What is pgadmin4?

pgAdmin 4 is an open-source desktop and web application for managing PostgreSQL databases. PostgreSQL is a widely used database system, and pgAdmin gives you a visual interface to work with it: creating tables, running queries, viewing data, managing users, and monitoring what is happening inside the database. It is the most popular administration tool for PostgreSQL and has been around in various forms for many years, with version 4 being a complete rewrite of the older pgAdmin 3. The application can run in two modes. In desktop mode, it launches as a standalone program on your computer using a technology called Electron, which wraps the web interface in a native window. In server mode, it runs as a web server that multiple users can connect to through a browser, making it suitable for shared team environments or hosting on a company's internal network. The technical stack is Python on the backend using a framework called Flask, and React on the frontend for the browser interface. For developers who want to build it from source, the README walks through installing Node.js, Python, yarn, and PostgreSQL, then running commands to compile the JavaScript assets and start the Python server. For most users, the easier path is to download a pre-built installer for their operating system directly from the pgAdmin website, rather than building from this source code. The repository is primarily for contributors, packagers, and developers who need to modify or extend pgAdmin itself. If you are a non-technical user who received a link to this project, the short version is that pgAdmin is a free, visual tool for browsing and editing database contents, similar in spirit to a spreadsheet interface but built specifically for PostgreSQL databases.