Subnetic

Subnetic is the fast, private subnet calculator for network engineers, admins, and students. Type any IPv4 address or CIDR and instantly get the network, broadcast, subnet mask, wildcard, usable host range, host counts, address class and scope — plus a live binary breakdown that highlights the network and host bits. It updates as you type, and a prefix slider lets you sweep /0 to /32 in a tap. — WHAT MAKES SUBNETIC DIFFERENT — • Instant IPv4 / CIDR calculation as you type, with a live binary breakdown of network and host bits. • Dotted-mask and prefix input, aware of RFC 3021 (/31) and /32 — tap any value to copy. • Subnet Splitter — divide a block into equal subnets, or pack it by host requirement with VLSM (Pro). • Full IPv6 calculator — prefix, range, expand/compress, and address counts (Pro). • Export & Copy All — copy every field at once or share results as text (Pro). • 100% offline — no accounts, no network calls, no tracking. — PRICING — Subnetic is free, with the full IPv4/CIDR calculator, live binary breakdown, and copy-to-clipboard. Subnetic Pro is a one-time purchase — no subscription — that adds the Subnet Splitter, a full IPv6 calculator, and Export & Copy All. — FEEDBACK — Made by a small indie team. Email obeliskclubclub@gmail.com with feedback, bug reports, or feature requests. Built with native Apple frameworks and a calm, modern design. Terms of Use (EULA): https://obelisk.club/subnetcalculator/terms