A portable gate assembly provides a portable enclosure that can fit any doorway in order to confine kids and pets to a desired area. The assembly includes a pair of spaced posts and a flexible net coupled to and extending between the posts. A sound emitter is coupled to the net. The sound emitter has a sensor positioned therein. The sound emitter is operationally coupled to the sensor wherein the sound emitter emits an audible indicator upon the sensor sending a proximity signal to the sound emitter when an object or a user is within a predetermined distance of the net.