RepoGuard
Updated 8 h ago
Signal

Organization

Public GitHub footprint of Signal

@signalapp
View profile on GitHub
Everywhere and nowhere

126

Public repositories

86,902

Total stars

10,137

Followers

The GitHub presence of signalapp showcases a wide range of repositories focused on secure messaging and cryptographic protocols. Their notable projects include Signal-Android, Signal-Desktop, and Signal-iOS, developed primarily in Java, C, Rust, and TypeScript. This organization's commitment to privacy and security is evident in their extensive public contributions.

Top languages

Java 26C 14Rust 13Objective-C 13TypeScript 8C++ 4Swift 3Kotlin 2

Public repositories

Signal-Android

28,906

A private messenger for Android.

Kotlin
Updated Jun 13, 2026

Signal-Desktop

16,347

A private messenger for Windows, macOS, and Linux.

TypeScript
Updated Jun 13, 2026

Signal-iOS

12,114

A private messenger for iOS.

Swift
Updated Jun 13, 2026

Signal-Server

10,587

Server supporting the Signal Private Messenger applications on Android, Desktop, and iOS

Java
Updated Jun 12, 2026

libsignal

5,820

Home to the Signal Protocol as well as other cryptographic primitives which make Signal possible.

Rust
Updated Jun 13, 2026

libsignal-protocol-javascript

1,961

This library is no longer maintained. libsignal-protocol-javascript was an implementation of the Signal Protocol, written in JavaScript. It has been replaced by libsignal-client’s typesafe TypeScript API.

JavaScript
Updated May 26, 2026

libsignal-protocol-java

1,856

No description provided for this repository.

Java
Updated Jun 9, 2026

libsignal-protocol-c

1,416

No description provided for this repository.

C
Updated Jun 6, 2026

Signal-TLS-Proxy

1,259

No description provided for this repository.

Shell
Updated Jun 10, 2026

BitHub

1,008

BTC + BitHub = An experiment in funding privacy OSS.

Java
Updated Jun 4, 2026

ringrtc

628

No description provided for this repository.

Rust
Updated Jun 9, 2026

libsignal-service-java

602

A Java/Android library for communicating with the Signal messaging service.

Java
Updated Mar 25, 2026

Signal-Calling-Service

459

Forwards media from 1 group call device to N group call devices.

Rust
Updated Jun 12, 2026

Flock

357

Private contact and calendar sync for Android.

Java
Updated Jun 3, 2026

ContactDiscoveryService

284

No description provided for this repository.

C
Updated Jun 11, 2026

SecureValueRecovery

274

No description provided for this repository.

Rust
Updated Sep 28, 2025

curve25519-java

238

Pure Java and JNI backed Curve25519 implementation.

C
Updated Apr 11, 2026

gradle-witness

231

A gradle plugin that enables static verification for remote dependencies.

Groovy
Updated May 5, 2026

SignalProtocolKit

214

This library is no longer maintained. SignalProtocolKit was an implementation of the Signal Protocol, written in Objective-C. It has been replaced by libsignal-client’s type safe Swift API.

Objective-C
Updated Mar 27, 2026

webrtc

171

No description provided for this repository.

C++
Updated May 12, 2026

PushServer

115

A microservice for communicating with push gateways.

Java
Updated Mar 18, 2026

WhisperYAFFS

106

Encrypted Filesystem Support For YAFFS2

C
Updated May 28, 2026

jobmanager

101

Android library for executing tasks.

Java
Updated Apr 16, 2026

better-sqlite3

99

No description provided for this repository.

JavaScript
Updated Apr 1, 2026

WebSocket-Resources

91

A Dropwizard library that lets you use Jersey-style Resources over WebSockets

Java
Updated May 5, 2026

tus-server

76

An implementation of the TUS server protocol for resumable uploads

TypeScript
Updated Jun 9, 2026

embedded-redis

69

Redis embedded server

Java
Updated May 13, 2026

SignalServiceKit

68

SignalServiceKit has moved to Signal-iOS. See README.md for details.

Objective-C
Updated Feb 6, 2025

SparsePostQuantumRatchet

66

Provides SPQR, a chunked post-quantum ratchet usable in parallel with DH ratchets for the libsignal protocol.

F*
Updated Jun 4, 2026

Signal-FTS5-Extension

64

A FTS5 extension for signal_tokenizer.

Rust
Updated May 11, 2026

Signal-Pods

63

Pods dependency tracker for Signal-iOS

C
Updated Jun 10, 2026

SecureValueRecovery2

60

No description provided for this repository.

C++
Updated Jun 11, 2026

signal-ringrtc-node

53

No description provided for this repository.

TypeScript
Updated Jun 2, 2025

ContactDiscoveryService-Icelake

49

No description provided for this repository.

C
Updated Apr 22, 2026

storage-service

48

No description provided for this repository.

Java
Updated Jun 11, 2026

gcm-sender-async

48

Asynchronous Google Cloud Messaging (GCM) Library

Java
Updated Apr 5, 2026

curve25519-dalek

43

No description provided for this repository.

Rust
Updated Apr 11, 2026

zkgroup

42

No description provided for this repository.

Unknown Language
Updated May 16, 2026

libsignal-protocol-rust

41

No description provided for this repository.

Rust
Updated May 10, 2026

Mock-Signal-Server

37

No description provided for this repository.

TypeScript
Updated Jun 12, 2026

Argon2

37

No description provided for this repository.

Java
Updated Sep 27, 2025

Curve25519Kit

37

Key agreement (X25519) and signing (ed25519), X25519 keys.

C
Updated Feb 3, 2025

SignalCoreKit

36

No description provided for this repository.

Swift
Updated Jun 4, 2026

registration-service

34

Registration Service for Signal

Java
Updated Jun 1, 2026

signal-webrtc-ios

33

No description provided for this repository.

Python
Updated Apr 17, 2026

Signal-Design

33

A place to archive design assets used by Signal.

Unknown Language
Updated Feb 26, 2025

maven

30

No description provided for this repository.

Unknown Language
Updated Jan 8, 2026

JSQMessagesViewController

30

An elegant messages UI library for iOS

Objective-C
Updated Feb 3, 2025

libpastelog

26

No description provided for this repository.

Java
Updated Feb 3, 2025

AES-GCM-Provider

22

A BoringSSL-backed AES-GCM provider for Android with support for "incremental" encryption/decryption

Java
Updated Apr 22, 2026

dropwizard-simpleauth

21

Dropwizard library for simple @Auth annotations that support multiple types

Java
Updated Feb 3, 2025

CLAServer

21

GitHub Integration for managing CLA signatures

Java
Updated Feb 3, 2025

storage-manager

20

Manage objects inside a cdn

TypeScript
Updated May 29, 2026

node-sqlcipher

20

A fast N-API-based Node.js addon wrapping sqlcipher and FTS5 segmenting APIs.

TypeScript
Updated May 26, 2026

emoji-search-index

19

Static assets used for to generate a search index for emoji within Signal.

Unknown Language
Updated Apr 28, 2026

mp4san

18

A Rust MP4 format sanitizer

Rust
Updated May 28, 2026

YapDatabase

18

YapDatabase is an extensible database for iOS & Mac.

Objective-C
Updated Feb 3, 2025

Signal-Art-Creator

17

Sticker Pack Creator Web App

TypeScript
Updated Jun 4, 2026

boring

17

BoringSSL bindings for the Rust programming language.

Rust
Updated Mar 29, 2026

libaxolotl-j2me

17

Axolotl J2ME

Java
Updated Oct 10, 2025

libPhoneNumber-iOS

17

iOS port from libphonenumber (Google's phone number handling library)

Objective-C
Updated Apr 4, 2025

key-transparency-server

16

Key transparency server

Go
Updated Apr 30, 2026

sqlcipher

16

No description provided for this repository.

C
Updated Sep 16, 2025

GRKOpenSSLFramework

16

OpenSSL CocoaPod for iOS and OSX

C
Updated Feb 3, 2025

YYImage

14

Image framework for iOS to display/encode/decode animated WebP, APNG, GIF, and more.

Objective-C
Updated Mar 29, 2026

SQLCipherVsSharedData

14

Demo Project to demonstrate a bug in SQLCipher

Objective-C
Updated Feb 3, 2025

ShortcutBadger

14

No description provided for this repository.

Java
Updated Feb 3, 2025

libsignal-metadata-java

13

No description provided for this repository.

Java
Updated Jun 22, 2025

dropwizard-wavefront

13

Dropwizard Metrics Reporter For Wavefront

Java
Updated Feb 3, 2025

l10n_lint

12

l10n_lint is a utility to verify completeness of .strings (iOS & OS X) translations files and the count of their format attributes.

Rust
Updated Mar 24, 2026

BOLT

12

Binary Optimization and Layout Tool - A linux command-line utility used for optimizing performance of binaries

C++
Updated Aug 7, 2025

libmobilecoin-ios-artifacts

12

No description provided for this repository.

Swift
Updated Jun 19, 2025

libsignal-client-node

11

No description provided for this repository.

Unknown Language
Updated Jul 8, 2025

Signal-Carthage

11

No description provided for this repository.

Objective-C
Updated Feb 3, 2025

coturn

10

No description provided for this repository.

C
Updated Apr 28, 2026

HKDFKit

10

Simple HKDF utility with Objective-C interface

Objective-C
Updated Feb 3, 2025

redis-dispatch

10

No description provided for this repository.

Java
Updated Feb 3, 2025

sqlcipher-android

9

A light fork of https://github.com/sqlcipher/sqlcipher-android

C
Updated Jan 21, 2026

noise-java

9

Plain Java implementation of the Noise protocol

Java
Updated Dec 31, 2025

SocketRocket

9

A conforming Objective-C WebSocket client library.

Objective-C
Updated Jan 22, 2025

Mantle

8

Model framework for Cocoa and Cocoa Touch

Objective-C
Updated Mar 29, 2026

Signal-Message-Backup-Tests

7

Signal Message Backup shared client integration test cases

Kotlin
Updated May 18, 2026

key-transparency-auditor

7

Key transparency auditing server

Java
Updated Apr 21, 2026

s3-upload-maven-plugin

7

Maven plugin to upload files to s3

Java
Updated Sep 4, 2025

OpenSSL-Pod

6

OpenSSL's Cocoapod

Ruby
Updated Feb 3, 2025

PastelogKit

6

A simple library that provides an easy fragment allowing users to throw debug logs in a pastebin (currently gist) online.

Objective-C
Updated Feb 3, 2025

HsmEnclave

5

HSM-backed remote-attestable enclave.

C
Updated Jun 4, 2026

noise-c

5

Public fork of https://github.com/rweather/noise-c

C
Updated Feb 4, 2026

simple-grpc

4

A gRPC server code generator and runtime designed for ease of service implementation

Java
Updated Jun 1, 2026

ObjC-CollapsingFutures

4

Futures, for Objective-C, that automatically collapse so it's nearly impossible to mix up the level of future nesting despite the lack of generics.

Objective-C
Updated Feb 3, 2025

minimask

3

No description provided for this repository.

TypeScript
Updated May 19, 2026

tungstenite-rs

3

Lightweight stream-based WebSocket implementation for Rust.

Rust
Updated Mar 19, 2026

AFNetworking

3

A delightful networking framework for iOS, macOS, watchOS, and tvOS.

Unknown Language
Updated Jan 22, 2025

windows-dummy-keystroke

2

Sends a dummy keystroke on Windows.

Unknown Language
Updated Jun 4, 2026

quill

2

Quill is a modern WYSIWYG editor built for compatibility and extensibility

Unknown Language
Updated Apr 17, 2026

Signal-Sqlcipher-Extension

2

A sqlcipher extension for crypto provider.

Rust
Updated Aug 26, 2025

node-windows-ucv

1

A Node.js bindings for Windows User Consent Verification APIs.

C++
Updated Jan 5, 2026

rust-openssl

1

OpenSSL bindings for Rust

Rust
Updated Oct 11, 2025

libmobilecoin-apple-artifacts

1

No description provided for this repository.

C
Updated Mar 18, 2025

parchment

0

Generalized state model for rich-text editors to interface with browser DOM

Unknown Language
Updated Mar 10, 2025

Frequently asked questions

What does signalapp build on GitHub?

Signalapp builds several repositories on GitHub dedicated to secure messaging and cryptographic technologies. Key projects include Signal-Android, Signal-Desktop, and Signal-iOS, which provide private messaging solutions across various platforms.

Which programming languages does signalapp use?

Signalapp utilizes a variety of programming languages for their projects, including Java, C, Rust, Objective-C, TypeScript, and C++. This diverse language use supports their development of secure applications and protocols.

Are signalapp's repositories public?

Yes, all of signalapp's repositories on GitHub are public. This transparency allows developers and users to review their code, contribute to projects, and understand the security measures implemented in their applications.

Is this exposure intended?

Monitor Signal with RepoGuard and get alerted the moment a new public repository appears.

Monitor this account