Thanks to Kristi Anderson and Madan Kumar from scalegrid.io for publishing a feature overview of some of the available PostgreSQL clients. The article is from 2019, but HeidiSQL is new in this comparison. As a lightweight tool it compares quite good with the commercial ones.
Ads were blocked - no problem. But keep in mind that developing HeidiSQL, user support and hosting takes time and money. You may want to send a donation instead.