StreamerTools

Software to setup interactions and automations scripts over lot of services from Twitch and YT, to Pulsoid, MixItUp, VoiceMod and many more. Have community extensions.

interactionsscriptsautomationsoftware

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Twitch API relay to localhost chat, alerts, and lot of more widgets. Good documentation and a community module forum.

Free
Restream

Restream

restream.io

RTMP relay to every streaming provider. Easy tool to simulcast, with agragete chat widget and tools.

Free + Paid