https://noted.lol/networking-toolbox/
Introducing Networking Toolbox: Self-Hosted Network Tools in One Place
Networking Toolbox is a self-hosted collection of 100+ network utilities that run offline, giving you quick access to IP, DNS, and HTTP tools in one simple web...
networking toolboxself hosted
https://redes.pcdomanual.com/
Networking Toolbox
A free set of online tools to help with IP addressing and subnetting.
networking toolbox