Master Cleaner is a professional-grade Windows 11 system optimization and security suite built with Python and CustomTkinter. It follows a strict safety protocol — every action requires Scan, Review and Approve before anything is modified.
System Cleaning — Browser cache removal for Chrome, Edge and Firefox. Temporary file and Prefetch cleanup. Windows bloatware removal via PowerShell integration. Nothing is deleted without explicit user approval.
Performance Boost — DNS cache flushing. Winsock protocol reset. Registry backup and repair. Game Mode optimization for gaming PCs.
Security Scanning — YARA-based malware detection with 7 built-in rule sets: suspicious PE imports, ransomware indicators, PowerShell obfuscation, keylogger patterns, network backdoors, registry persistence and Mimikatz forensics tools. Users can add custom .yar files for additional detection rules.
System Diagnostics — S.M.A.R.T. disk health monitoring with detailed analysis. Battery cycle and health assessment for laptops. System File Checker (SFC) and DISM repair with live streamed output so you can see exactly what's happening.
Advanced Tools — DoD 5220.22-M compliant file shredder with 7-pass secure overwrite — data is unrecoverable. MD5-based duplicate file detection to free up disk space. Context menu registry editor for power users.
User Interface — Windows 11 glassmorphism design with navigation rail sidebar. Tab-based layout: Dashboard, Cleaner, Performance, Security, Health, Advanced and Settings. Animated circular health gauges. Live system monitoring for CPU, RAM, disk and network. Master Fix button for one-click parallel optimization. Ctrl+M keyboard shortcut.
Multi-Language — Five languages with instant hot-swap: English, Hebrew, Spanish, Russian and French. The LanguageManager uses the Observer pattern for sub-100ms switching across the entire interface.
Safety — Strict Scan → Review → Approve workflow. Checkbox-based audit trails. Exclusion whitelisting. Registry backups before any modification. Full transparency at every step.
Technical Stack — Python 3.12+, CustomTkinter, psutil, yara-python, WMI, pywin32, pySMART. Packaged with PyInstaller as a standalone .exe. Windows 10/11 required.
Master Cleaner is open source. Full source code is on GitHub.