Here you can find some useful application to look for big files on disk for Windows and Linux. These disk tools are all free software, and very useful to find big files on disk and free disk space.

On Windows: WinDirStat

• Download and install WinDirStat
• Run WinDirStat on your disks (it will take time)
• You’ll see a coloured map of file occupation by file type

On Linux command line: ncdu

• On Ubuntu / Debian
  • apt-get install ncdu
  • cd /dir/to/check
  • ncdu

• On CentOS / Fedora / RedHat
  • yum install ncdu
  • cd /dir/to/check
  • ncdu

ncdu screenshot by dev.yorhel.nl: Official Website

Press c to show the number of files / directories contained inside each directory, and C to sort them for number of items, pressing ? will show all available shortcuts.

On Linux with window manager

• CentOS / Fedora / RedHat
  • apt-get install k4dirstat
• On Ubuntu / Debian
  • yum install k4dirstat

Again, you’ll see a coloured map of file occupation by file type.

Official website

Screenshot by yuenhoe.com