lanscape 3.5.0rc2

A python based local network scanner

LANscape

A local network scanner with a built-in web UI. Discover devices, open ports, and running services on your network.

The UI was recently converted into react, stored in a separate repo: mdennis281/lanscape-ui

pip install lanscape
python -m lanscape

Stats:

Latest release:

Docker:

Health:

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More screenshots

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Flags

Flag	Description
--version	Show the installed version and exit
--ui-port <number>	Port for the web UI (default: auto)
--ws-port <number>	Port for the WebSocket server (default: 8766)
--ws-server	Start WebSocket server only (no UI)
--persistent	Don't auto-shutdown when the browser tab closes
--mdns-off	Disable mDNS service discovery
--logfile <path>	Write log output to a file
--loglevel <level>	Set log level: DEBUG, INFO, WARNING, ERROR, CRITICAL (default: INFO)
--debug	Shorthand for --loglevel DEBUG

python -m lanscape
python -m lanscape --version
python -m lanscape --ui-port 8080
python -m lanscape --debug --persistent
python -m lanscape --logfile /tmp/lanscape.log --loglevel WARNING
python -m lanscape --ws-server --ws-port 9000

Docker (Linux Only)

Not recommended for most users. Network scanning requires direct LAN access (ARP, ICMP, broadcasts), which conflicts with Docker's network isolation. The Docker image requires --network host mode, which only works on Linux — on Windows and macOS, Docker Desktop runs inside a VM so --network host exposes the VM's network, not your physical LAN.

For most users, pip install lanscape is the better option.

If you're running on a Linux host and still want to use Docker, see the full setup guide: Docker Setup Instructions

Troubleshooting

MAC Address / Manufacturer is inaccurate or unknown

LANscape does an ARP lookup to determine MAC addresses. This can require elevated permissions to get accurate results — try running your shell as admin.

Scan accuracy seems low

The scanner uses a combination of ARP, ICMP, and port probing to find devices. If results aren't great out of the box:

• Tweak the scan configuration preset (accessible from the gear icon)
• Set up ARP lookup properly — see ARP issues
• Open an issue if something still seems off

Something else

Feel free to submit an issue with details about what you're seeing.