10.2k
API Security Web DevOps

Signal-Server

Backend server powering the Signal Private Messenger, ensuring secure, end-to-end encrypted messaging and calling across Android, Desktop, and iOS.

Signal-Server is built in Java, distributed under the GNU Affero General Public License v3.0, 10.2k GitHub stars, latest release v20251210.2.0.

When to use Signal-Server

Signal-Server is listed here as a API project. The directory calls out End-to-end encrypted messaging backend, Supports real-time message delivery and calls, Handles secure group and individual chats as capabilities associated with it.

Other recorded traits for Signal-Server include Cross-platform communication support (Android, iOS, Desktop), Robust privacy protections, Open source infrastructure.

Besides API, this page also files Signal-Server under Security, Web, DevOps.

Signal-Server compared with

Records in this directory name matrix-synapse, rocket.chat, mattermost, zulip as products people compare with Signal-Server. That list is editorial metadata, not a claim that Signal-Server replaces each of them.

What the Signal-Server stats reflect

GitHub currently shows 10.2k GitHub stars, 2.4k forks, 10 open issues, latest tracked release v20251210.2.0. Star and activity counts here are a snapshot used as a proxy for community adoption, not a quality score.

Stats refreshed

Language
Java
Latest Release
v20251210.2.0
License
GNU Affero General Public License v3.0

Our Newsletter

Get new API tools right in your inbox

Get short emails with useful api projects, releases, and repos worth watching.

Key features of Signal-Server

  • End-to-end encrypted messaging backend
  • Supports real-time message delivery and calls
  • Handles secure group and individual chats
  • Cross-platform communication support (Android, iOS, Desktop)
  • Robust privacy protections
  • Open source infrastructure

Recorded alternatives to Signal-Server

matrix-synapse rocket.chat mattermost zulip

Signal-Server on GitHub

Stars
10.2k
Open Issues
10
Forks
2.4k

Frequently asked questions

What is Signal-Server?

Backend server powering the Signal Private Messenger, ensuring secure, end-to-end encrypted messaging and calling across Android, Desktop, and iOS. This directory highlights End-to-end encrypted messaging backend, Supports real-time message delivery and calls, Handles secure group and individual chats.

Is Signal-Server free to use?

Signal-Server is published as open source under the GNU Affero General Public License v3.0. The directory lists End-to-end encrypted messaging backend, Supports real-time message delivery and calls, Handles secure group and individual chats among its recorded capabilities.

What language is Signal-Server written in, and what is the latest release?

Signal-Server is written primarily in Java. The latest release tracked on this page is v20251210.2.0.

How widely is Signal-Server used on GitHub?

Signal-Server has about 10.2k GitHub stars. It also has about 2.4k forks. Those counts are a snapshot of community attention, not a ranking of quality.

What do people compare Signal-Server with?

This directory records matrix-synapse, rocket.chat, mattermost, zulip as comparison points for Signal-Server.

Related tools