Restream
restream.ioRTMP relay to every streaming provider. Easy tool to simulcast, with agragete chat widget and tools.
web
You may also like
AskLive
asklive.coAskLive is an interface for live Q&A sessions that automatically gathers and displays questions
Free + Paid
OBS physics
physics-browser.vercel.appIt's your OBS... As a SOLAR SYSTEM!!! OBS physics can add gravity features to your sources. You can dock it and link with OBS WS.
Free