Network Tools

Free online network tools — IPv4 subnet and range calculators, MAC address lookup and generation, and IPv6 ULA generation.

Network Tools

• IPv4 subnet calculator — Calculate IPv4 subnet information from CIDR notation. Enter an IP address and pr
• IPv4 address converter — Convert an IPv4 address into decimal, binary, hexadecimal, or IPv6-mapped repres
• IPv4 range expander — Given a start and an end IPv4 address, this tool calculates a valid IPv4 subnet
• MAC Address Vendor Lookup — Look up the manufacturer and vendor of any network device by its MAC address. Su
• MAC address generator — Enter the quantity and prefix. MAC addresses will be generated in your chosen ca
• IPv6 ULA generator — Generate IPv6 Unique Local Addresses (ULA) per RFC 4193 for private networks. No

Network Tools Guides

• IPv4 Subnetting Explained: CIDR, Subnet Masks, and Network Ranges
• CIDR and Subnet Masks Explained: What /24 Actually Means
• What Is CIDR Notation? Subnets, IP Ranges, and Network Masks Explained
• IPv4 Address Converter: Decimal, Binary, Hex, and Integer
• IPv4 Range Expander: List All IPs in a CIDR Range
• MAC Address Lookup: Find the Manufacturer from Any MAC Address
• MAC Address Explained: Format, OUI, and How to Generate One
• IPv6 ULA Generator: Create Unique Local Addresses for Private Networks