PureMac

PureMac is a free, open-source macOS app manager and system cleaner. It provides complete app uninstallation, orphaned file detection, and system junk cleaning without subscriptions, telemetry, or data collection.

Features

App Uninstaller

Discovers installed apps from /Applications and ~/Applications
Heuristic file discovery engine with 10-level matching (bundle ID, company name, entitlements, team identifier, Spotlight metadata, container discovery)
3 sensitivity levels: Strict (safe), Enhanced (balanced), Deep (thorough)
Shows related files: caches, preferences, containers, logs, support files, launch agents
System app protection (27 Apple apps excluded)
Master-detail view: app table on left, discovered files on right

Orphaned File Finder

Detects leftover files in ~/Library from uninstalled apps
Compares Library contents against installed app identifiers
One-click cleanup of orphaned files

System Cleaner

Smart Scan: one-click scan across all categories
System Junk: system caches, logs, temporary files
User Cache: dynamically discovers all app caches (no hardcoded list)
Mail Attachments: downloaded mail attachments
Trash Bins: empty all Trash
Large & Old Files: files >100 MB or older than 1 year
Purgeable Space: APFS purgeable disk space detection
Xcode Junk: DerivedData, Archives, simulator caches
Brew Cache: Homebrew download cache (detects custom HOMEBREW_CACHE)
Scheduled Cleaning: automatic scans on configurable intervals

Native macOS Experience

Built with SwiftUI using native macOS components
NavigationSplitView, Toggle, ProgressView, Form, GroupBox, Table
Respects system light/dark mode automatically
No custom gradients, glows, or web-app styling
First-launch onboarding with Full Disk Access setup

Safety

Confirmation dialogs before destructive operations
Symlink attack prevention (resolves and validates paths before deletion)
System app protection (Apple apps cannot be uninstalled)
Large & Old Files never auto-selected
Structured logging via os.log (visible in Console.app)

Installation

Homebrew (recommended)

brew update
brew install --cask puremac

Direct Download

Download the latest .dmg from Releases, open it, and drag PureMac to /Applications.

Signed and notarized with Apple Developer ID - installs without Gatekeeper warnings.

Build from source

brew install xcodegen
git clone https://github.com/momenbasel/PureMac.git
cd PureMac
xcodegen generate
xcodebuild -project PureMac.xcodeproj -scheme PureMac -configuration Release -derivedDataPath build build
open build/Build/Products/Release/PureMac.app

Architecture

PureMac/
  Logic/Scanning/     - Heuristic scan engine, locations database, conditions
  Logic/Utilities/    - Structured logging
  Models/             - Data models, typed errors
  Services/           - Scan engine, cleaning engine, scheduler
  ViewModels/         - Centralized app state
  Views/              - Native SwiftUI views
    Apps/             - App uninstaller views
    Cleaning/         - Smart scan and category views
    Orphans/          - Orphan finder
    Settings/         - Native Form-based settings
    Components/       - Shared components

Key components:

AppPathFinder - 10-level heuristic matching engine for discovering app-related files
Locations - 120+ macOS filesystem search paths
Conditions - 25 per-app matching rules for edge cases (Xcode, Chrome, VS Code, etc.)
AppInfoFetcher - Spotlight metadata + Info.plist fallback for app discovery
Logger - Apple os.log unified logging

Contributing

Contributions are welcome. See the upstream repository’s CONTRIBUTING guide for details.

Areas where help is especially welcome:

Size/date filter presets in category views
XCTest coverage for AppState and scan engine
Localization (zh-Hans, zh-Hant, and other languages)
App icon design

Acknowledgments

v2.0 was shaped by community feedback and contributions:

@nguyenhuy158 - Search and filter feature request (#18) and implementation (#29)
@edufalcao - Cleaning safety guards and confirmation dialogs

LLM Wiki

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