# syphon-org/syphon

⚗️  a privacy centric matrix client

Repository: https://github.com/syphon-org/syphon
Canonical: https://ross.abutalabs.com/products/syphon
Homepage: https://syphon.org
Language: Dart
License: AGPL-3.0
License Family: copyleft
Topics: flutter, dart, privacy, matrix, e2ee, redux, encryption, linux
Last push: 2024-08-05T13:09:26+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 2524, "days_push": 758, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1061, forks 69 (observed 2026-08-28T04:03:25.880861+00:00)

## What it is
Syphon is a privacy-centric, open-source Matrix chat client built with Flutter/Dart, featuring end-to-end encryption via Olm/Megolm and no analytics or tracking. It is currently in open alpha and available on Android, iOS, Linux, and Flathub.

## Use cases
- chat on the matrix protocol with a privacy-focused client
- send end-to-end encrypted messages without analytics or tracking
- use a matrix client on android, ios, and linux
- avoid proprietary chat platforms in favor of a federated protocol
- customize chat app themes and appearance
- minimize metadata exposure when messaging

## When to choose
- you want a privacy-first, no-analytics matrix client across mobile and desktop
- you prefer open-source software with e2ee via Olm/Megolm
- you want to support decentralized, federated messaging over proprietary platforms

## When to avoid
- you need proven, independently verified security for everyday use (it is in open alpha)
- you need a mature, feature-complete matrix client like Element
- you require voice/video calls or advanced matrix features not yet implemented

## Facets
- artifact type: application
- maturity: experimental
- function: chat-interface, cryptography, security
- domain: privacy, messaging-platforms, cross-platform, self-hosted
- platform: cross-platform
- tags: matrix-client, e2ee, flutter, dart, open-alpha, no-analytics, federated-messaging, android, ios, linux, mobile, desktop

## Member repositories
- syphon-org/syphon (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:25.880861+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:56:52.485996+00:00, confidence not recorded.
  - readme: https://github.com/syphon-org/syphon (fetched 2026-08-28T04:03:25.880861+00:00, sha 3695f3b44b07)
  - homepage: https://syphon.org (fetched 2026-08-29T12:58:36.491818+00:00, sha baf6d67cc837)
  - site_page: https://syphon.org/about (fetched 2026-08-29T12:58:36.501133+00:00, sha 5992850d2e3f)
  - site_page: https://syphon.org/under (fetched 2026-08-29T12:58:36.503216+00:00, sha baf6d67cc837)
- Data as of 2026-08-30T08:39:29.467469+00:00.