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Top 10 Best Computer Cleaner Software of 2026

Discover the top 10 best computer cleaner software to optimize your device's performance. Clean, speed up, and protect – find your perfect tool today!

Rajesh Patel

Rajesh Patel

Feb 11, 2026

10 tools comparedExpert reviewed
Independent evaluation · Unbiased commentary · Updated regularly
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In today's digital landscape, computer cleaner software is essential for maintaining system efficiency, protecting privacy, and freeing valuable storage space. With a range of tools from lightweight utilities to comprehensive suites, choosing the right solution ensures tailored optimization that aligns with diverse needs.

Quick Overview

  1. 1#1: CCleaner - The world's most popular PC cleaner that removes temporary files, browser cache, and registry errors to optimize system performance.
  2. 2#2: BleachBit - Open-source disk cleaner that securely deletes junk files, frees disk space, and protects privacy without ads.
  3. 3#3: Glary Utilities - All-in-one free optimization suite that cleans disks, fixes registry issues, and removes duplicates to boost PC speed.
  4. 4#4: Wise Disk Cleaner - Powerful free tool for scanning and removing junk files, temporary data, and invalid shortcuts to reclaim disk space.
  5. 5#5: PrivaZer - Advanced free cleaner that securely erases traces of internet activity, leftovers, and frees up disk space.
  6. 6#6: Advanced SystemCare - Comprehensive PC optimizer that cleans junk files, defragments disks, and speeds up your computer with one click.
  7. 7#7: AVG TuneUp - Intelligent optimization software that automatically removes junk files, bloatware, and fixes performance issues.
  8. 8#8: Auslogics Disk Cleaner - Smart disk cleaning tool that safely removes temporary files, caches, and logs to free up valuable storage space.
  9. 9#9: CleanMyPC - User-friendly one-click cleaner that removes junk, large files, and application caches to optimize Windows performance.
  10. 10#10: Ashampoo WinOptimizer - Feature-rich suite that cleans system junk, tweaks registry, and benchmarks performance for a faster PC.

We selected these tools by prioritizing performance consistency, robust feature sets (including junk file removal, registry care, and privacy protection), user-friendliness, and overall value, ensuring reliability for varied user requirements.

Comparison Table

This comparison table assesses popular computer cleaner software, featuring tools like CCleaner, BleachBit, Glary Utilities, Wise Disk Cleaner, PrivaZer, and more, to guide users through their system maintenance options. Readers will explore key attributes such as cleaning capabilities, user-friendliness, and additional features, helping them find the right tool for their needs.

1CCleaner logo9.5/10

The world's most popular PC cleaner that removes temporary files, browser cache, and registry errors to optimize system performance.

Features
9.3/10
Ease
9.8/10
Value
9.1/10
2BleachBit logo8.7/10

Open-source disk cleaner that securely deletes junk files, frees disk space, and protects privacy without ads.

Features
9.3/10
Ease
7.8/10
Value
10.0/10

All-in-one free optimization suite that cleans disks, fixes registry issues, and removes duplicates to boost PC speed.

Features
8.7/10
Ease
9.2/10
Value
8.1/10

Powerful free tool for scanning and removing junk files, temporary data, and invalid shortcuts to reclaim disk space.

Features
8.4/10
Ease
9.1/10
Value
9.3/10
5PrivaZer logo8.2/10

Advanced free cleaner that securely erases traces of internet activity, leftovers, and frees up disk space.

Features
9.0/10
Ease
7.0/10
Value
9.5/10

Comprehensive PC optimizer that cleans junk files, defragments disks, and speeds up your computer with one click.

Features
8.1/10
Ease
9.0/10
Value
7.0/10
7AVG TuneUp logo7.6/10

Intelligent optimization software that automatically removes junk files, bloatware, and fixes performance issues.

Features
8.0/10
Ease
8.4/10
Value
6.9/10

Smart disk cleaning tool that safely removes temporary files, caches, and logs to free up valuable storage space.

Features
7.2/10
Ease
8.5/10
Value
8.0/10
9CleanMyPC logo8.2/10

User-friendly one-click cleaner that removes junk, large files, and application caches to optimize Windows performance.

Features
8.4/10
Ease
9.3/10
Value
7.6/10

Feature-rich suite that cleans system junk, tweaks registry, and benchmarks performance for a faster PC.

Features
8.1/10
Ease
8.3/10
Value
7.0/10
1
CCleaner logo

CCleaner

specialized

The world's most popular PC cleaner that removes temporary files, browser cache, and registry errors to optimize system performance.

Overall Rating9.5/10
Features
9.3/10
Ease of Use
9.8/10
Value
9.1/10
Standout Feature

Safe and powerful Registry Cleaner that scans and fixes invalid entries to resolve crashes and errors without risking system stability

CCleaner is a top-tier system optimization and cleaning tool developed by Piriform that effectively removes junk files, temporary data, browser caches, and invalid registry entries to boost PC performance and free up disk space. It also features privacy tools for secure file deletion, startup program management, and software/driver updaters. With both free and professional editions, it supports Windows, macOS, and offers scheduled scans for automated maintenance.

Pros

  • Exceptionally effective at cleaning junk files and reclaiming significant disk space
  • Intuitive one-click cleaning interface ideal for all skill levels
  • Regular updates with broad browser and OS compatibility

Cons

  • Free version includes ads and upselling prompts
  • Registry cleaner requires caution to avoid potential issues
  • Advanced features like real-time monitoring locked behind paid upgrade

Best For

Everyday users and non-technical individuals seeking simple, reliable PC maintenance and performance optimization.

Pricing

Free version available with core features; Professional edition at $24.95/year per PC, including automatic updates and priority support.

Visit CCleanerccleaner.com
2
BleachBit logo

BleachBit

specialized

Open-source disk cleaner that securely deletes junk files, frees disk space, and protects privacy without ads.

Overall Rating8.7/10
Features
9.3/10
Ease of Use
7.8/10
Value
10.0/10
Standout Feature

Customizable secure wiping with multiple overwrite passes (e.g., Gutmann 35-pass) to irrecoverably delete sensitive data

BleachBit is a free, open-source disk cleaner and privacy manager designed to free up space by removing temporary files, caches, logs, and other junk from hundreds of applications on Windows and Linux. It offers preview functionality to review files before deletion and supports secure wiping with multiple overwrite methods like Gutmann or DoD standards to prevent data recovery. The tool also includes options for shredding specific files and cleaning system registries, making it a robust solution for privacy-focused maintenance.

Pros

  • Completely free and open-source with no ads or upsells
  • Comprehensive cleaners for over 2,500 applications and system areas
  • Secure deletion with advanced overwrite algorithms for privacy

Cons

  • Dated graphical interface that feels clunky compared to modern alternatives
  • Requires careful configuration to avoid accidental data loss
  • Limited real-time scheduling or automation features

Best For

Tech-savvy users seeking a powerful, no-cost tool for deep disk cleaning and privacy protection on Windows or Linux.

Pricing

100% free (open-source, donations optional)

Visit BleachBitbleachbit.org
3
Glary Utilities logo

Glary Utilities

specialized

All-in-one free optimization suite that cleans disks, fixes registry issues, and removes duplicates to boost PC speed.

Overall Rating8.4/10
Features
8.7/10
Ease of Use
9.2/10
Value
8.1/10
Standout Feature

1-Click Maintenance that automates junk cleaning, registry repair, and shortcuts fixing in one go

Glary Utilities is a comprehensive PC optimization suite designed to clean junk files, repair registry errors, manage startup programs, and defragment disks for improved system performance. It features over 20 specialized tools accessible via a user-friendly interface, including a one-click maintenance option that scans and fixes multiple issues simultaneously. While the free version handles core cleaning tasks effectively, the Pro edition adds advanced modules like software updates and secure file deletion.

Pros

  • One-click maintenance for quick scans and fixes
  • Extensive free toolkit with 20+ utilities
  • Intuitive interface suitable for beginners

Cons

  • Pro features locked behind paywall
  • Occasional aggressive registry cleaning risks
  • Pop-up prompts for upgrades in free version

Best For

Beginner to intermediate users seeking a free, all-in-one tool for routine PC cleaning and maintenance.

Pricing

Free version available; Pro starts at $19.97/year or $39.97 lifetime for advanced features.

Visit Glary Utilitiesglaryutilities.com
4
Wise Disk Cleaner logo

Wise Disk Cleaner

specialized

Powerful free tool for scanning and removing junk files, temporary data, and invalid shortcuts to reclaim disk space.

Overall Rating8.2/10
Features
8.4/10
Ease of Use
9.1/10
Value
9.3/10
Standout Feature

Advanced file shredder with multiple overwrite algorithms for secure, irrecoverable deletion of sensitive data

Wise Disk Cleaner is a free utility from WiseCleaner that scans and removes junk files, temporary files, browser caches, invalid shortcuts, and other unnecessary data to reclaim disk space on Windows PCs. It features quick one-click cleaning, customizable scan options, and tools like a file shredder for secure deletion. The software also includes a disk space analyzer and Windows slimming capabilities to optimize system performance without compromising stability.

Pros

  • Fast and thorough junk file scanning
  • Highly customizable cleaning rules with safety whitelists
  • Free version is fully functional with no limits on cleaning

Cons

  • Somewhat dated user interface
  • Pro version required for scheduling and advanced shredding
  • Occasional prompts to upgrade or install other Wise tools

Best For

Budget-conscious Windows users seeking a simple, reliable tool for routine disk cleanup and space optimization.

Pricing

Free version available; Pro upgrade at $19.95/year for automation, file recovery, and enhanced features.

5
PrivaZer logo

PrivaZer

specialized

Advanced free cleaner that securely erases traces of internet activity, leftovers, and frees up disk space.

Overall Rating8.2/10
Features
9.0/10
Ease of Use
7.0/10
Value
9.5/10
Standout Feature

Multi-pass secure overwrite deletion (up to 35 passes) for irrecoverable data removal

PrivaZer is a free Windows utility focused on deep cleaning and privacy protection, removing traces of browsing history, cookies, temporary files, and registry entries. It excels in secure file deletion by overwriting data multiple times (up to 35 passes) to prevent recovery, while also optimizing disk space through free space cleaning. The tool offers customizable scan options for targeted privacy enhancement beyond basic cleaners.

Pros

  • Thorough secure deletion with multi-pass overwriting
  • Comprehensive cleaning of system traces and free space
  • Fully free with no ads or limitations

Cons

  • Dated and somewhat cluttered interface
  • Scans can be time-consuming on large drives
  • Requires user knowledge to avoid accidental deletions

Best For

Privacy-focused users who need secure data wiping and deep cleaning on Windows PCs without spending money.

Pricing

Completely free for personal use; optional donations supported.

Visit PrivaZerprivazer.com
6
Advanced SystemCare logo

Advanced SystemCare

specialized

Comprehensive PC optimizer that cleans junk files, defragments disks, and speeds up your computer with one click.

Overall Rating7.6/10
Features
8.1/10
Ease of Use
9.0/10
Value
7.0/10
Standout Feature

ActiveBoost technology for real-time resource allocation and performance tweaks during intensive tasks

Advanced SystemCare from IObit is an all-in-one PC optimization tool designed to clean junk files, fix registry errors, and improve system performance through automated scans and optimizations. It includes features like real-time monitoring, privacy protection, and internet booster tools to maintain overall computer health. The software offers both free and Pro versions, with the latter unlocking advanced functionalities for deeper cleaning and speedup.

Pros

  • Comprehensive one-click cleaning for junk, registry, and duplicates
  • Real-time performance monitoring and resource optimization
  • User-friendly interface suitable for beginners

Cons

  • Heavy upselling of Pro version in free edition
  • Some features can be resource-intensive during scans
  • Occasional false positives in cleaning recommendations

Best For

Casual users looking for simple, automated PC maintenance without advanced technical expertise.

Pricing

Free version available; Pro annual subscription starts at $19.99, with multi-year discounts and bundles.

7
AVG TuneUp logo

AVG TuneUp

specialized

Intelligent optimization software that automatically removes junk files, bloatware, and fixes performance issues.

Overall Rating7.6/10
Features
8.0/10
Ease of Use
8.4/10
Value
6.9/10
Standout Feature

Sleep Mode, which automatically hibernates unused programs to free up memory and boost speed in real-time

AVG TuneUp is a comprehensive PC optimization suite designed to clean junk files, remove browser data, manage startup programs, and fix registry issues for improved system performance. It features tools like Disk Cleaner, Duplicate Finder, and automatic maintenance schedules that run in the background without user intervention. Additionally, it includes unique modes like Sleep Mode to hibernate unused apps and free up RAM, making it suitable for Windows and Mac users seeking hassle-free upkeep.

Pros

  • One-click optimization for quick cleanups
  • Effective RAM and disk space management with Sleep Mode
  • Supports multiple devices with automatic maintenance

Cons

  • Subscription required for full access after trial
  • Some features overlap with free tools like built-in Windows cleaners
  • Can occasionally recommend unnecessary actions

Best For

Busy users with multiple PCs who want automated performance tuning without technical expertise.

Pricing

Starts at $49.99/year for up to 10 devices (often discounted first year to $24.99); free trial available.

8
Auslogics Disk Cleaner logo

Auslogics Disk Cleaner

specialized

Smart disk cleaning tool that safely removes temporary files, caches, and logs to free up valuable storage space.

Overall Rating7.6/10
Features
7.2/10
Ease of Use
8.5/10
Value
8.0/10
Standout Feature

Safe Clean Wizard that categorizes files and prevents accidental deletion of important data

Auslogics Disk Cleaner is a free Windows utility that scans and removes junk files, temporary files, browser cache, system logs, and other unnecessary data to free up disk space and improve performance. It features a simple one-click cleaning process with options to preview files before deletion, ensuring safety. The Pro version adds scheduling, ignore lists, and deeper scans for more thorough maintenance.

Pros

  • Quick and thorough junk file scanning
  • Intuitive interface with preview options
  • Completely free basic version available

Cons

  • Frequent upsells to Pro version
  • Limited advanced features in free edition
  • Potential for bundled software during install

Best For

Beginner users seeking a simple, no-cost tool for routine disk cleanup on Windows PCs.

Pricing

Free version; Pro upgrade at $19.95 one-time purchase or $4.95/month subscription.

9
CleanMyPC logo

CleanMyPC

specialized

User-friendly one-click cleaner that removes junk, large files, and application caches to optimize Windows performance.

Overall Rating8.2/10
Features
8.4/10
Ease of Use
9.3/10
Value
7.6/10
Standout Feature

Space Lens, a unique visual disk usage map that helps users quickly identify and manage large files.

CleanMyPC by MacPaw is a Windows-focused optimization tool that scans and removes junk files, temporary data, and system clutter to free up disk space and improve performance. It includes modules like Smart Scan for quick cleanups, Space Lens for visualizing storage usage, and tools for complete app uninstallation and startup management. The software emphasizes safe cleaning practices to avoid damaging system files, making it suitable for everyday maintenance.

Pros

  • Intuitive and visually appealing interface ideal for beginners
  • Safe cleaning algorithms that minimize risk to system files
  • Effective multi-module approach covering junk removal, uninstalls, and space analysis

Cons

  • Subscription model with recurring costs rather than one-time purchase
  • Lacks advanced registry cleaning or deep optimization tools found in competitors
  • Windows-only, no macOS version despite the name

Best For

Casual Windows users seeking a simple, safe way to maintain PC performance without technical expertise.

Pricing

Starts at $39.95/year for 1 PC; multi-device or lifetime plans up to $149.95.

Visit CleanMyPCmacpaw.com
10
Ashampoo WinOptimizer logo

Ashampoo WinOptimizer

specialized

Feature-rich suite that cleans system junk, tweaks registry, and benchmarks performance for a faster PC.

Overall Rating7.6/10
Features
8.1/10
Ease of Use
8.3/10
Value
7.0/10
Standout Feature

Modular 1-Click Optimizer that combines cleaning, tuning, and analysis in a single automated pass

Ashampoo WinOptimizer is an all-in-one Windows maintenance tool focused on cleaning junk files, optimizing the registry, and improving system performance through various specialized modules. It scans for temporary files, browser data, and invalid registry entries while offering startup management and tweak tools for better speed. The software provides a one-click optimizer for quick cleanups alongside deeper customization options for advanced users.

Pros

  • Comprehensive module-based cleaning including registry and privacy tools
  • Intuitive interface with one-click optimization for beginners
  • Includes performance tweaks and benchmarks beyond basic cleaning

Cons

  • Free version is limited with watermarks and fewer features
  • Some modules feel redundant or overly aggressive on tweaks
  • Occasional upsell prompts and bundled offers during install

Best For

Windows users seeking a feature-rich cleaner with optimization extras who don't mind paying for premium access.

Pricing

Free version available with limitations; Premium license ~$40 one-time purchase with 1-year updates, renewals ~$20.

Conclusion

After evaluating the top 10 options, CCleaner emerges as the clear winner, leading in popularity and comprehensive system optimization. BleachBit stands out as a strong open-source choice for privacy-focused cleaning, while Glary Utilities impresses with its all-in-one suite for versatile performance boosting. Together, these tools offer reliable solutions to enhance PC speed, ensuring there’s a perfect pick for every user’s needs.

CCleaner logo
Our Top Pick
CCleaner

Optimize your PC today—start with CCleaner, the top-ranked tool, and unlock a faster, smoother computing experience.