Psi is unclaimed —

Psi

Instant messaging as free and open as it should be.·psi-im.org

Free · Open source

Psi is a free, open-source instant messaging application designed for the XMPP network. It is fast and lightweight, compatible with Windows, Linux, and macOS, and supports full Unicode text, localizations, easy file transfers, and customizable iconsets. It connects users to the open XMPP IM network used by groups such as Google Talk, LiveJournal, and Portugal Telecom. Advanced features include SSL encryption and end-to-end encryption via OpenPGP, OMEMO, or OTR.

What it's for

Chatting with anyone on the XMPP networkFile transfersMulti-user chat with admin controlEncrypted messaging over public WiFiEnd-to-end encrypted conversationsCustomizing IM appearance with iconsets and emoticons

Features 14

Cross-platform support for Windows, Linux, and macOS
Customizable iconsets and emoticons
Customizable toolbars and keyboard shortcuts
Dock badges on macOS
Easy file transfers
End-to-end encryption via OpenPGP, OMEMO, or OTR
Full Unicode support
Localizations in almost twenty languages
Multi-user chats with full admin control
Open-source codebase open to volunteer contributions
Remote client control support
SSL encryption of communication with compatible IM servers
Support for avatars
System tray icon integration on Windows

At a glance

free tieropen source

TypeDesktop app

DeploymentInstalled (local)

PlatformsWindows, macOS, Linux

No company, integrations, or compliance data published yet.

Psi

What it's for

Features 14

At a glance

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