A high-precision, single-file IPv4 Subnet Calculator built with vanilla HTML, CSS, and JavaScript. Designed with a luxury dark theme featuring gold and yellow accents, tailored for network engineers, system administrators, and CCNA/CCNP students.
- Real-Time Calculation: Instant updates as you type or change subnet masks.
- Comprehensive Network Metrics:
- Network Address & Broadcast Address
- Usable Host Range & Total Usable Hosts
- Subnet Mask & Wildcard Mask
- IP Class (A, B, C, D, E) & Scope (Public, Private, Loopback, Link-Local)
- Binary Breakdown: Displays 32-bit binary representations for both the IP and Subnet Mask.
- Zero Dependencies: Pure HTML/CSS/JS with no heavy frameworks or external JS libraries required.
- Responsive & Lightweight: Optimized for both desktop and mobile screens.
Check out the live tool here:
👉 Live Subnet Calculator