Charles Proxy - HTTP proxy / HTTP monitor / Reverse Proxy
jEnTunnel - Manage SSH Tunnels made easy
HTTP Toolkit - Beautiful, cross-platform & open-source tools to debug, test & build with HTTP(S). One-click setup for browsers, servers, Android, CLI tools, scripts and more.
MyEnTunnel - Basically, MyEnTunnel is an efficient method for maintaining the tunnels of TCP SSH, MyEnTunnel has many advantages upon its usage. Plink (PuTTY Link)...
Weer - A HTTP protocol debugger with Chrome DevTools frontend interface
SSH Tunnel NG - A user-friendly, fast, and cross-platform SSH tunnel manager