Chatwoot is an open-source omnichannel customer support platform. Live chat, email, social media, and messaging channels in one dashboard. Self-host for free or use the managed cloud from $19/mo.
Papercups is an open-source live chat widget built in Elixir. Embed a lightweight chat widget on your site, manage conversations in a shared inbox, and integrate with Slack. Self-host or use the cloud version.