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ipv4-address

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CidrPlan is a lightweight, browser-based IPv4 subnet planning tool that lets you interactively design and manage network address spaces. Split larger blocks into smaller subnets, merge them back together, name your networks, and export your plans in multiple formats—all without leaving your browser.

  • Updated Jan 29, 2026
  • JavaScript

A google chrome browser extension which can be used to get your public ip address as well as collect details about any ip address. Drive link for the extension: https://drive.google.com/file/d/1f5BS5f8H0f1hHEraefJ4QtcxXB10quGw/view?usp=sharing

  • Updated Jul 5, 2022
  • JavaScript

SubCalc Pro is a responsive React application that provides a complete networking toolkit for IPv4 subnetting, IP address analysis, and network planning. It includes FLSM and VLSM calculators, address and mask converters, visual subnet maps, subnet comparison tools, quizzes, and more.

  • Updated Jun 10, 2026
  • JavaScript

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