Tools

Fast, practical utilities for everyday system administration and networking tasks.

Networking

IPv4 Subnet Calculator

Calculate network addresses, subnet masks and host ranges from CIDR notation. Copy individual values, export results as text or JSON, and generate a Cisco interface command.

Runs locally in your browser.Open calculator Networking

My IP Address

Check your public IP address, approximate location and network details. Copy your IP or export the result as text or JSON.

Detected by our server. Location provided by Cloudflare.Check my IP