🌐Network / IP

The Network / IP category bundles the everyday tasks of working with IP addresses and subnets into tools you can run right in the browser. Common jobs include calculating the IP range, subnet mask, and host count from CIDR notation, checking whether an address is public or private, converting IPv6 addresses between their compressed and expanded forms, and finding the right MTU/MSS values for VPN, tunnel, or PPPoE setups. These tools are handy for server admins writing firewall rules, network engineers planning an internal network, developers configuring cloud VPCs and security groups, and beginners learning how subnets and ping actually work.

A typical workflow starts by identifying what kind of address you are dealing with. Use the public/private IP checker to classify a range, then the CIDR calculator to see exactly how many hosts a notation like /24 contains, and from there summarize an IP range into the smallest set of CIDR blocks or convert it to IPv6 as needed. Every calculation runs entirely in your browser and nothing is sent to a server, so you can safely paste internal addresses and network design details.