from the app's sidebar, so you never have to open the main window just to check in.
- Live stat rings: CPU load, memory pressure, disk usage, and battery in a 2x2 ring grid (
host_processor_info,vm_statistics64, APFS capacity, IOKit power source), color-graded green to amber to red - Configurable readout: show free disk, GPU usage, memory usage, or battery temperature; the choice persists, and unavailable sensors show
-- - Network, uptime, and swap: real-time up/down throughput, system uptime, swap usage
Description adapted from the project README.
- Version
- 1.25.3
- Updated
- Oct 14, 2026
- Size
- 15 MB
- License
- BSD 3-Clause License
Open source details
- Source code
- Exact source for v1.25.3
- Released
- Oct 14, 2026
- GitHub stars
- 1.9K
- Website
- github.com/iliyami/MacSai
Community project. Help and bug reports go to the maintainers on GitHub; AppsXi does not provide support for this app.
License
PermissiveBSD 3-Clause License
Use, change and share it freely, including in closed source apps, as long as the copyright notice stays.
Read the full licenseHow this app was checked
AppsXi checks every version before it is listed.
Signed by Iliya Mirzaei (H3XLS95QV4)
Apple Developer ID team H3XLS95QV4
Notarized by Apple
Hardened Runtime on
File matches the hash GitHub published
SHA-256 4ae2d2e7cd1d861b579f22179543c37e408c0129a623ea6b7711f645ce3c3d75
No malware found
ClamAV 1.5.4 on Oct 14, 2026
Install and behavior test in a virtual machine: not run yet
Coming soon for all listings.
Versions
1.25.3checked
Checked Oct 14, 2026 · Mac
DMG · 15 MB
Questions about MacSai
Is MacSai free?
Yes. MacSai is free and open source under the BSD 3-Clause License. AppsXi lists the maintainers' official release and does not charge for it.
Is MacSai safe to download?
AppsXi downloads every version of MacSai from the maintainers' official GitHub release and checks it before it is listed. For version 1.25.3 (checked Oct 14, 2026), the Mac download is signed by its developer and notarized by Apple, each file matches the checksum GitHub publishes for the release, byte for byte and a malware scan found nothing.
Does MacSai run on Apple silicon Macs?
Yes. MacSai has a native Apple silicon build, and it runs on Intel Macs too.
What does MacSai need to run?
MacSai needs macOS Sonoma (14) or later.
Who makes MacSai?
MacSai is an open source project by Iliya Mirzaei on GitHub (iliyami/MacSai). Help and bug reports go to its maintainers there.
Reviews
No reviews yet. Anyone who downloads it from AppsXi while signed in can review it a day later.
Something wrong with this app? Report a problem. Maintainer? Claim this listing or ask us to remove it.
