Professional Network Tools

Essential tools for network engineers, administrators, and IT professionals. Free, accurate, and professional-grade network utilities.

Built by network engineers for network engineers with enterprise-level accuracy.

Instant calculations and results with no waiting time or page refreshes.

All calculations happen locally in your browser. No data is sent to our servers.

Professional tools for every network engineering task

Calculate subnet masks, network addresses, broadcast addresses, and host ranges with precision.

Plan and design your network subnets with our intelligent wizard for optimal network architecture.

Get comprehensive information about any subnet including detailed analysis and statistics.

Decrypt Cisco Type 7 encrypted passwords and strings for network device management.

Generate optimized Nmap commands for network scanning and security auditing.

Generate DHCP Option 43 hex strings for network device provisioning and management.

Start using our professional network tools today. No registration required, completely free.