Port 5000

Q: What is port 5000?

Flask development server or UPnP control port Port 5000 is primarily known as the default Flask (Python) development server port (flask run). It is also used by the UPnP (Universal Plug and Play) control point protocol and Docker Registry. On macOS Monterey and later, this port is used by the AirPlay Receiver, which can cause conflicts with Flask development servers — a common frustration for macOS developers.

Flask

Flask development server or UPnP control port

Port

5000

Protocol

TCP

Service

Flask

Security

Safe

Full name: Flask Development Server / UPnP

What is port 5000?

Port 5000 is primarily known as the default Flask (Python) development server port (flask run). It is also used by the UPnP (Universal Plug and Play) control point protocol and Docker Registry. On macOS Monterey and later, this port is used by the AirPlay Receiver, which can cause conflicts with Flask development servers — a common frustration for macOS developers.

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