Filelight is a free graphical disk usage analyzer part of the KDE Gear set of applications. It shows directories that take up lots of space on the user's computer, and lets the user delete them. The app supports Windows and Unix-like systems and is open source.
Instead of showing a tree view of the files within a partition or directory, or even a columns-represent-directories view like xdiskusage, it shows a series of concentric pie charts representing the various directories within the requested partition or directory and the amount of space they use. This method is known as a multilevel pie chart, sunburst chart or ring chart. Users may also on the pie-chart segment representing a particular directory and repeat the analysis for that directory, right click that segment to open a file manager or terminal emulator in that location, or copy to clipboard or delete the directory, and right click the segment representing a file to open it, copy it to the clipboard, or delete it.
What is Filelight?
Filelight by KDE e.V. is open-source Windows software. It is written in C++. Besides Windows, it is available for Linux.
Installation and requirements
The publisher provides EXE (NSIS) installers for 64-bit Windows. The main installer is 91.0 MB. It can be installed for the current user only, without administrator rights. A silent install is possible with the installer’s documented switches.
Updates and version history
The current version is 26.08.2, released on October 12, 2026. The version history goes back to February 28, 2026: 3 releases, all linked to the official files. The last update is less than a month old.
Popularity and file types
Wikipedia has an article about it in 5 of our languages.
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Installs without administrator rights
- Updated in the last two months
- Also runs on Linux
Cons
- No native ARM64 build
In short: Filelight is an open-source Windows tool for 64-bit PCs. Administrators can deploy it unattended.
Screenshots
Is Filelight safe to download?
- The file is served by cdn.kde.org, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
F0972093D2A3B626F065162B4D3285C40A0C429E6DC6DC764853B39037CFD6A6· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 3 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 26.08.2Latest | October 12, 2026 | 91.0 MB | 64-bit EXE (NSIS)64-bit EXE (NSIS) |
| 26.04.3 | June 26, 2026 | — | 64-bit EXE (NSIS)64-bit EXE (NSIS) |
| 25.12.3 | February 28, 2026 | — | 64-bit EXE (NSIS)64-bit EXE (NSIS) |
Install from the command line
Silent install ›winget install --id KDE.Filelight -efilelight-release_26.08-2226-windows-cl-msvc2022-x86_64.exe /SRelated guide: How to use winget: install and update apps
Information
- Publisher
- KDE e.V.
- Licence
- GPL-2.0-or-later
- Price
- Free
- Written in
- C++
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- EXE (NSIS)
- Other platforms
- Linux
- Version
- 26.08.2
- Released
- October 12, 2026
- Added to the catalogue
- February 28, 2026
- Versions listed
- 3
- Website
- apps.kde.org
- winget ID
- KDE.Filelight
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is Filelight free?
Yes. Filelight is open-source software under the GPL-2.0-or-later licence.
Is Filelight safe to download?
The download comes from cdn.kde.org, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Filelight with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Filelight be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does Filelight run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of Filelight?
The versions page lists all 3 versions with links to their official installer files, back to February 28, 2026.
Can I use Filelight without administrator rights?
Yes, there is a per-user installer that does not need administrator rights.
