Free platform / software for hosting webinars?

Question

Distance learning

I lead a circle for children on HTML, CSS, PHP, MySQL.
Interested in the possibility of conducting remote classes: software or a ready-made platform for this. You need to share your screen and broadcast sound to ~10 students and receive messages from the chat.
I can run it all for myself, tk. there is an external ip.

Answer 1

BigBlueButton is a good solution. It's actually a matter of habit. Always used DimDim, there are up to 20 (I think) people for free. Convenient and simple ... You can put all this on your server, but why ...

Answer 2

Use search before asking questions. Here's from the free one. Here is a paid solution

Answer 3

use dim dim
www.dimdim.com/

Answer 4

For simple tasks, yatv.ru will do.

Answer 5

Ruweber.ru - the service itself is paid, but there is a free version for just 10 people