Windows 11 has evolved into a smarter operating system, but it has also become more bloated over time, filled with temporary files, cache data, and preinstalled apps many users never touch. FluentCleaner offers a more modern alternative, bringing a cleaner and more refined experience to Windows maintenance. Developed by the creator of Flyoobe, this portable Windows app aims to modernize the way users clean and manage their Windows 11 systems through a sleek Fluent Design interface.
What Is FluentCleaner and Why Would You Need It?
As desktop apps continue to grow heavier and more resource-hungry, lightweight and efficient Windows maintenance tools are becoming more important than ever
FluentCleaner doesn’t try to completely replace tools like BleachBit or Microsoft PC Manager. Instead, it focuses on offering a faster, cleaner, and more modern experience for everyday Windows 11 cleanup tasks.
In practice, this small open-source Windows app fills the gap between those solutions. It brings the flexibility and cleanup capabilities of the winapp2.ini ecosystem, including support for winapp3, into a modern interface designed specifically for Windows 11.
Alongside its polished Fluent Design aesthetic, it also includes several optional extensions that enhance functionality without complicating the experience.
One of FluentCleaner’s biggest strengths is how well it appeals to three different types of users at once. The app makes it easy to identify and remove leftover files or overlooked system data that utilities such as BleachBit, Microsoft PC Manager, and similar tools may not always detect. In many ways, this is one of the most impressive aspects of the open-source project.
In essence, FluentCleaner is designed for:
- Former CCleaner users
- Existing BleachBit users
- Windows 11 users who want a more native and modern user experience
From the moment the application launches, users are presented with a clean and organized categorization of installed applications and system components. After running an Analyze scan, it becomes possible to selectively choose which items should be removed.
Compared to Microsoft PC Manager, which focuses primarily on basic cleanup and safe system maintenance, FluentCleaner leverages thousands of cleanup rules to provide deeper and more comprehensive cleaning while still prioritizing safety.
This functionality is powered by winapp2 and winapp3, community-driven configuration files that guide FluentCleaner in detecting hidden files, temporary data, and other unnecessary items that may be consuming valuable storage space.
As shown in the app’s settings, winapp3 isn’t enabled by default — and for good reason. Its cleanup routines are far more aggressive, making it better suited for advanced users who know exactly what they’re deleting.
On the other hand, while BleachBit offers a similar level of cleanup power, FluentCleaner tries to deliver that experience through a much more modern and approachable interface.
The app is built on WinUI 3, which makes it feel like a natural part of Windows instead of yet another old-school maintenance utility stuck in the Windows 7 era. Its interface follows Microsoft’s Fluent Design language closely, making FluentCleaner one of the best-looking Windows 11 cleanup apps we’ve seen in a while.
But the real highlight is the philosophy behind FluentCleaner. Its developer describes it as “CCleaner without the crap,” with a strong focus on transparency, open-source development, and the complete absence of bundled junk, telemetry, or those classic “click here to boost your PC by 347%” promises.
Instead of behaving like yet another scareware-style optimizer, FluentCleaner clearly shows exactly what it plans to clean and leaves the final decision entirely in the user’s hands.
That’s also where FluentCleaner really stands out: the way it handles cleanup selection after a scan. Similar functionality already exists in tools like BleachBit and Microsoft PC Manager, but not in such a targeted and granular way.
Here, the entire process feels faster, cleaner, and unmistakably more “Windows 11.” Scan results are organized into clear categories with detailed breakdowns for each browser, app, or system service, allowing users to enable, disable, or clean individual items with a single click.
That makes a surprisingly big difference in everyday use. Instead of digging through a chaotic technical list or vague categories like “Temporary Files,” users can clearly decide what should actually be cleaned — browser cache, Windows Update logs, leftover app traces, and much more.
More importantly, this targeted approach — combined with clear storage indicators shown everywhere in MB or GB — also helps reduce the risk of over-cleaning.
In other words, you get a much clearer picture of what’s about to be deleted before hitting the Run Cleaner button, which fits perfectly with the transparency-first philosophy behind this open-source Windows app.
Overall, FluentCleaner doesn’t promise fake gaming FPS boosts or magical “make your PC fly again” nonsense. What it does offer is a genuinely useful maintenance tool that handles both targeted and system-wide cleanup without unnecessary complexity.
Put simply, this is a tool for users who actually want control over their system and need to recover storage space intelligently — especially on PCs with limited SSD capacity, where every spare gigabyte starts feeling surprisingly valuable.
Finally, FluentCleaner also includes a particularly useful “Post-clean tasks” system. When enabled, it can automatically run additional Windows maintenance commands after each cleanup session.
For example, FluentCleaner can run additional disk cleanup routines, open Storage Sense automatically, or even restart File Explorer so changes take effect immediately.
In practice, it works as a lightweight automation feature aimed at more advanced users. The default commands are generally safe, but it’s still a good idea to avoid pasting random commands from the internet into the list — because whatever gets added there will run automatically after every cleanup session. And, as Windows users have learned over the years, “harmless tweak” can sometimes translate to “see you in Safe Mode.”
Download ZIP / Extensions
You can download the Windows app directly to your PC by clicking here or through its GitHubrelease page under Assets > FluentCleaner-win-x64.zip (44.5 MB).
It doesn’t include an installer or make any registry changes during setup. That means there’s no “Next → Next → Finish” routine to deal with. You simply extract the archive and run the .exe file.
Another feature that helps FluentCleaner stand out is its support for extensions.
These extensions aren’t included by default, but installing them is fairly straightforward. You just download the Extensions.zip file directly to your PC by clicking here or grabbing it from the project page.
After downloading, you extract the archive. Next, move the entire Extensions folder into the main FluentCleaner-win-x64 directory.
Once that’s done and you restart the app, the new features appear inside the gear/puzzle icon in the left sidebar.
Here’s a quick look at what these extensions actually add to the app:
Post-setup cleanup: This is the tool you’ll want right after setting up Windows or after a major Windows Update. It includes critical actions like removing Windows.old (freeing up tens of GB) and running Component Store Cleanup, which safely trims down the system component store.
Win11 Debloat: A quick way to get rid of those preinstalled apps that love sitting in your Start menu whether you asked for them or not.
Boot Access Helper: Instead of guessing whether your laptop uses F2, Del, or something more ‘creative,’ this extension helps you jump straight into the BIOS/UEFI settings.
Win11IsBusted: A built-in troubleshooting assistant for Windows 11 issues that works like a repair and reset wizard when things start breaking.
Create Restore Point: Think of this as your safety net — it creates a system restore point so you can roll back if something breaks.
ChrisTitusApp: A powerful integration with the well-known Windows Utility toolkit, allowing bulk app installs, advanced tweaks, update management, and more.
One important note, though, when it comes to this powerful third-party tool. Beyond the basic Install option, if you’re not 100% sure what a specific ChrisTitus feature does, it’s better to leave it alone and do a quick search online first. This is one of those cases where a few curiosity-driven clicks can quickly turn into ‘why is my system doing that?’
Is FluentCleaner Worth It?
At the end of the day, FluentCleaner isn’t trying to reinvent Windows maintenance — it’s trying to make it better.It takes a powerful but often messy ecosystem of cleanup tools and wraps it in a modern, Windows 11-native interface that actually makes sense.
It won’t magically transform your PC into a rocket ship, but it will give you something arguably more valuable: control, clarity, and a cleaner system without the usual guesswork. For users who care about storage, transparency, and a no-nonsense approach to cleanup, it’s absolutely worth a look.
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