subnet-calculator

CLI Subnet Calculator

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

IPv4 subnet arithmetic with /0, /31, /32 and mask edge cases done properly. One dependency-free JS file, tested against Python's ipaddress.

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.

A Java-based CLI network calculator tool for network engineering tasks, featuring host bit calculations, subnetting increments, and CIDR notation conversion based on host/network requirements.

An IP Subnet Calculator as Progressive Web App

A personal utility toolkit for common networking functions.

IPv4/IPv6 subnet calculator, VLSM planner and IPv4→IPv6 migration tool for network engineers. Vanilla JS, zero dependencies.

Your subnetting hero written in C

Rust IP Calculator, ripcalc. Based on the venerable sipcalc

🌐 A command line utility to get useful information about an IP Address and Subnet Mask combo.

IP module for calculation (demical, subnet) / check bogon.

A Subnet Calculator written in Python, served Django

Free IPv4 subnet calculator, aspect ratio calculator, WCAG color contrast checker - 100% client-side - Live at https://calc.hjlabs.in

IPv4/IPv6 subnet calculators, a VLSM planner, IP format conversion, and CIDR membership checks.

High-performance IPv4 subnet calculator with zero dependencies, built in pure Java using bitwise operations.

Networking toolkit: IPv4 subnet calculator and VLSM planner, live DNS-over-HTTPS lookups, and an animated TCP handshake / retransmission / teardown simulator.

IPV4 CLI Subnet Calculator With VLSM support, made with python, no optional libraries required. python3 supported

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