Filelight

Filelight helps users find disk space to free up by displaying file and folder usage as concentric rings. It can scan local, remote, and removable disks, then show detailed information about the files and folders it finds. Users can exclude selected folders, remote filesystems, or removable media from scans, and delete files or folders taking up too much space. Filelight integrates with the Dolphin, Konqueror, and Krusader file managers, and offers settings for scan behavior and appearance, including configurable color schemes. It can also be started from a command line with a folder name to scan that folder. The app is free and available for Linux and Windows. Linux users can install it through Discover or another AppStream store, a distribution package manager, or Flathub. The handbook cautions that scanning remote filesystems such as NFS or Samba mounts can generate high network traffic.

Filelight combines disk scanning with a visual usage display and file-level details. Its remote scan capability comes with a network-traffic caveat.

Filelight suits Linux and Windows users who want a visual view of disk usage and a way to inspect or remove space-consuming files. It can also suit people scanning removable media or remote filesystems, though remote scans may generate high network traffic.

Filelight is a disk-usage analyzer for Linux and Windows that turns folder hierarchies into concentric-ring maps. It suits people who think visually when tracking down storage problems, especially those managing local, removable, or network disks. Its zero-cost, open-source approach is compelling for focused cleanup, while network scans require care.

Filelight is most useful when you need to see where capacity is concentrated and then remove a specific file or folder. It is less suitable if you expect application-size reporting or a conventional, list-first analysis.

Overview

Choose a folder or disk and Filelight renders its contents as nested rings, with larger segments representing heavier use. This gives a quick sense of which branches deserve attention before you drill into file and folder information. Deletion is available from the same application, so identifying a target and reclaiming space do not require a separate utility.

Scanning covers local, remote, and removable disks. That range is valuable for administrators and anyone moving between internal and external storage, but a scan of an NFS or Samba mount can create high network traffic. Excluding particular folders, remote filesystems, or removable media lets you keep a scan narrower when bandwidth or scan time matters.

Key features

• Concentric-ring treemap: The visual hierarchy makes space-heavy branches stand out, helping users who find a graphical map more informative than a folder list. It is not the right fit for readers who want application-size figures, which Filelight does not provide.
• File and folder inspection: Detailed information identifies what each ring segment contains, turning a broad storage picture into a cleanup decision.
• Built-in deletion: Files and folders can be removed after inspection. That convenience also calls for care: deleting a large item is immediate action, not merely a report.
• Local, remote, and removable scans: Broad scan coverage supports mixed storage setups. Network-mounted locations should be scanned selectively because of the potential traffic load.
• Scan exclusions: Excluding folders, remote filesystems, or removable media helps prevent unwanted locations from affecting a scan.
• File-manager integration: Dolphin, Konqueror, and Krusader integration fits KDE workflows and makes Filelight a natural companion to those managers.
• Configurable presentation: Color schemes and scanning and appearance settings allow the display to be adjusted to personal preferences.
• Command-line launch: Starting Filelight with a folder name is useful for opening a targeted scan directly instead of navigating to it first.

Pricing

Filelight costs free on its single Filelight plan. It is a free and open-source application licensed under GPL-2.0+, with no trial period because the full application is already free. There are no paid tiers, seat allowances, renewal charges, or usage quotas to weigh.

This is the straightforward choice for individual users, organizations, and anyone wanting a disk analyzer without a purchase decision. The trade-off is scope rather than price: Filelight does not add a paid reporting or application-size tier for users who need those functions.

Platforms

Filelight runs on Linux and Windows. Linux users can install it through Discover or another AppStream store, a distribution package manager, or Flathub. Its KDE file-manager integrations are particularly relevant on Linux desktops using Dolphin, Konqueror, or Krusader.

Who it's for

Choose Filelight if you want a visual explanation of disk usage, need to inspect more than one kind of disk, and value direct deletion without a subscription. It is also a sensible fit for KDE users who already work in the supported file managers.

Look elsewhere if application sizes are central to your cleanup process, if you need a report-oriented list rather than a treemap, or if scanning network mounts while minimizing traffic is a priority.

Pros and cons

Pros

• Free and open source: The complete tool costs nothing and uses the GPL-2.0+ license.
• Clear visual hierarchy: Concentric rings reveal storage concentration faster than an undifferentiated folder browse.
• Actionable cleanup: File details and deletion are available in the same workflow.
• Wide scan scope: Local, removable, and remote disks are supported, with exclusions for tighter control.
• KDE integration: Dolphin, Konqueror, and Krusader users can keep the analyzer close to their existing file-management workflow.

Cons

• No application sizes: Users trying to identify which installed apps consume space will need another tool.
• Network-traffic risk: NFS and Samba scans can generate high traffic, making indiscriminate remote analysis unsuitable on constrained networks.
• Visual-first presentation: People who prefer a conventional size-sorted report may find the ring map less direct.
• Platform limits: There is no macOS or Android version.

Alternatives

Browse the Disk Space Analyzers list for more options. Pick TreeSize if you need a Windows-only freemium tool with a free trial. WizTree is the alternative for Windows or macOS users willing to support development with a $25 a month individual supporter code; those codes do not expire and provide a perpetual license for personal use.

WinDirStat is another free Windows choice for personal or commercial use. Choose FolderSizes if a Windows user wants a 30.00 USD perpetual Personal Edition license for personal and home-network use, with lower-priority support and no organizational use. SizeTrend fits Windows users who want free local-drive and folder analysis with cleanup recommendations and duplicate-file features.

Storage Analyser is the Android option; its free edition contains ads and Pro adds installed-app storage scanning. OmniDiskSweeper is a free macOS utility, while Disk Usage Analyzer is a free Linux desktop alternative.

Verdict

Filelight is a strong recommendation for Linux and Windows users who want a free, open-source visual map of storage and the ability to delete targets immediately. Choose it for broad local, removable, and remote scanning with KDE-friendly integration; look elsewhere when application-size reporting, list-based reports, or low-impact network scanning is more important.