This is a set of calculators that anybody working with IP networks needs.
2018-06 re-write and cleanup IPv4 code
2018-05 add some calculators for IPv6
2018-04 make number converter arbitrary precision
2016-12 add clear button on IP-calc page
2016-03 add navigation bar
2015-10 allow CIDR and IP mask as input format
2008-09 added more converters
2008-05 bug fixes
2008-03 first version
All calculators were written by Guido Socher.
Written by Guido Socher, MIT license