N3XScan – Local Network Scanner
A native subnet scanner for Windows and macOS. Discover devices, IP and MAC addresses, hostnames, vendors and open services. Change history, Wake-on-LAN and N3XShell/N3XRemote integration — all local.
N3XScan — see your whole network in seconds
A lightweight native app for discovering and inventorying devices on your local network. It combines ping, safe TCP probes, reverse DNS and the ARP table to find devices that block standard echo requests. Results, history and trust labels stay on your computer.
Windows 11 (.exe) and macOS (.dmg) · no account · no telemetry · 100% local data
192.168.1.0/24
Ethernet · 254 IP
gateway.local
192.168.1.1
SSH · HTTPS
n3x-nas.local
192.168.1.18
SMB · WEB
camera-front
192.168.1.42
HTTP · RTSP
What N3XScan can do
Automatic subnet detection
Detects the active interface and suggests a safe scan range. Choose quick, standard, deep or custom-port profiles.
IP, MAC, vendor and hostname
Combines multiple sources to show addresses, hostname, network adapter vendor, latency and the likely device type.
Services and exposure review
Recognises SSH, HTTP, HTTPS, SMB, RDP, VNC, RTSP, printers and databases, and flags services that deserve review.
History and change detection
Stores the last 20 scans locally, highlights new devices and lets you return to an earlier view of the network.
N3X quick actions
Open a web panel or RDP, send Wake-on-LAN, or copy the IP and jump straight into N3XShell or N3XRemote.
Safe operating boundaries
Scans private RFC1918 networks only, caps subnet size and custom ports, and requires neither Nmap nor administrator privileges.
Getting started
- 1Choose the Windows installer (.exe) or macOS disk image (.dmg), install and launch N3XScan. It automatically detects your active network adapter and suggests a subnet.
- 2Choose a scan profile. Standard is the best starting point; deep checks more services, and custom accepts up to 128 ports.
- 3Click “Scan network”. Open a device to use its web panel, RDP, Wake-on-LAN, N3XShell or N3XRemote actions.
Changelog
- NewVendor recognition from the MAC address using the full IEEE registry — 53 thousand assignments instead of 36, offline.
- ImprovementDevices using a randomized MAC address are labelled as such and no longer clutter the list of new devices.
- NewPDF report with the nex-IT logo: a summary, the findings that need attention with the port and the reason, and a table of discovered devices.
- FixThe CSV export opens correctly in Excel — the service list no longer spills into neighbouring columns.
- ImprovementThe CSV export includes a column with the reason a device was flagged.
- FixA failed update check now shows the reason instead of just “update check failed”.
- NewThe risk badge now says why: device details list the port and the reason, and the row shows them in a tooltip.
- ImprovementThe assessment now covers databases and administrative services — MSSQL, MySQL, PostgreSQL, Redis, MongoDB, Elasticsearch, NFS, rsync and SNMP.
- ImprovementResults appear in the list while the scan runs, instead of only when it finishes.
- ImprovementThe online, trusted and open-service counters update as the scan goes.
- NewName the networks you scan: name a place once and every later scan there recognises it on its own.
- NewHistory grouped by site — no more lists of identical “192.168.1.0/24” entries.
- Improvement“New” devices are counted against your last visit to the same network, not the most recent scan overall.
- ImprovementHistory keeps the last 60 scans instead of 20.
- FixAutomatic updates work on macOS.
- FixThe list keeps its scroll position when opening device details.
- FixMinor fixes to opening RDP connections.
- FixFixed the save location for CSV exports.
- ImprovementN3X-branded Windows installer.
- ImprovementDiscovery processes hidden on Windows.
- ReleaseFirst release: network device discovery — computers, servers, cameras, printers and IoT with IP, MAC, vendor and services.