In this article
- What Is Computer Inventory Software?
- The Computer Inventory Checklist: What to Record for Each Device
- Agent, Device Management or Network Sweep: How Each Finds Computers
- Computer Inventory Software Compared
- How to Run a Computer Inventory Audit
- How Computer Inventory Works in Asset Infinity
- What It Costs in Asset Infinity
- Frequently Asked Questions
Computer inventory software finds every desktop, laptop and server your organization owns, records its hardware, installed software and last check-in, and keeps that record current without anyone retyping it. The best tools also tie each computer to a person and an asset record, so a missing laptop has a name next to it.
A spreadsheet of computers is out of date the week after it is finished. Laptops go home, get reimaged, change hands and stop checking in. This guide covers what computer inventory software should record (with a free audit checklist), how the tools find computers, seven tools compared, and how to run a computer inventory audit from start to finish.
What Is Computer Inventory Software?
Computer inventory software is a tool that collects hardware and software details from an organization’s computers automatically, through an agent on each machine, a device-management system or a network scan. It keeps one current record per computer and flags machines that are new, missing, duplicated or unmanaged.
IT teams buy it for four reasons. Security: the CIS Critical Security Controls start with an inventory of enterprise assets, because a machine nobody knows about is a machine nobody patches. Licensing: a vendor audit asks how many installs you have, and “about 400” is not an answer. Budget: refresh plans need ages and warranty dates. And people: when someone leaves, IT has to know which laptop, monitor and dock to collect.
The Computer Inventory Checklist: What to Record for Each Device
This is the record every computer should have. Use it as an audit checklist, a spreadsheet template, or a test of any tool you evaluate. The last column says where the value usually comes from.
| Field | Why it matters | Where it comes from |
|---|---|---|
| Asset number and label | One ID for tickets, counts and hand-overs | Assigned by you; printed on a tag |
| Serial number and hardware UUID | Identifies the machine even after a rename or reimage | Agent or device management |
| Host name and MAC addresses | How the network and the service desk know it | Agent, device management or network sweep |
| Make, model, CPU, memory and disk | Refresh planning and support | Agent or device management |
| Operating system and version | Patching and end-of-support planning | Agent, device management or credentialed scan |
| Installed software, with versions | License counts and blocked software | Agent or device management |
| Custodian and department | Who answers for it, and who returns it | Last signed-in user as a suggestion; confirmed by a person |
| Site and location | Where to find it in a count | Network, enrollment or a person |
| Purchase date, cost and vendor | Budget, depreciation and audit | Purchase order or invoice |
| Warranty end date | Whether a repair is covered, and when to refresh | Manufacturer lookup or invoice |
| Last seen and by which source | Whether it is still in use or has gone missing | Every check-in |
| Status | In use, in stock, under repair, retired or disposed | Your workflow |
Two fields catch most teams out. Last seen is what turns an inventory into an audit: a laptop that has not checked in for 60 days is either lost, broken or sitting in a drawer, and each needs a different action. Custodian is what makes the inventory useful outside IT, because the person answerable for a device is the one HR and finance will ask about.
Agent, Device Management or Network Sweep: How Each Finds Computers
These tools collect data in three ways, and most organizations use at least two. Our guide to IT asset discovery covers the methods in depth; this is how they compare for computers specifically.
| Agent on the machine | Device management (MDM) connector | Network sweep | |
|---|---|---|---|
| Finds laptops off the office network | Yes, it reports from anywhere | Yes, for enrolled devices | No, only what answers on the scanned ranges |
| Installed software | Yes | Yes | No (a sweep sees the device, not its applications) |
| Needs credentials | No | An API connection | For anything beyond “this address answers” |
| Finds devices nobody enrolled | No | No | Yes, which is its main job |
| Effort | Install once per machine or push it with your deployment tool | Connect once | Authorize ranges and run a collector on site |
The practical answer: agents or MDM for the computers you know about, and a scheduled network sweep to find the ones you do not.
Computer Inventory Software Compared
Seven tools come up most often when IT teams draw up a shortlist. They differ most in how they find computers and in what happens to a computer once it is found.
| Tool | How it finds computers | Installed software | Typical fit |
|---|---|---|---|
| Asset Infinity | Agents (Windows, macOS, Linux), network collectors, and connectors to Intune, Jamf, Mosyle, Kandji, Active Directory, Entra ID, vCenter and cloud accounts | Yes, matched to a software catalog with a license position | Teams that want computers on the same asset register as the rest of the organization’s equipment |
| Lansweeper | Agentless network scanning, with an optional agent for remote machines | Yes | IT teams that want deep discovery of everything on the network |
| ManageEngine AssetExplorer | Agent-based and agentless scans | Yes | Teams already running ManageEngine service desk or endpoint tools |
| InvGate Asset Management | Agent and network discovery | Yes | Teams pairing inventory with the InvGate service desk |
| PDQ Inventory | Scans Windows machines on the network | Yes | Windows-heavy teams that also deploy software with PDQ |
| Microsoft Intune | Inventory of devices enrolled in Intune | Yes, for managed devices | Microsoft 365 organizations that manage their endpoints in Intune |
| Snipe-IT | No built-in discovery; records come from imports, integrations or scripts | Through integrations | Teams that want an open-source register they host themselves |
What to test in a trial, whatever the shortlist:
- Matching. Point the tool at a machine that was renamed, or one reimaged with a new host name. Does it recognize the same computer by serial number, or create a duplicate?
- The unknowns. Run a network sweep and see what it finds that no agent reported. That list is your shadow IT.
- The person. Check whether a discovered computer can be linked to a custodian and a location, or only to a host name.
- Software names. “Microsoft 365 Apps for enterprise - en-us” and “Microsoft 365 Apps” should count as one product, or license numbers will be wrong.
- What happens next. When a laptop is found broken, can you raise a repair, record the warranty claim and retire it in the same tool?
For a wider view of IT asset tools, including those built mainly for tracking labeled equipment, see our comparison of the best IT asset tracking software.
How to Run a Computer Inventory Audit
Most of the time in a first computer inventory audit goes on waiting for agents to report from machines that are rarely switched on. The steps themselves are straightforward.
- Set the scope. Decide what counts: desktops, laptops, servers, virtual machines, tablets. Decide which sites and networks are in, and who owns the result.
- Install agents and connect device management. Push the agent with your deployment tool or MDM, and connect the MDM itself so enrolled devices report even before the agent lands.
- Sweep the network. Authorize the address ranges in writing, then run a sweep to find what answers and was never enrolled.
- Match findings to your register. Link each discovered computer to its asset record by serial number. Register the ones that are yours and missing from the register. Dismiss the ones that are not yours, with a reason.
- Work the exceptions. Chase computers not seen for longer than your limit, machines counted twice, and devices on the network that nothing manages.
- Check the software position. Compare installs with the licenses you own, and remove or license what is short.
- Keep it running. Leave the agents, connectors and sweeps on a schedule, so the next audit is a report rather than a project.
How Computer Inventory Works in Asset Infinity
In Asset Infinity, IT asset discovery feeds the same asset register that holds the organization’s furniture, vehicles and machinery. A computer is an asset: it has a custodian, a site, a purchase record and a history like everything else.
Matching you can see
A minute after a scan arrives, each computer is scored against the register on serial number, MAC address, host name and hardware UUID. A confident match links itself. Anything less goes to a review list showing the evidence for and against, and a person links it, registers it as a new asset, or dismisses it with a reason. A dismissed device stays dismissed.
Exceptions with an owner
An hourly sweep raises unknown, duplicate, stale, unmanaged and unauthorized devices, and routes each one to the person answerable for the asset, or to the IT asset team when nobody is. A computer dismissed as “should not be on this network” raises an exception every time it is seen again.
Software and licenses
Agents and MDM connectors report installed software. Each name is matched to a product in a catalog, and the software license management screen compares installs with the licenses you declared: compliant, short or unlicensed, with the devices behind any shortfall. Blocking a product raises an exception on every computer that has it.
History and warranty
Scans are kept as a history, so “what was installed on this laptop on August 12” has an answer when a license audit or a security incident asks. Warranty dates can be looked up from Dell, Lenovo, HP and Apple. Network credentials stay on your collector or in your vault (HashiCorp Vault, CyberArk or Windows Credential Manager), never in the product’s database.
Because computers sit on the same register as everything else, they can be counted in a physical asset inventory, repaired through a work order, and depreciated in the fixed asset accounting books.
What It Costs in Asset Infinity
The asset register starts at $130 a month for up to 500 assets, with unlimited users. IT asset discovery and software license management are priced for your environment by our team. Build a quote for the register, or book a demo to plan discovery for your network. See IT asset management software for everything IT teams get on the platform.
Frequently Asked Questions
What is computer inventory software?
It is software that collects hardware and software details from an organization’s computers automatically, through agents, device management or network scans, and keeps one current record per machine with its custodian, location and last check-in.
Can computer inventory software find computers without an agent?
Yes. A network sweep finds any computer that answers on the scanned ranges, and a device-management connector reports enrolled devices. Without an agent or MDM, though, you will not see installed software, and you will miss laptops that are off the network.
How do you track laptops that leave the office?
Use an agent or a device-management system. Both report from wherever the laptop connects, so its last check-in, user and software stay current. A laptop that stops reporting shows up as stale, which is the early warning that it is lost or out of use.
What is the difference between computer inventory software and hardware asset management software?
Computer inventory software focuses on finding computers and recording what is on them. Hardware asset management software covers the whole life of IT hardware, from purchase and assignment through repair, refresh and disposal. Many tools, including Asset Infinity, do both.
Is there free computer inventory software?
Snipe-IT is open source and free to host yourself, and some vendors offer free tiers for small networks. Check what the free option leaves out: automatic discovery, software matching and support are the usual gaps.