SubnectCalc is a tool to help you to make the network IP addressing on macOS.

Downloads

Download SubnetCalc 2.6 (last version) for macOS Sierra (10.12) and later (Intel x86 & Apple Silicon ARM)
Download SubnetCalc 2.5 for macOS Sierra (10.12) and later (Intel x86 & Apple Silicon ARM)
Download SubnetCalc 2.4 for macOS Sierra (10.12) and later (Intel x86 & Apple Silicon ARM)
Download SubnetCalc 2.3 for macOS Sierra (10.12) and later (Intel x86 & Apple Silicon ARM)
Download SubnetCalc 2.2 for macOS Sierra (10.12) and later (Intel x86 & Apple Silicon ARM)
Download SubnetCalc 2.1 for macOS Sierra (10.12) and later (Intel x86 & Apple Silicon ARM)
Download SubnetCalc 2.0 for macOS Sierra (10.12) and later (Intel x86 & Apple Silicon ARM)
Download SubnetCalc 1.6 for macOS Sierra (10.12) and later (Intel x86 & Apple Silicon ARM)
Download SubnetCalc 1.5 for macOS Sierra (10.12) and later (Intel)
Download SubnetCalc 1.1 for MacOS X Leopard (10.5) and later (PPC and Intel)
Download SubnetCalc 1.0 for MacOS X 10.4
Download the source on GitHub.

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Release notes

New in version 2.6:

Fix a crash with macOS Sequoia

New in version 2.5:

IP address history

New in version 2.4:

IPv6 address range bug fix when the IPv6 address is in its short format

New in version 2.3:

FLSM subnet ID bug fix

New in version 2.2:

Change the VLSM Subnet Name by editing the corresponding column
Display Hosts Range and Broadcast columns in the VLSM view
Export Hosts Range and Broadcast VLSM infos to the CSV file

New in version 2.1:

FLSM (Fixed Length Subnet Mask) support
VLSM (Variable Length Subnet Mask) support
Export FSLM result in a CSV file
Export VSLM result in a CSV file

New in version 2.0:

IPv6 support
Address Class D (Multicast) and Class E (Reserved) support
31 and 32 mask bits support
New Tab presentation
Add alerts for bad IP or mask format
Recoded in Swift

New in version 1.6:

Support for Apple Silicon Mac
Dark mode
Selectable fields for copy
New App Icon (Big Sur style)
Bad IP address format alerts
Better App resizing behaviour
Source code compatible with XCode 12

New in version 1.5:

MacOS compatibility fix
CIDR tab redesign
Classless / CIDR support for Subnets/Hosts list
Wildcard mask option
Export all subnets to CSV file
Export subnet infos to Clipboard
New icon
Source code compatible with XCode 9

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 : 192.168.10.30/27)
memory leaks fixed
class D support
best resizing
check if IP address is valid
some other stuff

For any comments, please feel free to contact me: Julien Mulot

Screenshots

Let's see some screenshots:

IPv4 view

App policy

The SubneCalc is under the GPL license.

Copyright 2022 Julien Mulot ([email protected]).

Privacy policy

No personnal data and no data at all are collected by the App (except crash reports submitted by users).

SubnetCalc only performs actions for what it is intended.