I'm a former Sequel Pro developer and I wrote a Postgres client for OS X: https://eggerapps.at/pgcommander/

I'm currently working on version 2.0 which includes a table structure editor: https://eggerapps.at/pgcommander-prerelease/

For us, better support for editing hstore and json/jsonb values is a must. Add that and we might become customers.

This is on my roadmap for next year. Drop me a line at [email protected] and I'll send you a note once it's ready.

If you're looking for a general JSON editor - there's a nice online one at: https://json-csv.com/editor

So great! Is there a way to register (i.e. pay) for v1 and get v2 when it comes out?

Yes! All v1 licenses bought on my website after September 1st will be valid for v2. See https://eggerapps.at/pgcommander/faq.html