ZNC

ZNC is an advanced IRC bouncer that maintains persistent connections to IRC networks while you are offline. It lets you reconnect later from one or multiple IRC clients without losing your session, with optional message playback and account management.

Key Features

• Persistent IRC connections so you can detach and reattach without losing presence
• Playback buffers with optional timestamps to replay messages missed while offline
• Multiple users, networks, and simultaneous clients per user
• Web-based administration (via the webadmin module) for managing users and settings
• Modular architecture with dynamically loadable modules (C++, Perl, Python, Tcl)
• SSL/TLS support for both client-to-bouncer and bouncer-to-IRC connections
• IPv4 and IPv6 support

Use Cases

• Keep IRC identity and channel presence while switching devices or disconnecting
• Consolidate multiple IRC networks behind a single always-on endpoint
• Provide shared IRC bouncer service for multiple users on a single host

ZNC is a mature, extensible choice for anyone who relies on IRC and wants reliable always-on connectivity, multi-client access, and configurable buffering and administration. Its module system makes it adaptable to many workflows, from simple personal use to multi-user deployments.