ncdu is a disk usage scanning tool, similar to DaisyDisk
ncdu /Users/ww/Downloads
# Just enter the path you want to scan after ncdu, / means scanning the entire disk

However, ncdu is only available on Mac and Linux platforms and does not have a Windows version.
After some searching, I found gdu has similar functionality and supports Linux, Mac, and Windows platforms.
The experience is almost the same as ncdu. After installation,
gdu /
# To avoid a conflict with `coreutils`, `gdu` has been installed as `gdu-go`.
# On macOS, you need to use gdu-go
gdu-go /
gdu launched!
Windows Installation
Windows is recommended to install via the scoop package manager
scoop install main/gdu
You can also directly download and install the precompiled version from GitHub
Linux and macOS Installation
Use the appropriate package manager to install, for example,
brew install gdu