How to remove “/category/” from permalinks?

Change the permalink structure from this:

/%category%/%postname%/

To this:

/%postname%/

From the codex: https://codex.www.ads-software.com/Using_Permalinks#Using_only_.25postname.25

%postname%
A sanitized version of the title of the post (post slug field on Edit Post/Page panel). So “This Is A Great Post!” becomes this-is-a-great-post in the URI (see Using only %postname%). Starting Permalinks with %postname% is strongly not recommended for performance reasons.

I have had issues doing it that way, such as previous/next links not working anymore and I cannot remember what else.

I found this but have not tested it: https://www.wprecipes.com/how-to-remove-category-from-your-wordpress-url

There are also plugins.

https://www.ads-software.com/extend/plugins/wp-no-category-base/
https://www.ads-software.com/extend/plugins/pathless-category-links/

Off Topic: Thanks for the great Sitemap plugin Dagon Design

BPartch: Nice work – I did not remember that it was not recommended ?? Glad you like my plugin!