Linux
x86-64 / AMD64
DownloadFree network scanner
See every device on your network. Free.
Run agentless IT asset discovery from Windows, macOS, or Linux. Find IP and MAC addresses, hostnames, vendors, open ports, device types, and discovery evidence without installing endpoint agents.
Free Local CSV and JSON Windows, macOS, Linux
Free to useNo trial clock or card
AgentlessOne scanner, no endpoint agent
Local-firstReview results in CSV or JSON
Verifiable buildsChecksums and SBOM included
Download
Start your free network scan
Choose the build for the computer that will run the scan. Keep the scanner on a trusted system with network access to the ranges you are authorized to inspect.
Linux
ARM64 / AArch64
DownloadmacOS
Intel processor
DownloadmacOS
Apple silicon
DownloadWindows
x86-64 / AMD64
DownloadView SHA-256 checksums for version 1.0.1
assetloom-scanner-darwin-amd64
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5d25c7a756f91be3c4c1e4f32548cd566e25a3ffeb617513d75eccafee0b6e51assetloom-scanner-linux-amd64
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0861a51b44ba5edc2ee2038c86771f852753c1c82fc6222e3363b0a4269fdcd6assetloom-scanner-windows-amd64.exe
530bc6d946f84805e9fc3cedbf3381556becf9479b584b84490fc78aeacc888dchecksums.txt
0fb06195b27e513479f2e036b381c00c6840959575d6d8fa54d32a8eb5736ee0sbom.spdx.json
4cd3a0bdb7c37b1487c94483c79a39af03e59e7c4a10e37d00fcd26fd4f998beIT asset discovery
Turn network signals into a useful inventory
Discover reachable assets, correlate network evidence, and keep the method status behind each result visible for review.
Network discovery
Find active devices with local ARP, ICMP, TCP, DNS, NetBIOS, and mDNS discovery across approved network ranges.
Device identity
Correlate IP and MAC addresses, hostnames, hostname sources, and OUI vendor data into one record per discovered device.
Ping-resistant discovery
Find devices that ignore ICMP when they still respond to local ARP or selected, bounded TCP probes.
Open-port evidence
Record selected reachable TCP ports as supporting evidence without turning discovery into an unrestricted port scan.
Device classification
Combine vendor, hostname, TTL, and open-port evidence to classify workstations, servers, printers, switches, and other device types.
Portable results
Keep scan output local in structured JSON for automation or CSV for review, reporting, and import into your existing workflows.
Protocol coverage
ICMP
ARP
TCP
DNS
NetBIOS
mDNS
# Generate a documented starter configuration
$ assetloom-scanner --init-config ./config.json
Configuration created: ./config.json
# Validate the target and configuration
$ assetloom-scanner --config ./config.json --dry-run
Validation complete: 192.168.1.0/24 approved
# Discover and inventory devices
$ assetloom-scanner --config ./config.json --output json
Network scan started range=192.168.1.0/24
Scan complete devices=42 output=scan-results.json
Transparent workflow
From download to inventory in four steps
The command-line scanner is designed for repeatable local operation and clear automation.
- 01
Download and verify
Select your platform build and compare its SHA-256 checksum before installation.
- 02
Configure approved ranges
Generate the starter JSON file, then define the network range and protocol settings.
- 03
Validate before scanning
Use dry-run validation to review configuration and target safety without sending probes.
- 04
Scan and export
Run discovery, classify the results, then open the local CSV or JSON inventory.
Built for responsible discovery
Know exactly where and how you scan
Network discovery is powerful. The scanner keeps scope explicit, protocol work bounded, output local, and evidence visible so operators can scan with informed authorization.
Bounded execution
Configurable timeouts, concurrency, rate limits, and cancellation keep protocol work controlled.
Approved targets
Range validation and explicit overrides help prevent accidental scans outside the intended environment.
No remote credentials
Version 1.0.1 does not require stored remote-management credentials or upload scan results to a cloud service.
Auditable evidence
Method statuses, limitations, and confidence make incomplete or inferred results easier to evaluate.
One device record
A clearer view of every discovered asset
Correlated findings reduce duplicate records and preserve the protocol sources behind important fields.
| Category | Example inventory fields | Evidence sources |
|---|---|---|
| Identity | IP address, hostname, hostname source, MAC address, and OUI vendor | ARP DNS NetBIOS mDNS |
| Classification | Device type, optional subtype, matched rule, confidence, and confidence score | Vendor Hostname Ports TTL |
| Network evidence | Open ports, response time, TTL, discovery source, and liveness methods | ICMP ARP TCP |
| Method status | Protocol outcome, reason, limitation, duration, and discovery-limited state | Protocol status Limitations |
| Scan metadata | Scan ID, first seen, last seen, and discovered-by evidence | Scanner |
From discovery to lifecycle management
Found your devices? Put that inventory to work.
The scanner shows what is connected. AssetLoom helps your team manage what happens next by centralizing asset records, ownership, assignments, maintenance, software licenses, and lifecycle activity.
- Keep discovered devices in one operational inventory
- Track assignment, condition, maintenance, and retirement
- Start with a free plan for up to 250 assets, no credit card required
Frequently asked questions
Free network scanner FAQ
Practical answers for IT teams evaluating local network and asset discovery.
What is the AssetLoom Network Scanner?
It is a command-line network scanner for agentless IT asset discovery. It discovers reachable devices, resolves available network identity, classifies the results, and exports a normalized inventory to local CSV or JSON files.
Is the network scanner really free?
Yes. The local scanner download is free to use and does not require a credit card. AssetLoom Cloud is a separate product for teams that want centralized asset operations and lifecycle management.
Do I need to install an agent on every device?
No. The scanner is agentless. Version 1.0.1 uses ICMP, ARP, selected TCP probes, reverse DNS, NetBIOS, and mDNS without installing software on the devices being discovered.
What types of devices can it discover?
It can find workstations, laptops, servers, virtual machines, printers, switches, routers, access points, phones, tablets, storage devices, and other IPv4-connected equipment. Classification depth depends on reachability and the network evidence each device exposes.
Does a local scan upload my data to AssetLoom Cloud?
No. Version 1.0.1 has no cloud integration. Scan results are written only to the local CSV or JSON output path you choose.
Can it inventory installed software and operating systems?
Not in version 1.0.1. The current release focuses on network discovery, identity evidence, open ports, and device classification. Credentialed hardware, operating-system, and software inventory belongs to a later scanner release.
Can it scan routed networks and VLANs?
It can scan configured ranges that are reachable from the scanner host. ARP is limited to the local Layer 2 network, while routed discovery uses supported IP protocols. Only scan networks you own or are explicitly authorized to assess.
Does it require administrator or root privileges?
Some discovery methods and operating systems require elevated privileges for raw packet access. The scanner reports capability limitations and can still use available methods when a privileged method is unavailable.
Your IT inventory starts with what is actually connected
Download the free scanner, discover your network, and turn scattered device evidence into structured asset records.