Hey Product Hunt! 👋 I built DevSubnet because I realized most online subnet calculators transmit your corporate network topologies and IP schemas to remote servers. Network planning should be secure, so I created a tool that runs 100% client-side in your browser with a zero-log architecture. Beyond standard IPv4 and IPv6 math, I wanted to solve real headaches for cloud architects and network engineers. DevSubnet automatically adjusts usable IP counts based on vendor-specific reservations (AWS, Azure, GCP), helps size Kubernetes CNI blocks, and even exports Terraform IaC syntax. Whether you're studying for your CCNA or planning a multi-region cloud architecture, I'd love to hear your feedback on how to make this the ultimate subnetting tool!

devsubnet.com

Free, client-side IP subnet calculator for Cloud & DevOps

Free, client-side IP subnet calculator for Cloud & DevOps