Simple and flexible tool for managing secrets

Community guide to using YubiKey for GnuPG and SSH - protect secrets with hardware crypto.

Keybase Go Library, Client, Service, OS X, iOS, Android, Electron

A free & open modern, fast email client with user-friendly encryption and privacy features

A cross-platform .NET library for IMAP, POP3, and SMTP.

CLI to manage emails

Monorepo hosting the proton web clients

Anonymous email forwarding

✉️ Teaching an Old Dog New Tricks -- IRC: #neomutt on irc.libera.chat

🔑🔥📈 Next Level PGP

A dead simple tool to sign files and verify digital signatures.

A .NET MIME creation and parser library with support for S/MIME, PGP, DKIM, TNEF and Unix mbox spools.

Pass for iOS - an iOS client compatible with Pass command line application.

DEPRECATED A helm plugin that help manage secrets with Git workflow and store them anywhere

OpenPGP implemented in pure Rust, permissively licensed

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

opmsg message encryption

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.

Encrypted personal archives

OSINT Swiss Army Knife

🔑🔒 A modern and friendly CLI alternative to GnuPG: generate and download keys, encrypt, decrypt, and sign text and files, and more.

Replace your `curl | sh` installers

Socket.io powered chat, JavaScript REPL, whiteboard, and WebRTC calls

:lock: GPG Sync is designed to let users always have up-to-date public keys for other members of their organization

Eppie — open protocol encrypted p2p email

📩🛡 Email privacy. Anonymously send and receive with alias forwarding. (Abandoned)

DEPRECATED Krypton turns your iOS device into a WebAuthn/U2F Authenticator: strong, unphishable 2FA.

Delta.Chat C-Library with e2e chat-over-email functionality & Python bindings

.NET Core class library for using PGP

RNP: high performance C++ OpenPGP library used by Mozilla Thunderbird