IP / CIDR Subnet Calculator

The IP / CIDR Subnet Calculator is an essential utility for modern developers. Break down a CIDR block into network address, broadcast, usable range and host count.

How to use the IP / CIDR Subnet Calculator

• Input your source data into the text area.
• The application will automatically parse and process your input.
• Copy the generated output to your clipboard for immediate use.

Security and Privacy

Unlike cloud-based alternatives, this tool operates strictly on the client-side. This means your sensitive inputs are never transmitted over the internet, guaranteeing zero data leakage.