Mac System Data Cleaner for Mac

Name: Mac System Data Cleaner
Author: prabch

Track down and clean bloated system caches and hidden junk files.

By prabch. Free and open source, GPL-3.0 licence.

Get it with OpenDMG View source on GitHub

Mac System Data Cleaner at a glance

Version: 1.2
Released: 25 June 2026
Download size: 2.5 MB
Works on: Apple silicon and Intel
Licence: GPL-3.0
Category: System Tools
Developer: prabch
GitHub stars: 59

About Mac System Data Cleaner

A simple, yet powerful system data cleaner for macOS. Use with caution.

Screenshots

How to install Mac System Data Cleaner on a Mac

Get OpenDMG. It is a free app store for open source Mac apps. Download OpenDMG.
Search for Mac System Data Cleaner and press Get. OpenDMG downloads version 1.2 from prabch's own GitHub release.
Open it. The download is checked against its SHA-256 fingerprint and its signature is checked on your Mac before it lands in Applications.

Updates to Mac System Data Cleaner show up in OpenDMG and install with one button. No account is needed.

Prefer to do it by hand? The developer's file is on GitHub: Mac-SysData-Cleaner.dmg (2.5 MB).

What is new in Mac System Data Cleaner 1.2

* Fix oversized app icon in certain macOS versions. Reported by @zach12211.
* Improve trash directory discovery for more reliable cleaning across mounted volumes, system fallback paths, and iCloud.

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