ConvertFrom-Base64

Converts a base-64 encoded string back into its original string.

Syntax

ConvertFrom-Base64 [-Value] <String[]> [[-Encoding] <Encoding>] [<CommonParameters>]

For some reason. .NET makes encoding a string a two-step process. This function makes it a one-step process.

You're actually allowed to pass in $null and an empty string. If you do, you'll get $null and an empty string back.

Name	Type	Description	Required?	Pipeline Input	Default Value
Value	String[]	The base-64 string to convert.	true	true (ByValue)
Encoding	Encoding	The encoding to use. Default is Unicode.	false	false	([Text.Encoding]::Unicode)

ConvertFrom-Base64 -Value 'RW5jb2RlIG1lLCBwbGVhc2Uh'

Decodes RW5jb2RlIG1lLCBwbGVhc2Uh back into its original string.

ConvertFrom-Base64 -Value 'RW5jb2RlIG1lLCBwbGVhc2Uh' -Encoding ([Text.Encoding]::ASCII)

Shows how to specify a custom encoding in case your string isn't in Unicode text encoding.

'RW5jb2RlIG1lIQ==' | ConvertTo-Base64

Shows how you can pipeline input into ConvertFrom-Base64.