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    126 repositories

    • ringrtc

      Public
      Rust
      •
      GNU Affero General Public License v3.0
      •158•627•3•0•Updated May 20, 2026May 20, 2026

    • Signal-Desktop

      Public
      A private messenger for Windows, macOS, and Linux.
      TypeScript
      •
      GNU Affero General Public License v3.0
      •3k•16k•846•48•Updated May 20, 2026May 20, 2026

    • Signal-iOS

      Public
      A private messenger for iOS.
      Swift
      •
      GNU Affero General Public License v3.0
      •3.4k•12k•110•28•Updated May 20, 2026May 20, 2026

    • Signal-Server

      Public
      Server supporting the Signal Private Messenger applications on Android, Desktop, and iOS
      Java
      •
      GNU Affero General Public License v3.0
      •2.5k•11k•10•1•Updated May 19, 2026May 19, 2026

    • Signal-Android

      Public
      A private messenger for Android.
      Kotlin
      •
      GNU Affero General Public License v3.0
      •6.7k•29k•471•17•Updated May 19, 2026May 19, 2026

    • Signal-Calling-Service

      Public
      Forwards media from 1 group call device to N group call devices.
      Rust
      •
      GNU Affero General Public License v3.0
      •82•459•1•0•Updated May 19, 2026May 19, 2026

    • Signal-Message-Backup-Tests

      Public
      Signal Message Backup shared client integration test cases
      Kotlin
      •7•7•0•0•Updated May 18, 2026May 18, 2026

    • Signal-Pods

      Public
      Pods dependency tracker for Signal-iOS
      C
      •88•63•0•2•Updated May 18, 2026May 18, 2026

    • Signal-TLS-Proxy

      Public
      Shell
      •
      MIT License
      •195•1.2k•2•4•Updated May 18, 2026May 18, 2026

    • libsignal

      Public
      Home to the Signal Protocol as well as other cryptographic primitives which make Signal possible.
      Rust
      •
      GNU Affero General Public License v3.0
      •721•5.8k•12•4•Updated May 16, 2026May 16, 2026

    • webrtc

      Public
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •79•171•0•0•Updated May 12, 2026May 12, 2026

    • SecureValueRecovery2

      Public
      C++
      •
      GNU Affero General Public License v3.0
      •23•61•1•1•Updated May 2, 2026May 2, 2026

    • storage-service

      Public
      Java
      •
      GNU Affero General Public License v3.0
      •63•48•0•1•Updated May 2, 2026May 2, 2026

    • key-transparency-auditor

      Public
      Key transparency auditing server
      Java
      •
      GNU Affero General Public License v3.0
      •4•7•0•3•Updated May 1, 2026May 1, 2026

    • tus-server

      Public
      An implementation of the TUS server protocol for resumable uploads
      TypeScript
      •
      GNU Affero General Public License v3.0
      •28•75•0•2•Updated May 1, 2026May 1, 2026

    • storage-manager

      Public
      Manage objects inside a cdn
      TypeScript
      •
      GNU Affero General Public License v3.0
      •14•19•0•2•Updated May 1, 2026May 1, 2026

    • key-transparency-server

      Public
      Key transparency server
      Go
      •
      GNU Affero General Public License v3.0
      •8•16•2•5•Updated May 1, 2026May 1, 2026

    • mp4san

      Public
      A Rust MP4 format sanitizer
      Rust
      •
      MIT License
      •9•17•3•0•Updated Apr 28, 2026Apr 28, 2026

    • ContactDiscoveryService-Icelake

      Public
      C
      •
      GNU Affero General Public License v3.0
      •23•49•2•5•Updated Apr 22, 2026Apr 22, 2026

    • Mock-Signal-Server

      Public
      TypeScript
      •
      GNU Affero General Public License v3.0
      •16•36•1•1•Updated Apr 16, 2026Apr 16, 2026

    • SparsePostQuantumRatchet

      Public
      Provides SPQR, a chunked post-quantum ratchet usable in parallel with DH ratchets for the libsignal protocol.
      F*
      •
      GNU Affero General Public License v3.0
      •18•64•4•0•Updated Mar 23, 2026Mar 23, 2026

    • node-sqlcipher

      Public
      A fast N-API-based Node.js addon wrapping sqlcipher and FTS5 segmenting APIs.
      TypeScript
      •
      GNU Affero General Public License v3.0
      •8•20•0•0•Updated Mar 17, 2026Mar 17, 2026

    • simple-grpc

      Public
      A gRPC server code generator and runtime designed for ease of service implementation
      Java
      •
      GNU Affero General Public License v3.0
      •3•4•0•2•Updated Mar 1, 2026Mar 1, 2026

    • boring

      Public
      BoringSSL bindings for the Rust programming language.
      Rust
      •159•17•0•0•Updated Feb 19, 2026Feb 19, 2026

    • noise-c

      Public
      Public fork of https://github.com/rweather/noise-c
      C
      •
      MIT License
      •107•5•0•1•Updated Feb 4, 2026Feb 4, 2026

    • registration-service

      Public
      Registration Service for Signal
      Java
      •
      GNU Affero General Public License v3.0
      •37•34•0•1•Updated Dec 19, 2025Dec 19, 2025

    • emoji-search-index

      Public
      Static assets used for to generate a search index for emoji within Signal.
      GNU Affero General Public License v3.0
      •9•19•0•1•Updated Oct 14, 2025Oct 14, 2025

    • tungstenite-rs

      Public
      Lightweight stream-based WebSocket implementation for Rust.
      Rust
      •
      Apache License 2.0
      •279•3•0•0•Updated Sep 22, 2025Sep 22, 2025

    • Signal-Sqlcipher-Extension

      Public
      A sqlcipher extension for crypto provider.
      Rust
      •
      GNU Affero General Public License v3.0
      •6•2•0•0•Updated Aug 15, 2025Aug 15, 2025

    • minimask

      Public
      TypeScript
      •
      GNU Affero General Public License v3.0
      •2•3•0•0•Updated Jul 17, 2025Jul 17, 2025
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