You can log in to Snapchat online by visiting Snapchat.am and entering your Snapchat user name and password. Logging in to Snapchat online will log you out of the app, as only one medium can be used at a time.
Snapchat.am is not affiliated with the official Snapchat application and is an independent website that acts as a bridge between the app and the Web. Prior to using Snapchat online, you should have already downloaded the mobile app and registered for a Snapchat account. Data is not backed up when Snapchat is used online and is deleted on a daily basis.