Hello Robert,

The reason for Fiddler Everywhere to appear was the need from multiple users to have better collaboration options, including sharing snapshots of captured traffic, transferring Composer collections, sharing Auto Responder rules, all that across different operating systems. 

One of the primary purposes of Fiddler Everywhere is to provide those collaboration functionalities, and for that to happen, a login is needed (to prevent spam, to have reasonable quotas, to be able to send snapshots to your teams with a known and trusted identity). The collaboration functionalities across different accounts with different plans are also better handled with a login system.

As a side note, the team is currently researching the option to provide an anonymous login option (but with fewer collaboration options) for Fiddler Everywhere, so stay tuned for more updates in the next releases.

Regards,
Nick Iliev
Progress Telerik

Hello Sunbreak Wang,

With Fiddler Everywhere, you could use Google authentication to create a unique Fiddler account and use it with your existing Google account. Alternatively, you could use the Fiddler Everywhere credentials which will be unique and won't be associated with other services (including Progress login).

Regards,
Nick Iliev
Progress Telerik

Hi Duncan,

Fiddler Everywhere will use its own authentication system and will require a new username/password (or to use a Google Auth). The existing Telerik login credentials can't be used for login into Fiddler Everywhere. Thank you for pointing out that this is missing from the documentation - I will add it to the requirements page shortly.

Regards,
Nick Iliev
Progress Telerik