What is the difference between Convert.ToBase64String(byte[]) and HttpServerUtility.UrlTokenEncode(byte[])?

Question

I\'m trying to remove a dependence on System.Web.dll from a Web API project, but have stumbled on a call to HttpServerUtility.UrlTokenEncode(byte[] input) (and its

Answer 1

HttpServerUtility.UrlTokenEncode(byte[] input) will encode a URL safe Base64 string. In Base64 +, / and = characters are valid, but they are not URL safe, this method will replace these characters whereas the Convert.ToBase64String(byte[] input) will not. You can probably drop the reference and do it yourself.

Usually, '+' is replaced with '-' and '/' with '_' padding '=' is just removed.

Accepted answer here gives a code example: How to achieve Base64 URL safe encoding in C#?