How to set HTML Auto Indent format on Sublime Text 3?

Hello

To auto indent on Sublime text 3 with a key bind try going to
Preferences > Key Bindings - users

And adding this code between the square brackets

{"keys": ["alt+shift+f"], "command": "reindent", "args": {"single_line": false}}

 it sets shift + alt + f to be your full page auto indent.

remove extra lines spaces in sublime

Select the text

Press:

Ctrl + H on PC, or

Command + Alt + F on Mac or

Click Find->Replace.

Make sure you have selected 'regular expression' by pressing:

          Alt + R on PC or
    Command + Alt + R or
    Click .* in the Find box.

Find what: ^\n

Replace With: (nothing, leave in blank).