pgAdmin 4 Overview
pgAdmin 4 is the free, open-source official administration and development platform for PostgreSQL, available for Windows, macOS, and Linux, and also as a web application. It provides a graphical way to manage PostgreSQL servers: browse database objects in a tree, run and analyze queries in a SQL editor with an explain-plan visualizer, edit data in a grid, manage users and permissions, and perform backup and restore. It supports the full range of PostgreSQL object types and is maintained by the PostgreSQL community. A query-tool history, a graphical row editor, and a server dashboard with live activity graphs support day-to-day administration, and it can manage multiple servers from one tree. The offline installer is the full setup and installs without a network connection, though it connects to servers when run. The official pgAdmin 4 download is linked on this page, straight from Pgadmin.