Batch-generate random IPv4, IPv6 and MAC addresses — private ranges, vendor OUI, custom separators.
Pick a type and options, click Generate. IPv4 supports private ranges (10.x, 172.16-31.x, 192.168.x) or fully random public addresses. IPv6 outputs 8 groups of 4 hex digits, optionally :: -compressed and/or with a fixed prefix. MAC = 6 hex octets; supply an OUI (first 3 octets) to bias by vendor (00:1B:44 = Cisco, 00:50:56 = VMware, DC:A6:32 = Raspberry Pi…). Everything is generated locally with crypto.getRandomValues.