WebRTC is described as 'project that provides applications with Real-Time Communications (RTC) capabilities via simple APIs' and is an app in the Network & Admin category. There are six alternatives to WebRTC for a variety of platforms, including Android, iPhone, Mac, Windows and Linux. The best alternative is Element. It's not free, so if you're looking for a free alternative, you could try Librem Chat or gevent. Other great apps like WebRTC are Autobahn (Free, Open Source), Dust (Free) and Conduit (Free, Open Source).
Element is a secure collaboration and messaging app based on the Matrix protocol. It’s decentralised to deliver digital sovereignty, and based on an open standard for easy connections and interoperability. It is end-to-end encrypted by default.
Librem Chat – end-to-end encrypted chat, VOIP, and video calling used by millions of people * Chat rooms * Share images, videos, and files * Make voice and video calls * Keep your conversations secret with end-to-end encryption * Free and open-source software
Conduit is a simple, fast and reliable chat server powered by Matrix. Conduit is an alternative to Synapse and tries to be lightweight and easy to install, but it is still in development. What is Matrix?