# matrix-org/synapse

Synapse: Matrix homeserver written in Python/Twisted.

Repository: https://github.com/matrix-org/synapse
Canonical: https://ross.abutalabs.com/products/synapse
Homepage: https://matrix-org.github.io/synapse
Language: Python
License: Apache-2.0
License Family: permissive
Topics: python, matrix-org
Archived: true
Last push: 2024-04-26T15:47:23+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4405, "days_push": 859, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 12103, forks 2115 (observed 2026-08-28T04:10:51.755069+00:00)

## What it is
Synapse is the reference Matrix homeserver, an open-source server implementing the Matrix protocol for federated, end-to-end-encrypted communication including messaging and VoIP. It is written in Python/Twisted and, while this original repository is now in maintenance mode, development continues at element-hq/synapse.

## Use cases
- self-host a Matrix chat server
- run a federated messaging server
- host encrypted group chat for my organization
- bridge my chat with other platforms via Matrix
- set up a decentralized alternative to Slack or Discord
- deploy a Matrix homeserver with Docker

## When to choose
- you want the most mature and feature-complete Matrix homeserver
- you need federation with the wider Matrix network
- you want a battle-tested server with extensive documentation and Docker/Debian packaging

## When to avoid
- you need a lightweight, low-resource homeserver (consider Conduit or Dendrite)
- you want the newest features, since active development moved to element-hq/synapse
- you need a non-Python stack or embedded deployment

## Facets
- artifact type: service
- maturity: maintenance
- function: http-server, websocket, api-framework, auth, cryptography, self-hosted
- domain: self-hosted, networking, privacy
- platform: python, self-hosted
- tags: matrix-homeserver, federation, chat-server, voip, e2ee, twisted, decentralized-communication, messaging, real-time, docker, linux, web-server

## Member repositories
- matrix-org/synapse (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:51.755069+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 2026-08-29T17:14:56.190799+00:00, confidence not recorded.
  - readme: https://github.com/matrix-org/synapse (fetched 2026-08-28T04:10:51.755069+00:00, sha e1cfdf5d6772)
  - homepage: https://matrix-org.github.io/synapse (fetched 2026-08-29T08:12:12.510845+00:00, sha 621aeffa77a4)
- Data as of 2026-08-30T08:39:29.467469+00:00.