Decodes a base64 encoded string back to its original value.
Decodes a base64 encoded string back to its original value. Use this when a source system delivers a value in base64, for example a token or an identifier that was encoded for safe transport, and you need the readable original text back before you can use it. This is the exact reverse of the String: Base64 encode step. If the incoming value is not valid base64, the result may be unreadable rather than an error.