# Which extension is right? HTM or HTML?
**URL:** https://forum.kirupa.com/t/which-extension-is-right-htm-or-html/351944
**Category:** web dev
**Created:** [October 22, 2014, 7:00am UTC](https://forum.kirupa.com/t/which-extension-is-right-htm-or-html/351944 "2014-10-22T07:00:53Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@dion90](https://forum.kirupa.com/u/dion90)
#### Post date: [October 22, 2014, 7:00am UTC](https://forum.kirupa.com/t/which-extension-is-right-htm-or-html/351944/1 "2014-10-22T07:00:53Z")
I am new in web developer… While designing a web site we can either use HTM or HTML, but which is more appropriate? and why?Considering future versions of HTML or other scripting, programming languages, which extension of HTM or HTML is valid to use?
Thanks
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### Author:  [@senocular](https://forum.kirupa.com/u/senocular)
#### Post date: [October 22, 2014, 4:49pm UTC](https://forum.kirupa.com/t/which-extension-is-right-htm-or-html/351944/2 "2014-10-22T16:49:51Z")
Both are valid. Technically, html is more correct, since it is an HTML document, but htm works all the same. HTM just adheres to the 3 character extension format, which really doesn’t matter in these modern times that we live in.
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### Author:  [@krilnon](https://forum.kirupa.com/u/krilnon)
#### Post date: [October 22, 2014, 5:43pm UTC](https://forum.kirupa.com/t/which-extension-is-right-htm-or-html/351944/3 "2014-10-22T17:43:00Z")
IMO, you might as not well not serve either extension. I’d rather see [http://example.com/cool-article-title](http://example.com/cool-article-title) than [http://example.com/coolarticle-title.html](http://example.com/coolarticle-title.html)
Browsers care more about [w]MIME[/w] types than the ends of URLs which _look like_ file extensions, but aren’t.
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### Author:  [@MariahAlbert](https://forum.kirupa.com/u/MariahAlbert)
#### Post date: [December 16, 2014, 8:11am UTC](https://forum.kirupa.com/t/which-extension-is-right-htm-or-html/351944/5 "2014-12-16T08:11:29Z")
Both of them are correct. HTM is just for 3 characters extension format…
Mariah Albert
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### Author:  [@krilnon](https://forum.kirupa.com/u/krilnon)
#### Post date: [December 16, 2014, 11:09pm UTC](https://forum.kirupa.com/t/which-extension-is-right-htm-or-html/351944/6 "2014-12-16T23:09:34Z")
I’m closing this thread since it seems to be a spam magnet.
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### Author:  [@krilnon](https://forum.kirupa.com/u/krilnon)
#### Post date: [December 16, 2014, 11:09pm UTC](https://forum.kirupa.com/t/which-extension-is-right-htm-or-html/351944/7 "2014-12-16T23:09:45Z")
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### Author:  [@TheCanadian](https://forum.kirupa.com/u/TheCanadian)
#### Post date: [December 17, 2014, 6:56am UTC](https://forum.kirupa.com/t/which-extension-is-right-htm-or-html/351944/8 "2014-12-17T06:56:00Z")
Oh really? 🏃♂️
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### Author:  [@krilnon](https://forum.kirupa.com/u/krilnon)
#### Post date: [December 17, 2014, 7:30am UTC](https://forum.kirupa.com/t/which-extension-is-right-htm-or-html/351944/9 "2014-12-17T07:30:09Z")
You’re special. ❄ Also, I didn’t actually write the second post myself; it’s autogenerated when you close a thread. (I could have saved myself some time if I had known that would happen. ☹ )
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### Author:  [@senocular](https://forum.kirupa.com/u/senocular)
#### Post date: [December 17, 2014, 10:05pm UTC](https://forum.kirupa.com/t/which-extension-is-right-htm-or-html/351944/10 "2014-12-17T22:05:05Z")