About NetworkOps Tools

NetworkOps Tools provides free, browser-based tools for network engineers, cloud engineers, and DevOps teams. The site covers common IPv4 planning tasks: subnetting, CIDR aggregation, range conversion, overlap checks, wildcard masks, and VLSM planning.

Calculations run locally in your browser wherever possible. Data you enter into a tool is processed on your device and is not sent to a server for the calculation itself. There are no accounts, and the tools work without sign-up.

The tools are designed for practical workflows — planning a VPC, tightening a firewall rule set, or sizing subnets for an office network — and each page explains the underlying logic so results are transparent rather than opaque.

Results are provided for informational and planning purposes. Please verify results independently before applying changes to production networks; this site does not offer a professional warranty for any outcome.