How can I browse my Heroku database?
If you want to browse your Heroku PostgreSQL database using a browser there is now a free tool for that called Heroku Data Explorer:https://datazenit.com/heroku-data-explorer.html
It uses Heroku API in real time so your data/credentials stay secure and private. Also it has excellent performance because Heroku local network is used for database connections.
Download PgAdmin 4 and configure your heroku database credentials. Right click on Servers link and choose create >> server. On General tab give Name as per your wish and on Connection tab enter Hostname/address, address, Maintenance database (database name), Username and password which is given in Heroku dabase credentials page. And you will be able to access heroku dadabase on UI free of cost.