File System Structure - Application Data (%APPDATA%)

> File (System, Transfer, Storage)

1 - About

Application Data (APPDATA) is a hidden folder where application can saved their data for one user. To share data between several user, the ProgramData folder should be used.


3 - OS

3.1 - Windows

  • Default Location
  • Environment variable

Process (OS) - Environment Variable

  • Structure

The appdata folders contains three subfolders



  • local contains data that will stay on the computer (cache, big file..
  • localLow contains data that may be used even in Protected mode (with more restricted security settings)
  • roaming is the data that would roam (ie sync from computer to computer) after a user login on the same domain

3.2 - Linux

  • The appdata equivalent for linux is a hidden home sub-directory with the name of the application


  • ~ is a shortcut for home

4 - Documentation / Reference