Is there any significant difference between the two? Do they behave differently with other languages?

Maybe. .html is more popular. Just so long as the <!DOCTYPE HTML> is at the top I think, you’ll be fine. Take a look at this. http://www.differencebetween.net/technology/internet/difference-between-htm-and-html/

Not really. They are the same thing. The only reason why some places use .htm is that some servers don’t like 4 letter extensions.

Oh so it depends on the servers I see. Good to know. I personally like .htm cause its short and all. But I guess I’ll change to .html before changing to it becomes a must. Thanks for the link tho. :slight_smile:

Right. Now a days, servers can take 4 letter extensions, so it doesn’t really matter to have 3 letter ones. You’ll probably never have to worry about it, unless you are dealing with some old stuff.

Yeah probably not. I saw it in a W3schools tutorial (JS coding conventions to be specific) that file extensions should be .html not .htm and that raised questions.

And here I thought that I outsmarted everyone by omitting that last letter lmao. I honestly thought that .htm came as an upgrade or something. Since I started learning in the era of HTML5 with its many upgrades being applauded everywhere, I thought this was one of them (You just can’t tell).

That last comment was my general opinion. Still, it’s definitely more common to put .html.

Yeah I got you. Thanks for clearing up the confusion I had. Don’t know if I’ll be collaborating with anyone yet but I’ll be sure to use what the general public uses to be uniform (though HTML extensions will be the last thing I’ll be worried about).

The extensions are probably going to be the last thing yes. Haha.

HTML extensions: .html or .htm?

Programming HTML-CSS

zapcannon99 August 4, 2018, 9:16pm 8

Basically, if you put .htm as the extension, people will think you’re an old archaic programmer.

Topic		Replies	Views
Is there any difference between .htm and .html?	2	460	June 1, 2021
Should I Consider Old Versions?	3	519	January 16, 2021
Doctype html, big diff	4	938	January 16, 2021
Separating Languages & Code Files HTML-CSS	4	549	March 9, 2021
First line of html HTML-CSS	3	520	January 31, 2023

HTML extensions: .html or .htm?

Related topics