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This question already has an answer here:

I am developing a new web application and was wondering if I should have people pick their usernames and login with their usernames or should I have them login via their email addresses.

Which option provides a better user experience and why?

marked as duplicate by Matt Obee, Community Apr 21 '15 at 14:03

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  • Welcome to UX.SE. This is a good question but it has been asked before. If, after reading the previous question, you still have issues please post the revised question. – Mayo Apr 21 '15 at 13:58
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IMHO this mostly depends on personal priorities, whether you/ the user prefers to use your username or your email address to login to a website.

For a project I just implemented the option to use either your username or your email address to login – and I suppose that nowadays actually many websites allow to use either or.

[edit] Some additional thought: I just checked xing.com and linkedin.com and plus.google.com and ello.co and pinterest.com – but they all ask for the email address. At least they suggest to use the email address – maybe it would also be possible to login entering the username. So maybe it actually is a bit more user friendly for both user and site admin in case somebody forgets his/her password.

In this quick round-look I could only find twitter.com offering login through email address or username or phone number.

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It's hard to say which would provide a better experience and I would say it depends on your app and what it is.

Email addresses are useful as users should already remember then and they don't have to think about anything. This is useful if you don't have a "username" on your app.

Example: Paypal or Dropbox, where no user name is needed to use these apps and the email is the best way to connect with other people.

PayPal Login

But if you are going to be building an app where the username is important and the user creates an identity that is crucial to your app then logging in with a user name may be better.

A good example of a user name would be internal tools for a company, where everyone uses a username to log in to their PC and various other tools.

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Of course, you can offer a user the option to enter either (and you detect if the input is a username or email address) and allow them to login.

Facebook allows you to use your phone or email.

Facebook allows you to use your phone or email.

Twitter allow you to use your username, email or phone Twitter allow you to use your username, email or phone

  • I often have no idea what email address I have used for a subscription, but my user names are small in number. Usually the one you see below. Outrageous password requirements generally force me to look up credentials in any case. Don't get me started on security questions..... – mckenzm Jun 13 '15 at 18:10