Yes. Synthesia and PeerTube are free or have a free plan, according to the pricing each company publishes. Free plans usually carry limits; each product page links to the company's terms.
Which European video hosting tools are open source?
PeerTube publishes its source code under an open-source licence. Each product page shows the licence and where the code is.
Which European video hosting tools can you host yourself?
PeerTube can be run on your own servers, according to its own documentation.
