Permalink Manager allows to control how the trailing slashes are used in WordPress permalinks. Based on your preference, in the plugin settings you can either:
- keep native settings
- force trailing slashes (and if needed auto-redirect permalinks without them) in all WordPress permalinks
- remove trailing slashes (and if needed auto-redirect permalinks with them) from all WordPress permalinks
It is also possible to exclude the specific post types & taxonomies from Permalink Manager trailing slashes settings. Here you can find more information on how to do do.