Psi

Qt-based cross-platform XMPP client for experienced users, with plugins, theming, and encrypted chat.

Desktopfree

Psi is a Qt-based XMPP (Jabber) chat client for experienced users, available on Linux, Windows, macOS, and other platforms. It supports file sharing, audio/video calls, customizable interfaces and theming, and encrypted messaging via OpenPGP, OTR, and OMEMO plugins. Aimed at users who want a highly configurable, privacy-conscious alternative to mainstream chat apps.

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Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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