ChatterSyn is a Chatterino-style chat client for streamers, moderators and viewers who follow a stream on both Twitch and YouTube. It shows both live chats in one merged feed and sends what you type to either chat, or both.
- One tab per stream: a Twitch channel and a YouTube live chat side by side
- A Stream tab that follows your own channel and connects when you go live
- Twitch, 7TV, BTTV and FFZ emotes, animated, with an emote picker
- Twitch badges, replies, and user cards with recent messages
- Moderation from the user card on both platforms, where you have mod rights
- Highlights, mentions, search, chat logs, hotkeys, and dark or light themes
Reading Twitch chat needs no account. To send messages, read YouTube chat or moderate, sign in with Twitch or Google from Settings → Accounts.
Install
macOS (Apple Silicon, macOS 14.4 or later), with Homebrew:
brew tap smitht06/chattersyn brew trust smitht06/chattersyn brew install --cask chattersyn
Linux (Ubuntu, Debian, Mint), from the APT repository:
curl -fsSL https://chattersyn-apt.pages.dev/chattersyn.gpg \ | sudo gpg --dearmor -o /usr/share/keyrings/chattersyn.gpg echo "deb [signed-by=/usr/share/keyrings/chattersyn.gpg] https://chattersyn-apt.pages.dev stable main" \ | sudo tee /etc/apt/sources.list.d/chattersyn.list sudo apt update && sudo apt install chattersyn
Windows and every other download: the latest release on GitHub.