As a plugin developer, I create hidden post meta all the time and sometimes I need to see it to debug it. This does what it says it does, and well. Its simple and hasn't been updated for a while, but I'm glad it exists! PS: If you need someone to take this one over, let me know. I'll keep it tested and updated if you're unable to.

As I've used various plugins to augment my woocommerce site over the years, users/customers and other items gather meta data that occasionally needs to be modified. This is the ONLY easy way to do it that i've found. Bravo!!! Simple and works.

Simple and does the job. You see hidden custom fields just as you can see regular custom fields. Great tool if you want to delete hidden meta fields.