FluentCleaner Download | TechSpot

Inspired by the early CCleaner era, FluentCleaner reimagines the classic PC cleanup utility for modern Windows systems. Built with WinUI 3, it focuses on a cleaner, lightweight experience centered around removing temporary files, cache, logs, and leftover clutter – without aggressive registry tweaks, bundled extras, or scareware-style prompts.

The project also embraces the community-driven spirit that helped make older cleanup tools popular in the first place. FluentCleaner supports the well-known winapp2.ini cleaning database format, allowing it to leverage a large ecosystem of community-maintained cleaning rules while keeping the app fast, transparent, and easy to use.

Features

• Portable design with no installation required
• One-click system analysis and cleanup
• Support for optional maintenance extensions
• Optimized for Windows 11
• Clear and easy-to-understand cleanup results

System Requirements:

• Windows 10 2004 (Build 19041) and later
• Windows 11

No Windows 11 requirement. Despite using WinUI 3, the app is intentionally built to remain compatible with modern Windows 10 systems as well

What’s New

If I had to give this release a codename, it’d be ~WRL0001.tmp, so you never knew what it was, but deleting it always felt satisfying

• [Added] Cancel button: the Analyze button morphs into Cancel the moment a scan or clean starts. Abort any scan or clean mid-run
• [Added] Junk growth tracker: Settings now keeps a history of past clean runs (date, bytes freed, items removed)
• [Improved] Scan speed significantly improved for entries with multiple file pattern; the directory tree is now traversed once total instead of once per pattern, cutting scan times by up to 28× on some entries
• [Added] AI explanations for Winapp2 entries via Groq (experimental, requires a free API key in Settings):fully opt-in, nothing is sent anywhere without your own key. The idea was to explain individual Winapp2 entries, file paths and registry keys in plain English before cleanup. Many users asked to keep it in to test it themselves;a local LLM option may come later. Honestly, i built this because I had no idea what half the entries in my own app were doing 😄 Turns out FluentCleaner knew about apps I’d completely forgotten I had installed.See it in action on X/Twitter
• [Improved] Upgraded from Windows App SDK 1.8 >> 2.0.1 (stable, released April 29 2026)
• [Improved] Scanner no longer loops forever on junction points and symlinks;reparse points are skipped during traversal (fixes the C:\Users\All Users >> C:\ProgramData infinite loop trap)
• [Improved] Search now auto-expands categories so results are actually visible
• [Improved] Tools page got a full visual overhaul inspired by the Windows Clock app widget style;extensions now feel like interactive widgets rather than a plain list
• [Improved] Hamburger button moved into the title bar: native Windows 11 pattern (File Explorer / Settings style)
• [Improved] Settings button is now the built-in NavigationView control, complete with the native rotation animation on click
• [Improved] Navigation cleaned up to follow the official WinUI 3 way;replaced custom workarounds with native patterns
• [Improved] Dropped x86 build target: x64 and ARM64 only
• [Added] New cleanup rules for Microsoft Edge and TeamViewer cache
• [Updated] Winapp2.ini to version 260512

FluentCleaner 26.05.02

• [Changed] Large parts of the app were refactored to use more native WinUI 3 behavior and APIs. Theme handling, TitleBar integration and system theme detection are now much cleaner and more consistent
• [Compatibility] FluentCleaner officially supports Windows 10 2004 (Build 19041) and later;no Windows 11 required
• [Added] Automatic update checks; the Settings page now silently checks for new versions on load.
• If an update is available, FluentCleaner shows a small red banner with a direct download button. You can also trigger update checks anytime from the […] menu in Settings.
• [Added] Responsive TitleBar search; the search box now collapses into a compact search icon + flyout on smaller window sizes for a cleaner layout.
• [Added] Native-style hamburger menu; moved the pane toggle into the TitleBar to better match modern WinUI apps
• [Added] Terminal startup system info; Windows version, CPU and RAM are now shown when opening the terminal
• [Updated] CommunityToolkit.Mvvm 8.3.2 > 8.4.2
• [Fixed] ARM64 builds not resolving correctly. Turns out MSBuild is case-sensitive and arm64 ≠ ARM64. Added explicit RuntimeIdentifiers so self-contained builds correctly detect their target platform.
• [Changed] Migrated all [ObservableProperty] backing fields to partial properties. This is the new standard for CommunityToolkit.Mvvm 8.4+ on .NET 10. No behavior changes, just cleaner code and no more compiler warnings