Textual is the world’s most popular application for interacting with Internet Relay Chat (IRC) chatrooms on macOS. Textual protects your privacy by leveraging widely accepted, proven technologies such as Off-the-Record Messaging (OTR) to ensure that the only people reading your conversations are those that you intend to.

Features:

Address Book for tracking when friends are online & offline
Auto-completion for nicknames, commands, and channels
Bold, color, italic, and underline text formatting
Built in support for converting text emoticons to emojis
Growl and native Notification Center support
Inline media embedding (Show images inline with chat)
Inline nickname colorization
Per-channel notification controls
Powerful, customizable, rule-based ignore matching
Powerful filters that can perform commands in response to input
Powerful ZNC integration for power users
Quick navigation using fuzzy searching
Rich array of keyboard shortcuts
SOCKS4, SOCKS5, and HTTP proxy support (with or without SSL)
Simple Authentication and Security Layer (SASL)
Support for sending self-signed certificates for authentication
Support for validating and specifying trust for untrusted certificates
Viewing multiple channels at the same time