Show HN: Atlas – Open-source network discovery and visualization tool

Hi HN,

I built Atlas , an open-source tool for network discovery, visualization, and monitoring. It scans Docker and physical hosts, maps them into an interactive network graph, and shows live status (online/offline).

I created Atlas because I often struggled to keep track of hosts across my homelab and Docker Swarm setups. Existing tools were either too heavy, too closed, or didn’t show the topology in a clear way. Atlas aims to be:

Lightweight (single container, minimal setup)

Self-hosted (no cloud dependencies)

Visual (interactive graph of hosts, subnets, and containers)

Extensible (Go backend, FastAPI API, React frontend)

GitHub repo: github.com/karam-ajaj/atlas

Live demo: atlasdemo.vnerd.nl

I’d love feedback from the community:

What use cases do you see for this?

Which features are most important to you (alerts, integrations, OS detection, etc.)?

Any advice on scaling this beyond homelabs?

Thanks for checking it out!