NetBuddy IP Subnet Calculator

Master subnetting with IPv4/IPv6 calculators, quiz games, VLAN manager, MAC lookup & port reference. Sync your data across devices with Solid Pod.

Whether you're a network engineer, IT professional, student, or networking enthusiast, NetBuddy is your essential companion for subnet calculations, network planning, and learning. This powerful yet intuitive app combines professional-grade tools with educational features to help you master networking concepts.

IPv4 & IPv6 SUBNET CALCULATORS

• Calculate network details instantly with support for both IPv4 and IPv6 • View Network ID, Broadcast Address, and usable host ranges • Display subnet masks, wildcard masks, and CIDR notation • Toggle between decimal and binary formats • Detect your device's current IP configuration • Smart CIDR range suggestions based on IP address classes • Save frequently used subnet configurations with custom labels

INTERACTIVE QUIZ GAMES

Test and improve your networking knowledge with engaging quiz games: • IPv4 Quiz: Master subnetting calculations, host counts, and network addresses • IPv6 Quiz: Practice address types, compression, expansion, and prefix lengths • 10 random questions per game with immediate feedback • Track your scores and identify areas for improvement • Perfect for certification prep (CCNA, Network+, etc.)

VLAN MANAGEMENT

• Create and manage VLANs (1-4094) • Organize VLANs with custom names and descriptions • View reserved VLAN information • Save VLAN configurations for quick reference • Export and import VLAN data

MAC ADDRESS LOOKUP

• Identify device manufacturers from MAC addresses • Support for multiple MAC address formats (colon, dash, dot notation) • Automatically detect your device's MAC address • Fast OUI database lookup

PORT REFERENCE GUIDE

• Quick reference for common network ports • Search by port number or service name • View protocol information (TCP/UDP) • Learn what each port is used for • Covers well-known, registered, and dynamic port ranges

CLOUD SYNC WITH SOLID POD

• Sync your saved subnets across all your devices • Privacy-focused: you own your data in your personal Solid Pod • Automatic conflict resolution when editing on multiple devices • Works with Inrupt PodSpaces and other Solid providers • Optional - use the app fully offline if preferred

COMPREHENSIVE HELP SECTION

• Step-by-step guides for every feature • Networking concepts explained clearly • Tips and best practices • Troubleshooting assistance • Perfect for learning and reference

DESIGNED FOR PROFESSIONALS & STUDENTS

NetBuddy is perfect for: • Network Engineers planning and documenting networks • IT Professionals troubleshooting connectivity issues • Students studying for networking certifications • Educators teaching networking concepts • Anyone learning about IP addressing and subnetting

KEY HIGHLIGHTS

-Clean, intuitive interface with dark mode support -No ads or subscriptions - pay once, use forever -Works completely offline (except cloud sync) -Regular updates with new features -Built with privacy in mind -Supports both iPhone and iPad

WHAT'S NEW IN VERSION 1.3

• Added interactive IPv6 quiz game • New comprehensive Help section • Enhanced dark mode support throughout the app • Improved Solid Pod conflict resolution • Bug fixes and performance improvements

Transform the way you work with networks. Download NetBuddy today and take your networking skills to the next level!