The library only provides Base64 decoding functions, because the .NET library already has fast Base64 encoding functions. We support both Span<byte> (ASCII or UTF-8) and Span<char> (UTF-16) as input.

I have used the codeunit "Base64 Convert" with the function "ToBase64". I have also used the dotnet "Convert" with the function "ToBase64String" but the result is the same. The result is that a line ...