pgp

YubiKey-Guide

+536

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

getsops/sops

+71

Simple and flexible tool for managing secrets

himalaya

+44

CLI to manage emails

WebClients

+17

Monorepo hosting the proton web clients

anonaddy

+8

Anonymous email forwarding

keybase/client

+6

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

minisign

+5

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

neomutt

+3

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

MailKit

+3

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