I'm afraid that there is no way to read your texts online. You must use your mobile to read all texts, and the only exceptions are MMS (Multimedia Messaging Service) messages. If your phone does not support MMS messages (picture messages), you will be given a link to a website where you can view these messages. If you're looking to read a MMS message that you've been sent, then browse to the link that has been sent to you in your text. You will have to sign in with the code that was also sent in the message to view the picture. Any service telling you that you can read your text messages from the internet is a scam, so make sure you avoid these. Some mobile providers will let you see which numbers you have sent and received texts from, and you can access this when you are signed in on their website.
