There was a need to work with the MS SQL database, but I did not want to install and understand the complex SQL Management Studio program, and this product turned out to be very easy to install and use. For more then 2 month i've used the tool haven't came across any issues.
pgAdmin - pgAdmin Website
DBeaver - DBeaver - Universal Database Manager and SQL Client.
MySQL Workbench - MySQL Workbench is a unified visual tool for database architects, developers, and DBAs.
Adminer - Adminer (formerly phpMinAdmin) is a full-featured database management tool written in PHP.
DataGrip - Tool for SQL and databases
pgweb - Web-based PostgreSQL database browser written in Go. Pgweb is a web-based database browser for PostgreSQL, written in Go and works on OSX, Linux and Windows machines.