The ultimate tool for all your subnetting needs.
Calculate network information for an IP address and subnet mask.
Perform Variable Length Subnet Masking for efficient subnet allocation.
Combine multiple subnets into a larger network.
Convert Binary, Hexadecimal, and Decimal numbers.
Create graphical representations of your subnetted networks.
Calculate network information based on IPv6 addresses and subnet masks.
Add and subtract binary.
Generate Cisco and Juniper ACLs.
Generate Cisco and Juniper routing configurations.
Identify the manufacturer of a network device by MAC address.
Check connectivity and trace the path to a remote host.
View your public IP, ISP, and check for WebRTC leaks.