StreamerTools

Twelve47 create some widgets/games links to twitch. Emote combo, Chat cloud, chance wheel, hype train and more.

interactionsgamewidgetweb

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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.

Free

Streali is a streaming marketplace where you can find chat theme, music player or alert and install it in a minute

Free + Paid