Psi+
Psi+: A free, open-source XMPP client for desktop users who value federation and customization. Ranked #8 of 36 in Decentralized Messaging Apps by our editors (8.6/10); pricing: Free plan; best for desktop users preferring federated XMPP messaging.
At a glance
- Editor score8.6 / 10
- PricingFree plan
- Best forDesktop users preferring federated XMPP messaging
- Free planYes
- Paid fromFree
- Network architectureFederated
- Facts checked22 Oct 2026
Where it wins
- Connects to federated XMPP servers for one-to-one and group chats
- Offers file transfers, plugins, and customizable interface controls
- Free and open source, with Windows, macOS, and Linux builds
Where it doesn't
- Desktop-only; no mobile platform is listed
- Encryption options may vary by build and plugin
- Community support may not suit users seeking direct assistance
Our verdict on Psi+
Psi+ is a desktop XMPP client for people who want messaging across the federated XMPP network. It supports one-to-one conversations and multi-user chat rooms, with builds for Windows, macOS, and Linux. Its free, open-source model makes it a fit for solo users and small teams who prefer a desktop client and want to choose an XMPP server rather than use a single centralized messaging service.
The feature set combines core messaging with practical customization. Users can manage contacts through a roster with avatars and presence information, transfer files, and adjust the interface, toolbars, and keyboard shortcuts. Plugins add options such as autoreply and anti-spam. That breadth is useful for people who want control over their desktop messaging environment, though Psi+ remains focused on XMPP chat rather than a broader collaboration suite. It is a less suitable choice for users who need mobile coverage or a wider set of built-in collaboration features.
Encryption deserves a careful look before adoption. Psi’s documented options include OpenPGP, OMEMO, and OTR, but the available support can vary by build and plugin. Psi+ is described as the development branch of Psi, so users should check the relevant build and plugin documentation for the options they need. Support is community-based. Choose Psi+ if a free desktop XMPP client, federated messaging, group rooms, and configurable controls match your workflow; consider alternatives if you require mobile apps, guaranteed availability of a particular encryption option, or direct support.
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Psi+ pricing
Psi+ fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Network architecture | Federated |
| End-to-end encryption | Yes |
| Self-hosting | No |
| Supported platforms | Windows, macOS, Linux |
| Group chat | Yes |
| Account required | Not verified |
| Deployment | Desktop |
| Platforms | Windows, macOS, Linux |
| Support | Community |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | psi-im.org |
| Facts checked | 22 Oct 2026 |
Alternatives to Psi+
- ElementA Matrix-based collaboration app with encrypted messaging and flexible deployment options.9.4
- Delta ChatA free, open-source messenger with default end-to-end encryption across desktop and mobile.9.2
- SimpleX ChatPrivate messaging with encrypted chats, calls, files and groups—without profile identifiers.9.1
Psi+ vs the competition
Compare Psi+ with any tool side by side →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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