http://Qwebirc.Swiftirc.Net this one requires you to type in a nickname and the channel name (#coradyce)
http://www.coradyce.com/h7-irc-dice-right this one requires you to enter a nickname
http://en.irc2go.com/webchat/?net=SwiftIRC&room=coradyce which requires you to enter a nickname
2nd step:Next it should tell you to check your email, here is a picture
3rd step: Copy the confirmation code (highlighted in the picture above) then paste that code in IRC then hit enter.
4th step: You are now done whenever you open up irc make sure to type this /msg nickserv [password here]