What is LAN-Orangutan?

LAN Orangutan is a lightweight network discovery tool for homelabbers. It scans local networks using nmap to find every device, then lets you organize devices with custom labels and groups that persist across scans. It supports multiple networks simultaneously, integrates with Tailscale to show tailnet peers, and provides both a web dashboard with theme options and a full CLI with JSON output. The app runs as a single Go binary with no dependencies on Linux, macOS, and Windows, or via Docker on Linux with host networking. It stores data locally in files, requires nmap for MAC address and vendor lookup, and uses a simple password-protected web interface. No cloud, no telemetry, no account system.

Should you self-host LAN-Orangutan?

LAN-Orangutan scores 58/100 on selfhost.directory (how scoring works) and ranks #15 of 48 in Network Monitoring. It has 1 137 GitHub stars.

It shipped 7 stable releases in the past year. The latest, v3.4.2, came out on 18 October 2026. New versions land roughly every 2 weeks.

Setup is easy: most people get it running in one sitting. An official Docker image is available. It is MIT-licensed and written mostly in Go.

Its closest alternative on selfhost.directory is mitmproxy (86/100, 46 441 stars). It scores higher overall, so compare the two before you pick. See LAN-Orangutan vs mitmproxy side by side.