Overview
WeeChat is a lightweight, highly extensible terminal-based chat client that supports IRC, Matrix (via plugin), Slack (via plugin), XMPP, and more through its plugin architecture. It features a powerful scripting API in Python, Perl, Ruby, and Lua, a built-in relay protocol that lets web frontends connect, and can run persistently in a terminal multiplexer like tmux or screen. Configuration is done via text files or in-client commands.
Where it falls short of Slack
- Terminal-only; no native graphical UI, making onboarding difficult for non-technical users.
- Third-party plugins are required for any non-IRC protocol, and plugin quality and maintenance vary.
- No file sharing, image preview, video calls, or rich message formatting out of the box.
- Configuration is fully text-based with a steep learning curve for advanced setups.
We list the gaps honestly so you can decide if the trade-off is worth owning your data.
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