A simple ACME client for Windows (for use with Let's Encrypt et al.)
Cloudflare Tunnel client (formerly Argo Tunnel)
Keybase Go library, client, service, OS X, iOS, Android, Electron
Get free HTTPS certificates forever from Let's Encrypt
Shows how easy it would be to gain unauthorized access to a system
A package manager for JavaScript
Command-line client for WebSockets, like netcat (or curl)
API Support for your favorite torrent trackers
Brook is a cross-platform strong encryption and not detectable proxy
Command line tool and library for transferring data with URLs
Testing TLS/SSL encryption anywhere on any port
Command-line tool to customize Spotify client
aria2 is a lightweight multi-protocol & multi-source download utility
Defeating Windows user account control
A free and open source interactive HTTPS proxy
A black hole for Internet advertisements
Catches mail and serves it through a dream
A client library to multiplex connections from and to iOS devices
signal-cli provides a commandline, dbus and JSON-RPC interface
Collaborative cheatsheets for console commands
Instant messaging server for the Extensible Messaging
Open-source Dropbox client for macOS and Linux
Simple edge server / reverse proxy
A library for working with Bitcoin
UI Grid, an Angular data grid