IP-tools
IPv4 subnet / CIDR calculation, IPv6 expansion, IP conversions and MAC validation.
IP-V4 Subnet CIDR-CalculatorNetwork address, broadcast, wildcard, mask and host range from any CIDR.IP-V6 AddressuitbreiderExpand abbreviated IPv6 to the full 8-group form.IP-V6 AddresscompressorCompress IPv6 to its shortest RFC 5952 form.IP to DecimaalconverterConvert IPv4 addresses to 32-bit integers and back.Decimaal to IP-ConverterTurn a packed integer back into dotted-quad IPv4.MAC AddressvalidatorValidate MAC formats and inspect unicast/multicast and admin bits.Defang IP AddressesTakes a IPv4 or IPv6 address and 'Defangs' it, meaning the IP becomes invalid, removing the risk of accidentally utilising it as an IP address.Format MAC addressesDisplays given MAC addresses in multiple different formats. Expects addresses in a list separated by newlines, spaces or commas. WARNING: There are no validity checks.IP-V6 Transition AddressesConverts IPv4 addresses to their IPv6 Transition addresses. IPv6 Transition addresses can also be converted back into their original IPv4 address. MAC addresses can also be converted into the EUI-64 format, this can them be appended to your