Tool for formatting HTML code?

Question

HTML

There is a page of static HTML5 code.
Is there a tool (preferably an online tool) for pretty code formatting (tabs, etc.)?
It is important that this tool only formats the code nicely, and does not change the doctype and rearrange/change tags.

Answer 1

prettydiff.com/

Answer 2

You can use HTML Tidy Online
In principle, almost any modern IDE contains tools for auto-formatting code.

Answer 3

In Eclipse, with the appropriate settings, you can do Code > Format.
In WebSrorm - Code > Reformat.
Both understand the html5 doctype very well, but neither are online tools.

Answer 4

I recommend this service.

Answer 5

polystyle is an offline thing and not sure about html5 out of the box. but there you can add all the tags, emnip.

Answer 6

freeformatter , there are many more interesting things

Answer 7

www.myfirstsite.ru/tools/htmlformat

Answer 8

Maqetta.org is a powerful monster! Open source
rendera.heroku.com - a minimalistic option