ngrok vs ZMap
A side-by-side look at ngrok and ZMap. For an in-depth review of either product, follow the links below.
ngrok
Development
ngrok is a cross-platform application that enables developers to expose a local development server to the Internet for testing and sharing their work. It creates secure tunnels from a public URL to a locally running web service.
tunnelingnetworkingdevelopmenttesting
ZMap
Network & Admin
ZMap is an open-source network scanner that is designed to perform fast Internet-wide network scans. It can scan the entire public IPv4 address space in under 45 minutes from a single computer.
networkscanneripv4fastopensource