Net Commander supercharges Visual Studio Code for Network Engineers, DevOps Engineers and Solution Architects streamlining everyday workflows and accelerating data-driven root-cause analysis.

cidr-tools but up to 20x faster

Fragmented Classless Inter-Domain Routing (FCIDR)

go implementation of ipcalc

This CIDR Calculator script efficiently computes IP address ranges from CIDR notations, featuring a user-friendly interface and multilingual help options for enhanced accessibility.

A modern, object-oriented TypeScript library for representing and performing arithmetic on IP addresses and subnets.

CIDR (Classless Inter-Domain Routing) calculators are simple tools to assist you to calculate a block of IP addresses.

Code for CIDR Conflict Calculator for IBM Cloud Classic Infrastructure

Subnetter provides a basic deconstruction of CIDR Notation for you subnet needs.

Web utility tools privacy focused

An Intuitive and easy to use Subnet Calculator written in C#.

Educational Java CLI tool for number-system conversion and IPv4 CIDR usable-host calculation.

Subnet/CIDR calculator for your terminal — calculate network addresses, split subnets, check IP containment

🌐 Fast Go CLI tool for CIDR network calculations and subnet analysis. Parse networks, calculate subnets, generate text/HTML reports.

System and Developer Utilities

massive ipaddresses‘ geo infomation lookup through geoip within spark

🛠 Offline Azure cloud adoption planning tool: Naming Convention Generator, IP/CIDR Planner, Tagging Strategy, Landing Zone Planner, WAF Checklist, Cost Estimator & Policy Catalog. Single HTML file, zero dependencies, CAF & WAF aligned.

A CIDR calculator web app.

Guide Claude Code and Codex CLI through a four-phase workflow for requirements, design, planning, and execution to build software with clear control