Unhog

Reclaim space on your disk hogged by OneDrive, Dropbox, SharePoint offline files.

Unhog draws a SpaceMonger-style treemap of the files in a cloud-synced folder that actually occupy local disk space. "Files On-Demand" keeps most files online-only; Unhog shows only the hydrated ones, so you can see where the local space goes and free it up.

The treemap fills in while the folder is being scanned, so large folders can be explored right away, with a progress bar showing how far the scan has got. Optionally the free space on the drive is drawn next to the folder, on the same scale, to show how much the local copies matter.

Download

Download Unhog.zip (latest release)

Requires Windows 10 or 11. No installation needed. All releases, with release notes, are listed on the releases page. Each release also offers Unhog.exe, the same program packed into a single file; it is handy for copying around, but Windows Defender is more likely to mistrust it, so the zip is the recommended download.

The files are not code-signed. When you run Unhog the first time, Windows SmartScreen may show "Windows protected your PC". Click More info, then Run anyway. If Defender removes the file as a suspected threat instead (a false positive that new unsigned programs sometimes trigger), open Windows Security, Protection history, find the entry and choose Restore or Allow.

Run

Unzip Unhog.zip anywhere, for example into your Documents or Downloads folder. This creates a folder named Unhog. Open it and double-click Unhog.exe. It scans your OneDrive folder and shows the treemap.

Keep Unhog.exe together with the _internal folder next to it; the program does not run if the exe is copied out on its own. To put it on the desktop or Start menu, right-click Unhog.exe and create a shortcut.

To scan a different folder, use the Browse... button, or start it from a command prompt with the folder as argument:

Unhog.exe D:\Other

Install with pip

If Python 3.9 or later is installed, Unhog can also be installed from PyPI instead of downloading the zip:

pip install unhog
unhog

or, to keep it in its own environment, pipx install unhog. The unhog command takes the same optional folder argument as the exe. Windows Defender and SmartScreen have nothing to say about this route, since no unsigned exe is involved.

Freeing up space

Unhog only shows where the space goes; it does not delete or change anything. To free the space a file or folder uses, right-click it in Unhog and choose Open folder in Explorer (the item is selected there), then in Explorer right-click it and choose Free up space. The file stays in the cloud and is downloaded again when you open it. Back in Unhog, right-click the folder and choose Rescan to see the result without scanning everything again.

How to use

Hover a rectangle for details, double-click a folder to zoom in, right-click for options. The toolbar filters by modification time, size and local storage. All controls and settings are explained in USAGE.md.

How it works

Unhog asks Windows which files in the folder are online-only placeholders and which are actually present on disk. It reads only the directory listing and never opens files, so scanning does not download anything.

It is tested with OneDrive, OneDrive for Business (SharePoint), and Dropbox but it should be compatible with other cloud storage providers as well.

Privacy

Unhog runs entirely on your PC, does not connect to the internet, and does not send any information anywhere.

For developers

Running from source, tests, building the exe and making releases are described in DEVELOPMENT.md.

License

MIT