Textual

Textual is the most popular app on macOS for interacting with Internet Relay Chat (IRC) chat rooms. The app requires macOS Sierra (10.12) or later.

Textual has a pixel-refined user interface, offering both dark and light look options, as well as complementary styles for a beautiful, vivid experience. Textual supports powerful modern technologies such as the latest IRCv3 specification, native IPv6, client-side certificate authentication, and more, while providing an easy-to-navigate, clutter-free experience.

Textual places a high value on user privacy, employing recognized, proven technologies like Offline Message Encryption (OTR) to ensure that only the people you wish can read your conversations. Additionally, Textual is highly customizable, supporting not only styles using open standards but also plugins built in various programming languages such as AppleScript, Objective-C, Swift, PHP, Python, Perl, Ruby, and Shell.

also includes address book, auto-completion for nicknames, commands, and channels, auto-highlight spam protection, text formatting, conversation tracking, filters, highly customizable notifications, display media content like images, videos, YouTube, etc. in chats, powerful rule-based ignore matching, powerful integrations with ZNC and similar bouncers, quick navigation for fuzzy search, rich keyboard shortcuts, SOCKS4, SOCKS5, and HTTP proxy support, Simple authentication and security layer (SASL), speech synthesizer for the visually impaired, support for sending self-signed certificates for authentication, verification of untrusted certificates and trust designation support, text emoji-to-emoji conversion, and the ability to view multiple channels simultaneously.