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LayerByte Releases Netcalc, a C++ IPv4/CIDR Subnet Calculator for Students

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A developer under the handle LayerByte has released Netcalc, an open-source command-line tool designed to help students practice IPv4 and CIDR subnet calculations. The project is part of a broader collection of educational cybersecurity tools focused on defensive security concepts. Written in C++ and licensed under MIT, Netcalc is intentionally scoped to a single concept to keep the code readable and beginner-friendly. The tool includes input validation and error handling, and explicitly excludes any offensive capabilities such as exploitation or brute forcing. The source code is publicly available on GitHub, and the developer is welcoming feedback aimed at keeping the project safe and educationally useful.

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