Subnet Calc is a fast, clean, and modern IPv4/IPv6 calculator built for network engineers, DevOps, and cloud architects. We built it for ourselves to fix a common headache: easily splitting subnets and mapping them directly to active systems and projects. Unlike basic calculators, Subnet Calc lets you promote subnet nodes into versioned, team-friendly projects. Clean, simple, and ad-free.
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About this launch
Subnet Calc by Ross Mason Will be launched August 3rd 2027.