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    122 repositories

    • Signal-iOS

      Public
      A private messenger for iOS.
      Swift
      •
      GNU Affero General Public License v3.0
      •3.2k•11k•98•16•Updated Jun 20, 2025Jun 20, 2025

    • Signal-Message-Backup-Tests

      Public
      Signal Message Backup shared client integration test cases
      Kotlin
      •5•5•0•0•Updated Jun 20, 2025Jun 20, 2025

    • ContactDiscoveryService-Icelake

      Public
      C
      •
      GNU Affero General Public License v3.0
      •16•39•2•0•Updated Jun 20, 2025Jun 20, 2025

    • Signal-Desktop

      Public
      A private messenger for Windows, macOS, and Linux.
      TypeScript
      •
      GNU Affero General Public License v3.0
      •2.8k•15k•806•29•Updated Jun 20, 2025Jun 20, 2025

    • Signal-Android

      Public
      A private messenger for Android.
      Kotlin
      •
      GNU Affero General Public License v3.0
      •6.4k•27k•356•15•Updated Jun 18, 2025Jun 18, 2025

    • Signal-Server

      Public
      Server supporting the Signal Private Messenger applications on Android, Desktop, and iOS
      Java
      •
      GNU Affero General Public License v3.0
      •2.3k•9.9k•10•0•Updated Jun 18, 2025Jun 18, 2025

    • 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
      •537•4.5k•11•1•Updated Jun 18, 2025Jun 18, 2025

    • Signal-Pods

      Public
      Pods dependency tracker for Signal-iOS
      C
      •83•62•0•2•Updated Jun 17, 2025Jun 17, 2025

    • tus-server

      Public
      An implementation of the TUS server protocol for resumable uploads
      TypeScript
      •
      GNU Affero General Public License v3.0
      •17•55•0•1•Updated Jun 16, 2025Jun 16, 2025

    • webrtc

      Public
      C++
      •
      BSD 3-Clause "New" or "Revised" License
      •79•158•0•0•Updated Jun 13, 2025Jun 13, 2025

    • Signal-Calling-Service

      Public
      Forwards media from 1 group call device to N group call devices.
      Rust
      •
      GNU Affero General Public License v3.0
      •76•443•0•0•Updated Jun 13, 2025Jun 13, 2025

    • boring

      Public
      BoringSSL bindings for the Rust programming language.
      Rust
      •130•17•1•1•Updated Jun 13, 2025Jun 13, 2025

    • SecureValueRecovery2

      Public
      C++
      •
      GNU Affero General Public License v3.0
      •17•48•1•0•Updated Jun 6, 2025Jun 6, 2025

    • key-transparency-auditor

      Public
      Key transparency auditing server
      Java
      •
      GNU Affero General Public License v3.0
      •0•3•0•0•Updated Jun 5, 2025Jun 5, 2025

    • 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
      •3•15•0•0•Updated Jun 4, 2025Jun 4, 2025

    • ringrtc

      Public
      Rust
      •
      GNU Affero General Public License v3.0
      •145•574•2•0•Updated Jun 2, 2025Jun 2, 2025

    • 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
      •2•12•0•0•Updated May 12, 2025May 12, 2025

    • registration-service

      Public
      Registration Service for Signal
      Java
      •
      GNU Affero General Public License v3.0
      •30•27•0•1•Updated Apr 30, 2025Apr 30, 2025

    • Signal-TLS-Proxy

      Public
      Shell
      •
      MIT License
      •160•1k•2•4•Updated Apr 29, 2025Apr 29, 2025

    • maven

      Public
      46•28•1•0•Updated Apr 10, 2025Apr 10, 2025

    • AES-GCM-Provider

      Public
      A BoringSSL-backed AES-GCM provider for Android with support for "incremental" encryption/decryption
      Java
      •9•21•1•0•Updated Apr 10, 2025Apr 10, 2025

    • Mock-Signal-Server

      Public
      TypeScript
      •
      GNU Affero General Public License v3.0
      •16•31•1•1•Updated Apr 9, 2025Apr 9, 2025

    • storage-service

      Public
      Java
      •
      GNU Affero General Public License v3.0
      •58•38•0•0•Updated Apr 8, 2025Apr 8, 2025

    • simple-grpc

      Public
      A gRPC server code generator and runtime designed for ease of service implementation
      Java
      •
      GNU Affero General Public License v3.0
      •0•3•0•0•Updated Apr 8, 2025Apr 8, 2025

    • curve25519-dalek

      Public
      Rust
      •27•40•1•3•Updated Apr 1, 2025Apr 1, 2025

    • mp4san

      Public
      A Rust MP4 format sanitizer
      Rust
      •
      MIT License
      •7•15•3•0•Updated Mar 11, 2025Mar 11, 2025

    • parchment

      Public
      Generalized state model for rich-text editors to interface with browser DOM
      TypeScript
      •
      BSD 3-Clause "New" or "Revised" License
      •153•0•0•0•Updated Mar 10, 2025Mar 10, 2025

    • quill

      Public
      Quill is a modern WYSIWYG editor built for compatibility and extensibility
      TypeScript
      •
      BSD 3-Clause "New" or "Revised" License
      •3.5k•0•0•0•Updated Mar 10, 2025Mar 10, 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
      •5•13•0•0•Updated Mar 6, 2025Mar 6, 2025

    • better-sqlite3

      Public
      JavaScript
      •
      MIT License
      •46•95•2•2•Updated Feb 14, 2025Feb 14, 2025