[opensourcedex]

best-of ranking · updated nightly

Best Open Source System Cleanup & Optimization Tools

Ranked by GitHub stars — actual adoption, not editorial taste. All 3 are free, open source and self-hostable; license and last activity on every entry.

  1. 1
    Mole ★ 68K

    Mac cleaner, app manager, and system monitor in one

    GPL-3.0 Shell pushed 2026-09-17 details →
  2. 2
    Pearcleaner ★ 15K

    Remove Mac apps and all their leftover files

    NOASSERTION Swift pushed 2026-06-22 details →
  3. 3
    BleachBit ★ 6.9K

    Clean your system and free disk space

    GPL-3.0 Python pushed 2026-09-17 details →
method stars desc · snapshot from github api refresh nightly related Input & Dictation, Office Suites, Email & Communication, Password & Secret Management, Design & Visualization, Time & Task Management

Related best-of lists

best Input & Dictation →best Office Suites →best Email & Communication →best Password & Secret Management →best Design & Visualization →best Time & Task Management →

last updated nightly · ranking method: github stars, live-tracked

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Frequently asked questions

What is the best open source System Cleanup & Optimization tool in 2026?

Mole leads the ranking with 67,621 GitHub stars, ahead of Pearcleaner. Rankings use live GitHub star counts, refreshed nightly.

How is this list of System Cleanup & Optimization tools ranked?

By GitHub stars — a proxy for adoption and community size. Each entry also shows its licence, primary language and last commit date, so you can judge maintenance activity rather than trusting the ranking alone.

Are the best System Cleanup & Optimization tools free?

Every project on this list is open source and free to self-host. Some also offer paid managed hosting, but the software itself carries no licence fee.