Free & Open Source · For Windows

Clear Clutter, Claim Space.

The lightest Windows disk cleanup assistant at your fingertips. Easily discover large files devouring your space and analyze disk usage distribution with one click.

Download Installer Download Portable

Windows 10 / 11 · x64

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Pure & Offline

No network required. All operations run locally on your machine. No data collection, no cloud dependency.

✅

Safe & Green

No bundled software, no ads, no background processes. Clean uninstall with zero residual files.

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Lightweight & Fast

Single file under 70MB. Launches instantly with minimal resource usage.

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Open Source

100% open source on GitHub. Every line of code is auditable. Community-driven development.

Powerful Features

Everything you need to keep your Windows system clean and fast.

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System Junk Cleaner

Scan and clean temporary files, browser caches, Windows update caches, system logs, and more. Free up gigabytes of disk space instantly.

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Large File Scanner

Quickly find the largest files on any drive. Set custom size thresholds and sort by size, type, or date to identify space-hogging files.

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Duplicate File Detector

Find and remove duplicate files using SHA256 hash comparison. Multi-threaded scanning across multiple drives for maximum speed.

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Disk Space Analysis

Visualize disk usage with an interactive tree view. Drill down into folders to see exactly where your space is being used.

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6 Languages

Available in Simplified Chinese, Traditional Chinese, English, Japanese, Korean, and German. Switch languages instantly in settings.

🎨

Customizable Themes

Choose from 10+ theme colors and switch between dark and light modes. Your preferences are saved automatically.

Feature Showcase

Explore the core capabilities of WinCleanCat.

System Junk Cleaner

One-click scan and clean: Windows temp files, browser caches (Chrome, Edge, Firefox), Windows Update caches, system logs, and thumbnail caches. Typically frees 1-5 GB of disk space.

Large File Scanner

Scan any drive or folder for large files. Set custom minimum size thresholds (e.g. 500 MB). Sort results by size, type, or date. Real-time disk usage bar shows space distribution at a glance.

Duplicate File Detector

Multi-threaded SHA256 hash comparison finds true duplicates across multiple drives. Select folders or entire disks to scan. Auto-select duplicates for quick cleanup with one click.

Disk Space Analysis

Interactive tree view shows folder sizes with visual bars. Drill down into any folder to understand exactly where disk space is being used. Click to open folders directly in Explorer.

Customizable Settings

Switch between 6 languages instantly. Choose from 10+ accent colors. Toggle dark/light themes. Configure deletion behavior (recycle bin or permanent). All preferences auto-saved.