Convert Base64, hex, UTF-8, encoding, urlencode, htmlencode

To convert data format can be used class Convert.

Use Base64 format to store binary data in a short text string. Don't use Base64 in file names and URLs because it is case-sensitive and may contain character '/'.

var b = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
var s = Convert.ToBase64String(b);
print.it(s, Convert.FromBase64String(s));

Use Hex format to store binary data in a case-insensitive text string. It can be used in file names and URLs.

s = Convert.ToHexString(b);
print.it(s, Convert.FromHexString(s));

Another way to create a Hex string.

print.it(BitConverter.ToString(b));

Convert C# string (UTF-16) to UTF-8.

string utf16 = "Abc";
byte[] utf8 = Encoding.UTF8.GetBytes(utf16);
print.it("utf8", utf8);

Convert UTF-8 to C# string (UTF-16).

print.it("utf16", Encoding.UTF8.GetString(utf8));

Use System.Net.WebUtility functions to encode/decode URL parameters or HTML. See also internet.urlAppend.

var ue = System.Net.WebUtility.UrlEncode("one, two");
print.it(ue);

string p1 = "one, two", p2 = "three, four";
var url1 = internet.urlAppend("https://httpbin.org/get", "p1=" + p1, "p2=" + p2);
print.it(url1);