Subnet Calculator

✨ AI-Powered

📦 v1.0

💾 4.56KiB

📅 2026-01-31

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Overview

📘 IP Subnet Calculator – Chrome Extension

IP Subnet Calculator is a fast and easy-to-use Chrome extension designed for students, network engineers, IT professionals, and anyone learning computer networking.

It instantly calculates:

• Subnet mask
• Network address
• Broadcast address
• First & last usable IP
• Total and usable hosts
• Wildcard mask

With built-in input validation and smart warnings, it helps avoid common subnetting mistakes and explains special cases like /31 and /32 networks.

🚀 Key Features

✅ Accurate subnet calculations in one click
✅ Advanced IP & CIDR validation
✅ Reserved network warnings (loopback, multicast, etc.)
✅ Clean and lightweight popup interface
✅ Works fully offline
✅ No ads, no tracking

Perfect for quick subnet checks while studying, configuring routers, firewalls, or cloud networks.

🤖 Built With ChatGPT

This extension was created using ChatGPT — all core code and logic were generated with the help of ChatGPT to demonstrate the power of AI-assisted development.

🔐 Privacy

This extension does not collect, store, or transmit any user data.
All calculations happen locally in your browser.