"I'm looking to automaticly indent by tabs XML group tags."
Check XML Indenter plugin.

"Also indent Javascript's "if", functions etc."
Select what you want to indent and press C+i (or Edit > Indent > Indent lines).

LET'S SAY I HAVE THIS :

<rss version="2.0">
<channel><title>title</title> <link>link</link>
<description>description</description> <language>English</language>
<lastbuilddate>Mon, 28 Nov 2005 06:53:38 GMT</lastbuilddate> <item>
<title>title</title> <link>link</link> <description>description</description>
<author>author</author> <category>category</category> <guid
ispermalink=false>12345</guid> </item> </channel> </rss>

AND I WANT IT TO LOOK LIKE THIS :

<rss version="2.0">
        <channel><title>title</title>
        <link>link</link>
        <description>description</description>
        <language>English</language>
        <lastbuilddate>Mon, 28 Nov 2005 06:53:38 GMT</lastbuilddate>

         <item>
                  <title>title</title>
                  <link>link</link>
                  <description>description</description>
                  <author>author</author>
                  <category>category</category>
                  <guid ispermalink=false>12345</guid>
         </item>
         </channel>
</rss>

I tried the Line Indent function but it didn't change anything.
I also tried the Beautify plugin and didn't work either.

At least here XML Indenter works for your example, after you correct that xml and place that parameter value in quotes. (...<guid ispermalink="false">...)

Ok. Thanks very much for helping. But that doesn't fix .JS or .HTML hierarchy. I'm looking for the same Format function BBedit has in Markup>Utilities>Format. It then asks you for a couple of settings and makes your scripts look goood and clean. BBedit is Mac only. I want this function on my PC

I'm having the same issue. Can't seem to indent html code that is already written. Any resolve?

You can try the Beauty Plugin.

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