The best alternatives to Copper Chat are Savvy, Tico 2.0 - Powercall, and Convoy. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Copper Chat?
AssemblyAI— Speech-to-Text API with superhuman accuracy
The easiest way to start a video conferencing. Everyone can build/join a video call room within just 2 clicks (less than 3 secs). Available for up to 20 members and 65 minutes without any registration or downloads.
If you're hosting a public video chat then it can attract unwanted attention from troublemakers. ClearChat helps you screen your guests by chatting with them before you let them into your chat, meeting or event. It's free and open source.