To decode Base64, use the following command: ```powershell PS > [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String("XYZ")) <decoded string> ``` To encode string into base64, use the following command: ```powershell PS > [System.Convert]::ToBase64String([System.Text.Encoding]::UTF8.GetBytes("nVnV")) <base64 encoded string> ``` ### See also 1. [[Base64 Encoding]] ### Reference 1.