SubnetCalc: IPv4 & IPv6

IPv4/IPv6 Calc: VLSM, Smart IP Detection (LAN/WAN), Cisco CLI & Practice XP

⚡ Master Your Network Infrastructure with SubnetCalc!

🌐 SubnetCalc: IPv4 & IPv6 is the ultimate high-performance technical tool designed for Network Engineers, Systems Administrators, and students preparing for CCNA, CCNP, or CompTIA Network+ certifications.

💻 Stop struggling with manual math and start visualizing your network architecture in real-time. Whether you are designing complex enterprise segments or learning the fundamentals of binary logic, SubnetCalc provides a sleek, professional, and mobile-first experience.

Key Features:

🔹 Smart IP Detection (Private vs. Public) 🏠🌐
The first calculator that gives you control. Choose between detecting your Internal Private IP (LAN) using native hardware integration or your External Public IP (WAN). Essential for troubleshooting VPNs, NAT, and local routing issues.

🔹 Optimized Professional Workflow 🛠️
Our reordered interface puts the Toolbox at your fingertips. Calculate subnets and immediately jump to VLSM division or Cisco CLI generation without losing context.

🔹 Interactive Binary Visualizer 🔢
Touch and toggle individual bits to see how IP addresses and masks change instantly. The best way to understand the transition between the Network and Host portions of an address!

🔹 Advanced VLSM & FLSM Engine ⚙️
Calculate Variable Length Subnet Masking (VLSM) based on specific host requirements or generate Fixed Length (FLSM) segments. Export your subnet tables directly to CSV files.

🔹 Gamified Practice Mode 🎓
Sharpen your subnetting speed with our interactive quiz! Solve broadcast addresses, network ranges, and masks to earn XP. Perfect for exam preparation!

🔹 IPv6 Mastery ☁️
Full support for IPv6 expansion, compression, and EUI-64 generation. Quickly identify address types (Link-Local, Multicast, etc.).

🔹 Cisco CLI Config Generator ⌨️
Automatically generate ready-to-paste Cisco iOS configuration commands for interface addressing and static routes.

🔹 Professional Toolbox 🧰
Supernetting: Calculate summary routes for multiple networks.
Wildcard Converter: Instantly switch between Wildcard masks and CIDR prefixes.
Cheat Sheet: A quick-reference CIDR table for hosts, masks, and efficiency.

🔹 Modern & Secure Design 🛡️
Privacy First: All processing happens locally on your device.
Haptic Feedback: Professional feel with every touch.
Dark Mode: A beautiful interface easy on the eyes during late-night troubleshooting.
Designed by network pros for network pros. Whether you are in the data center or the classroom, SubnetCalc is the only networking tool you will ever need. 🚀📡