KillerScan

~/killerscan

$ killerscan --scan 192.168.1.0/24

found 47 hosts in 3.2s
probed 12 open ports across 6 services
identified 38 vendors via MAC OUI
classified printers, switches, APs, endpoints

No installer. No agent. No account. No telemetry.
Free. Open. GPLv3. Built by a field tech, for field techs.

$

Download for Windows (.zip)

Windows 10/11 x64 · ~508 KB · Requires .NET 8 Desktop Runtime

$ KillerScan v1.1.3

What it does

ARP + Ping Discovery

Dual-method host detection catches devices that don't respond to ICMP, including IoT devices and firewalled endpoints.

Port Probing

Parallel scan of common service ports (SSH, RDP, SMB, HTTP, printing, hypervisor, NAS) with 200ms timeout per port.

Vendor Identification

MAC OUI lookup against the IEEE database identifies device manufacturers -- printers, switches, APs, IoT, and more.

Device Classification

Automatic typing via hostname keywords, OUI vendor, and port fingerprinting. Right-click to manually override any device type.

Export

Export scan results as CSV or HTML report. Right-click any device to copy IP, MAC, hostname, or launch RDP/SSH/browser.

Single File, No Install

One exe, ~508 KB zipped. No installer, no admin rights needed, no dependencies beyond the .NET runtime. Drop it on a USB and go.

Requirements

OS: Windows 10 or 11 (x64)

Runtime: .NET 8 Desktop Runtime

Network: Run as admin for best ARP results on some networks