Subnet Ninja

Free IPv4. Pro: AWS/Azure/GCP + CIDR split + overlap.

3 followers

Free IPv4. Pro: AWS/Azure/GCP + CIDR split + overlap.

3 followers

Subnet Ninja is a terminal-style subnet calculator for Windows. Free: fast on‑prem IPv4 subnet math. Pro: AWS/Azure/GCP reserved‑IP aware modes, a CIDR split tree, and CIDR overlap checks.

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Launch tags:Productivity•Software Engineering•Developer Tools

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Anima - OnBrand Vibe Coding — Design-aware AI for modern product teams.

Design-aware AI for modern product teams.

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Maker

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Hi Product Hunt! I’m Shota, an infrastructure engineer from Japan. Subnet Ninja is my first Windows app. I built it to stop bouncing between Excel and multiple subnet calculators while planning CIDR blocks. Free: fast on‑prem IPv4 subnet math. Pro: AWS/Azure/GCP reserved‑IP aware modes, a CIDR split tree, and CIDR overlap checks. I’d love your feedback: what should I build next—IPv6 support or better export (CSV/JSON)? If you pick “export”, what format do you use most?

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29d ago

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