devsubnet.com

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

1 follower

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

1 follower

DevSubnet is the free online IP subnet calculator and CIDR calculator online. Calculate IPv4 & IPv6 network ranges, subnet masks, broadcast addresses, usable hosts, cloud VPC reservations for AWS/Azure/GCP, and Terraform cidrsubnet planning instantly.

Free

Launch tags:Privacy•Developer Tools•Computers

Launch Team / Built With

AWS Startup AdvisorPersonalized AWS guidance that meets you where you’re already building

Promoted

Maker

📌

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!

Report

2mo ago

Pros

Cons

Reviews