SubnectCalc is a tool to help you to make the network IP addressing on MacOS X.
The SubneCalc license is the GPL and the current version is 1.1

Download SubnetCalc for MacOS X Leopard (10.5) and later (PPC and Intel)

Download SubnetCalc for MacOS X 10.4
Download source

New in version 1.1 :
  • Universal binary support
  • 64 bits
  • Source code compatible with XCode 3

New in version 1.0 :
  • add CIDR support
  • possibitlity to enter the subnet mask directly in the IP Address field (ex :
  • memory leaks fixed
  • class D support
  • best resizing
  • check if IP address is valid
  • some other stuff

For comments, use my email : Julien Mulot

Let's see screenshots :

address view

subnet view

hosts view