Open Source Mac IT Subnet Calculators

teemIP is an open source, web-based IP Address Management (IPAM) and DDI solution built on the iTop framework. It provides comprehensive IP management: IPv4/IPv6 plan management, subnet hierarchy, IP lifecycle, VLAN and DNS/DHCP integration. teemIP is now maintained by the teemIP SAS founding team: Christophe Naud (original creator), Martin de Laval and Quentin Ville. The company is being officially incorporated in July 2026. The project remains open source under AGPL v3. Professional support, integration services and subscriptions: https://www.teemip.com

This tool is designed to simplify the following networking calculations: Simple conversions between binary, hexadecimal, and decimal numbering systems. Determination of netwrok numbers based on an IP address and subnet mask. (Long-term) The process of subnetting a network into multiple networks based on the number of clients needed in each subnet.

A simple IPv4 Address Calculator. It's a free Python module. It's also a core part of the IPeek-GUI wrapper.

This is a GUI wrapper for IPeek module (Python IPv4 Address Calculator). This little application can help with day-to-day IP address calculations.

IPv6SubnetCalc is a comprehensive calculator for IPv6 addresses. It comes with Java Swing GUI and supports the following RFCs: RFC4291, RFC4193, RFC3849, RFC2464, RFC5375, RFC4941, RFC3513, RFC3879, RFC4941, RFC3056, RFC3587, RFC2374, RFC3306, RFC3956.

The Internet Protocol Address Calculator is an open-source java-based tool. This calculator will assist network administrators to perform calculations over both IPv4 and IPv6 address space. A handy whois search client is also integrated into this tool.

The Internet Protocol Address Calculator is an open-source java-based tool. This calculator will assist network administrators to perform calculations over both IPv4 and IPv6 address space. A handy whois search client is also integrated into this tool.

MacNetCalc is an IP network/subnet calculator written in Python using the PyObjC bridge and the Cocoa UI. Visually similar to Boson's 'Subnetit'.

This is a light weight mobile subnet calculator can calculate VLSM, Non VLSM and address checking for IPv4

NetCalcTools 1.5 uses Qt 5 libraries NetCalcTools 1.4 uses Qt 4 libraries IPv4 tools: SUBNET CALC - Calculate subnet,broadcast,host range and so on. ADDRESS CONVERTER - Input IP'll be converted to bin,hex,oct. MULTICAST ETHERNET - Calculation Multicast MAC addresses from Multicast IP addresses ... SUMMARIZATION - Summarization of IP addresses , You'll fill up IP list and program will summarize it. NETWORK DESIGNER - Calculation of subnets for whole network from 1 or multiple input IP addresses. Other tools: MAC INFORMATION - Will show information about MAC such as if it's global/local individual/group IPv6 tools: SUBNET CALC - Basic calc for IPv6 , Subnet,Host range,Max hosts ... MULTICAST CALC - Will show information about Multicast IPv6 address for example R,T,P bits . OPERATIONS - If you need Commpress,expand IPv6

Crossplatform utility that calculates network address, broadcast address, etc... by given IP and mask.

PHP Subnet Calculator is a simple that. A simple subnet calculator written in PHP with a clean presentation.

Given a valid IP address and subnet mask, this program will return the necessary subnetwork data.

A command which, for a given IP address and subnet mask, gives information about Network ID, broadcast address, first IP address, last IP address and network size. Examples using command: (ncalc 192.168.0.150 255.255.255.0) or (ncalc 192.168.0.150/24

This is a PHP driven web application which accepts user input of an IP address and a subnet mask, and then returns the network address, broadcast address and range of usable IP addresses based on the input.

IP calculator for BlackBerry phones.