I'm looking for useful advice on whether autocomplete should be disabled or not on mobile browsers specifically for inputs in a username field.

I already have: <input type="email" name="signin-email" autocorrect="off" autocapitalize="off">

What is the current support for autocompleting email addresses and usernames?

  • Especially annoying is when the username is my full email address, and it specifically won't remember it.
    – aslum
    Feb 9, 2015 at 19:17

2 Answers 2


Is there any specific reason to disable autocomplete?

if not, disabling that would add a 'little' dislike to your site.

Username should be enabled for autocompletion, Which is more true for mobile browsing, where typing is still quite challenging except the young users.

  • Consider the major age category of your users. If that's over 25, typing on mobile is quite cumbersome. Add to that, someone may be using very small-display mobile.
  • Usually, email-address is quite a long "word" to type in, where the mobile keyboard can't help with "auto-predict".
  • A mobile is much more personal than a PC, so is its browser. So, filling up a username field wrongfully will be very rare.
  • I think your question simply addresses this. There isn't a specific reason to disable it, so it's better to keep it. Thanks. Feb 10, 2015 at 20:16

I advise keeping autocomplete unless you/your users would be concerned about it for security reasons. In general, autocomplete is convenient for users so they don't need to waste time typing their info (especially on mobile).

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