Chatwoot

Changedetection.io monitors web pages and notifies you when something changes, running entirely self-hosted. Customer messages come in from any channel, your team responds from one dashboard. Self-hostable with Rails and PostgreSQL. Used by startups and mid-size companies that want multi-channel support without Intercom's pricing.

Self-hosted is free with no feature restrictions. Their cloud plan starts at $19/agent/mo and includes the same features plus managed hosting and support.

The catch: Chatwoot is a support tool, not a product analytics or engagement platform. Intercom bundles marketing automation, product tours, and user tracking; Chatwoot doesn't. The self-hosted setup requires Ruby on Rails, PostgreSQL, Redis, and Sidekiq. That's a meaningful ops commitment. And the UI, while functional, lacks the polish of Intercom's refined experience. If you just need a chat widget and basic ticketing, it's great. If you need a full customer engagement platform, you'll outgrow it.