.htm or .html extension - which one is correct and what is different?

html naming-conventions filenames
user21067 picture user21067 · Sep 26, 2008 · Viewed 28.3k times · Source

When I save a file with an .htm or .html extension, which one is correct and what is different?

Answer

William Keller picture William Keller · Sep 26, 2008

Neither is wrong, it's a matter of preference. Traditionally, MS software uses htm by default, and *nix prefers html.

As oded pointed out below, the .htm tradition was carried over from win 3.xx, where file extensions were limited to three characters.

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