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Syphon

Privacy-focused Matrix client built with Flutter

Matrix & XMPP ★ 1.1k stars Easy setup AGPL-3.0

Syphon is a Matrix messaging client that emphasizes privacy and a calm, distraction-free interface, built with Flutter for desktop and mobile. It supports end-to-end encryption out of the box.

Official siteSource code

Key features

  • Privacy-first Matrix client
  • End-to-end encryption
  • Distraction-free design
  • Desktop and mobile

Strengths

  • Released under the AGPL-3.0 license
  • Easy to set up — beginner-friendly
  • Active community (1.1k GitHub stars)
  • Written in Dart

Is Syphon secure?

OSV.dev has no published security advisories for Syphon's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

Source: OSV.dev, checked 2026-10-14. How this is measured.

Syphon replaces

Self-hosted WhatsApp alternativesSelf-hosted Discord alternatives

Health badge

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SelfHostIndex: 14 · at risk

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The score is recomputed on every nightly rebuild from public repository data — see how it is calculated.

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