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Top Open Source System Cleanup & Optimization Tools in 2026

A curated collection of the 3 best free and open-source System Cleanup & Optimization tools in 2026. Compare features, GitHub stars, tech stacks, and self-hosted software.

  • BleachBit

    Open-source disk cleaner and privacy manager

    Stars
    6,719
    Last commit
    11d ago
    License
    GPL-3.0

  • Mole

    Native Mac cleaner and system monitor

    Stars
    65,086
    Last commit
    11d ago
    License
    GPL-3.0

  • Pearcleaner

    Open-source macOS app cleaner

    Stars
    14,436
    Last commit
    2mo ago
    License
    Open Source
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Showing 3 of 3 open-source tools