End-To-End is a crypto library to encrypt, decrypt, digital sign, and verify signed messages (implementing OpenPGP)

• UpdatedApr 9, 2023
• JavaScript

[Unmaintained] Open source two-factor authentication for Android

• UpdatedJun 14, 2022
• Java

Android application compatible with ZX2C4's Pass command line application

• UpdatedOct 15, 2024
• Kotlin

Bouncy Castle Java Distribution (Mirror)

• UpdatedDec 17, 2025
• Java

OpenKeychain is an OpenPGP implementation for Android.

• UpdatedMay 16, 2024
• Java

BouncyCastle.NET Cryptography Library (Mirror)

• UpdatedDec 17, 2025
• C#

Manage your GnuPG keys with ease! 🔐

• UpdatedDec 3, 2025
• Rust

Python library and command line tool for configuring any YubiKey over all USB interfaces.

• UpdatedDec 12, 2025
• Python

OpenPGP implemented in pure Rust, permissively licensed

• UpdatedDec 9, 2025
• Rust

Generate links that users can use to submit messages encrypted with your public key.

• UpdatedDec 9, 2024
• Python

The GNU Privacy Guard. NOTE: Maintainers are not tracking this mirror. Do not make pull requests here, nor comment any commits, submit them usual way to bug tracker (https://www.gnupg.org/documentation/bts.html) or to the mailing list (https://www.gnupg.org/documentation/mailing-lists.html).

• UpdatedDec 10, 2025
• C

Chatmail Rust Core library, used by Android/iOS/desktop chatmail apps, bindings and bots 📧

• UpdatedDec 18, 2025
• Rust

ObjectivePGP is an open-source library for iOS and macOS that provides developers with tools for implementing OpenPGP encryption and decryption, digital signing, and signature verification in their applications, thereby enhancing security and data integrity.

• UpdatedMay 20, 2024
• Objective-C

A modern "Enigma" built on GnuPG brings easy and trustworthy to your privacy life.

• UpdatedDec 12, 2025
• C++

OpenPGP (RFC4880) Implementation in IcedCoffeeScript

• UpdatedSep 25, 2025
• JavaScript

A tool to detect when your YubiKey is waiting for a touch (to send notification or display a visual indicator on the screen)

• UpdatedOct 6, 2025
• Go

Minimalist secure text editor and binary encryptor that implements RFC 4880 Open PGP format: symmetrically encrypted, compressed and integrity protected. The editor can protect files with passwords, key files or both.

• UpdatedJun 23, 2025
• C++

Core implementations of an open-source secure key

• UpdatedMay 5, 2025
• C

A secure and easy-to-use CLI password manager for macOS and Linux

• UpdatedMar 20, 2019
• Go

GitHub Action to import a GPG key

• UpdatedDec 10, 2025
• TypeScript