Disk Tree is a cross plattform utility to visually show the disk space used by folders, subfolders and files.
Just open the executable, browse for a folder and hit start. The data is shown during processing so you can already have a peek at the data while it still runs. If the scan encounter files or folders that are not accessible, it will skip them and mark them. There are some settings in the menu that allow you to modify how the date is presented.
This application uses the fyne framework and Go. So make sure you have the required dependencies.
Alternatively, you can develop in a container and build the application there and download it to test or, if you have an X Window System forwarded to your host (eg. when using WSL2), you can directly open the application from the container.
As build system, gotaskr is used. Best experienced in VSCode with the gotaskr extension.
See build/build.go for the tasks that are available and support you with building.