Redirection issue

Hello,

I want to redirect all urls ending with a trailing slash to non trailing slash versions.

https://example.com/post-example-1/
to
https://example.com/post-example-1

Actually I did it under settings —> permalinks.

Now I have to create 301 redirects in order not to loose search engine rankings.

I have more than 1500 posts, therefore I don’t want to create redirect rule individually for every post.

I am not familiar with wordpress regex. Can you please tell me what to write into source url and target url in your plugin?

Thanks in advance