Asciinema : Asciinema is a free and open source solution for recording the terminal sessions and sharing them on the web.
tmate : Tmate is a fork of tmux. It provides an instant pairing / sharing solution for the terminal.
warp : Secure and simple terminal sharing
warp lets you securely share your terminal with one simple command: warp open. When connected to your warp, clients...
Vaultier : Easy and secure password and credentials sharing across teams.
TailTub : Pipe your app and server logs to TailTub. You get back a unique URL. Share the URL with others to view results in real-time.
ASCII.IO is the simplest way to record your terminal and share the recordings with your fellow geeks. Simply record and upload your terminal session with a single command, and ASCII.IO will play it back in your browser.