IPv4 Subnet Calculator
Free, browser-based IPv4 subnet calculator. 100% Client-Side and Privacy-First.
Capabilities
A bitwise utility for determining network ranges, broadcast addresses, and usable host counts with instant CIDR visualisation.
Target Use Cases
- Planning network infrastructure and VLANs
- Determining usable host ranges for subnets
- Visualising CIDR block allocations
- Troubleshooting routing and mask issues
Your IPv4 Address
Your IP Information
Parsed in 0ms
IPv4 Subnet Calculator
24
Calculated IPv4 Subnet
Parsed in 0ms
100% Client-Side • Privacy-First — nothing leaves your browser.