FluentCleaner Classic is a free, open-source junk cleaner for Windows 10 and Windows 11 that quickly removes temporary files, browser caches, logs, thumbnails, and other unnecessary data. Built with a modern WinUI 3 interface, it delivers fast scans, smart cleanup, and a portable design without ads, subscriptions, or unnecessary registry cleaning.
FluentCleaner Classic comes in two flavors: the modern WinUI 3 edition with a sleek Windows 11-inspired interface, and FluentCleaner Classic—a lightweight, 3.5 MB portable version with a familiar CCleaner-style layout. Choose Classic if you prefer maximum compatibility, instant startup, a tiny download, or need a cleaner that runs on virtually any Windows PC without additional runtime components.
In This Post
Download FluentCleaner
File size: 47.0 MB
OS support: Windows
Windows
Download FluentCleaner for Windows – x64
Download FluentCleaner for Windows (Portable)
Key Features
- Fast Junk File Cleanup: Quickly scans and removes temporary files, browser caches, logs, thumbnails, and other unnecessary data from your Windows system, freeing up valuable disk space in seconds.
- Portable Design: Available as a lightweight 3.5 MB portable version that runs directly from USB drives or any location without installation, perfect for on-the-go system maintenance.
- Modern WinUI 3 Interface: Features a sleek, Windows 11-inspired interface with smooth animations and intuitive navigation for an enhanced user experience on modern Windows systems.
- No Ads or Subscriptions: Completely free and open-source with no advertisements, premium features, or subscription requirements—enjoy full functionality without any hidden costs.
- Cross-Browser Support: Cleans temporary files, cookies, and cached data from popular browsers including Chrome, Firefox, Edge, and Opera to maintain optimal browsing performance.
- Multi-Language Localization: Supports multiple languages including English, German, Bulgarian, Japanese, Italian, and Russian, making it accessible to users worldwide.
New in This Version
- Added a full Cookie Manager for managing and protecting website cookies across both Classic and Modern editions
- Detects cookies from Edge, Chrome, Chromium, Brave, Vivaldi, Opera, Opera GX, and Firefox profiles
- Selected website cookies can now be protected so logins survive regular browser cleaning
- Individual cookies can be deleted directly from the Cookie Manager
- Existing cookie keep-lists can be imported from CCleaner TXT exports and exported as portable TXT files
- Browser cleaning now preserves selected cookies without deleting the complete cookie database
- Settings panel in the Modern edition is now divided into clearly navigable sections
- Updated English and German localization for the Cookie Manager and redesigned Settings navigation
Required Specs
Minimum
- OS: Windows 7 or later
Technical Details
| Software Name | FluentCleaner |
|---|---|
| Version | 1.15.170 |
| License | Free |
| File Size | 47.0 MB |
| OS Support | Windows |
| Language | English, German |
| Developer | builtbybel |
| Homepage | https://github.com/builtbybel/FluentCleaner |
| Changelogurl | https://github.com/builtbybel/FluentCleaner/releases |
| Last Updated | September 1, 2026 |
Setup Instructions
Installation Steps
- Click the download button above to get the installer for your operating system
- Locate the downloaded file and double-click to run the installer
- Follow the on-screen installation wizard to complete setup
Compatibility: Compatible with Windows 7 and later versions
Problem Solving
- Issue: Installation fails → Solution: Run as administrator
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