How to remove .html from URL?

I think some explanation of Jon's answer would be constructive. The following:

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d

checks that if the specified file or directory respectively doesn't exist, then the rewrite rule proceeds:

RewriteRule ^(.*)\.html$ /$1 [L,R=301]

But what does that mean? It uses regex (regular expressions). Here is a little something I made earlier...

I think that's correct.

NOTE: When testing your .htaccess do not use 301 redirects. Use 302 until finished testing, as the browser will cache 301s. See https://stackoverflow.com/a/9204355/3217306

Update: I was slightly mistaken, . matches all characters except newlines, so includes whitespace. Also, here is a helpful regex cheat sheet

Sources:

http://community.sitepoint.com/t/what-does-this-mean-rewritecond-request-filename-f-d/2034/2

https://mediatemple.net/community/products/dv/204643270/using-htaccess-rewrite-rules

To remove the .html extension from your urls, you can use the following code in root/htaccess :

RewriteEngine on


RewriteCond %{THE_REQUEST} /([^.]+)\.html [NC]
RewriteRule ^ /%1 [NC,L,R]

RewriteCond %{REQUEST_FILENAME}.html -f
RewriteRule ^ %{REQUEST_URI}.html [NC,L]

NOTE: If you want to remove any other extension, for example to remove the .php extension, just replace the html everywhere with php in the code above.

Also see this How to remove .html and .php from URLs using htaccess` .