IP Calculator

A lightweight, offline-ready tool for network engineers and students. Instantly calculate network details for both IPv4 and IPv6 addresses. Key Features: IPv4 Support: Calculate CIDR, subnet masks, wildcard masks, usable host ranges, and broadcast addresses. IPv6 Support: Full support for 128-bit address space, including prefix lengths and compressed/expanded formats. Real-time Results: No "Calculate" button needed—results update as you type. Privacy Focused: Works entirely offline. No data collection, no tracking. Simplify your subnetting workflow with a clean, ad-free interface.