If you have the need to delete all your meta fields from your WordPress site, then there are basically two ways you could go about it. You could manually delete your meta fields. You could use a plugin. Or you could go into your database and delete your meta fields from there.
We’ll go over each method below.
No matter which method you choose, of course, you should first back up your database in case something goes wrong and you end up deleting things you don’t want to delete.