Proxyman.io - Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.
Gotty - GoTTY is a simple command line tool that turns your CLI tools into web applications.
Reactime - Time travel debugging tool, visualizing and tracing state
tmate - Tmate is a instant terminal sharing based on ssh.
code-ray - Live debugging tool for software developers
Pagekite - Bring your localhost servers on-line.