I have tried almost all possible solutions for getting a trailing slash in my url but somehow it seems to conflict with the rest of my rules RewriteEngine On

I am trying to go from example.com/filename to example.com/filename/

### START WWW & HTTPS  # ensure www. RewriteCond %{HTTP_HOST} !^www\. [NC] RewriteRule ^ https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]  # ensure https RewriteCond %{HTTP:X-Forwarded-Proto} !https RewriteCond %{HTTPS} off RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]  ### END WWW & HTTPS RewriteBase / RewriteRule ^([^.?]+[^.?/])$   $  1/ [R=301,L] RewriteCond %{DOCUMENT_ROOT}/$  1.php -f RewriteRule ^(.*[^/])/?$   /$  1.php [QSA,L]  RewriteRule ^index\.php$   / [R=301,L]  #1)externally redirect "/file.php" to "/file"    RewriteCond %{THE_REQUEST} /([^.]+)\.php [NC] RewriteRule ^ /%1 [NC,L,R] #2)Internally map "/file" back to "/file.php" RewriteCond %{REQUEST_FILENAME}.php -f RewriteRule ^(.*?)/?$   /$  1.php [NC,L] 

Domainname.com/example still does not automatically go to domainname.com/example/ Is is driving me nuts!