Clue Tools / De-centralized privacy tools and more — free for personal use
LAN Fixer
Free for home use

Know and see your network, close obvious security risks.

Fix them in one click. LAN Fixer maps your whole network quickly, identifies what each device actually is, and tells you in plain English what is wrong — then fixes it for you. No networking knowledge required.

Version 1.4  ·  Windows  ·  no account  ·  scan results stay on your PC

Free for home use — the full map, every finding, deep port scans and export, with one-click fixes on up to two PCs.
Free two-week trial for organizations — business, government and non-profit, then a license per seat.
The LAN Fixer network map, with every device drawn around the router and color-coded by type
Your devices drawn around the router as they are found, with THIS PC and GATEWAY labeled.
About thirty secondsA quick scan of a typical home network, from one button.
Devices you recognizeNamed by make and model, not a column of addresses.
Fixed, and revertibleTwenty hardening actions, one approval, undo built in.
See it working

Your whole network, in plain English

Every capture below is the real interface, rendered against a representative demo network. Every label and number is what the software actually produces.

The Security tab: a score out of 100, a severity breakdown, and findings written in plain English
A score out of 100, a severity breakdown, every finding in plain English labeled with the machine it affects, and one button to fix them all on the PC you are on.
The All Devices table, sortable by IP, hostname, type, vendor, MAC, ports and status
The All Devices table — address, hostname, type, vendor, hardware address, port count and status, sortable by any column, with Deep Scan All for every device at once.
A router selected, with its manufacturer's security advisories, known vulnerabilities and firmware downloads
Select your router and the manufacturer’s own security advisories, the published list of known vulnerabilities for that make and its firmware downloads are the first thing on the panel — with a Log in to Router button beside them.
Published advisories and firmware links for every manufacturer found on the network
Published advisories and firmware for every make found on the network, with the router flagged first — out-of-date router firmware is the most commonly exploited weakness on a home network.
Live network traffic: connection totals, the split between LAN and internet, and the process responsible
Live connections grouped by protocol, the split between your own network and the internet, and the program on your PC responsible for each destination.
The PC you are using, banner-labeled THIS PC with its computer name, address and hardware address
The machine you are using is banner-labeled THIS PC with its computer name, address and hardware address, so a fix is not applied to the wrong device by mistake.
What it does

Find it, understand it, fix it

One button to scan. Everything after that is written for the person who just wants their network safe, not for a network engineer.

Point-and-click scans

Press Scan. On a typical home network, the map is ready in about thirty seconds. The right interface and range are detected and pre-filled, so most people do not need to type anything.

Visualize your private network

A live, color-coded map of every device around your router, drawn as they are found. Drag to pan, hold Ctrl and scroll to zoom, click any device for its detail.

No networking knowledge required

Every finding states what it is, why it matters and what to do, with severity from Critical to Info and a “what this does” note before you change anything.

Devices identified automatically

39,227 manufacturer records, hostname lookup and service fingerprinting turn a column of addresses into a list of recognizable things — “office-nas · Synology · Server”.

Hears the quiet devices too

Devices announce themselves on a network in several different ways, and LAN Fixer listens for all of them. Apple equipment, smart televisions, printers and Windows computers appear even when they do not answer a direct inquiry.

Security advisories by make and model

Straight to the manufacturer’s own advisory and firmware pages for the hardware actually on your network — 245 curated links across 180 brands, plus a search of published vulnerabilities for the exact make and model.

One-click fixes, with undo

Twenty automated hardening actions for the PC LAN Fixer is running on, approved once for a whole batch rather than once per fix, and revertible from inside the app afterwards.

Risky services flagged on sight

Twenty high-risk services are recognized the moment they are seen — remote command access, file transfer, file sharing, remote desktop, remote screen control, exposed databases and more — each one rated and explained in plain English.

Deep scan all 65,535 ports

The complete picture of any device, or of every device at once, running in parallel with live progress and cancellable at any time.

See what your PC is talking to

Every open connection on this PC, grouped by protocol, split between your own network and the internet, with the address, the service and the program responsible.

The practical tools, built in

Log in to Router, open any device’s own web page, start a remote desktop or remote screen session, wake a sleeping computer over the network, change your hardware address for privacy, and export everything as a spreadsheet or a formatted report.

Your scan results stay on your PC

No account, no sign-up, no cloud service. The dashboard is served from your own machine, and scan results, device names and notes are not sent to us. The application goes online only for a few tasks: finding your network’s internet address, looking up published vulnerabilities and downloading the location database when you ask, and license activation and checks for organizations. The privacy notice lists each one.

Who it is for

Built for the person everyone asks for help

Home users who want to know what is on their Wi-Fi and whether anything is exposed. Parents checking which devices are connected. Home-office and remote workers who need their own machine hardened without calling IT. Small businesses with a handful of PCs, a network drive, a printer and no full-time IT person. And the family technical-support person who wants to audit a relative’s network quickly.

The questions it answers

  • Is there a device on my Wi-Fi that should not be? Scan, and see the devices on it by name and make.
  • Is my router safe? One click to its admin page, one click to the manufacturer’s advisories and firmware.
  • What is my PC sending out to the internet? The live traffic view, by protocol, destination and program.
  • Am I exposed? A score out of 100 and a prioritized list of what to fix.
  • Can you just fix it? One button, one approval, done — and revertible.
Why it is different

Most scanners stop at “here is the problem”

LAN Fixer explains it, rates it, and offers to close it.

 LAN FixerMost network scanners
What you get backA picture of your network, with devices you recognizeA list of addresses
Open portsExplained, rated, and closed for you on requestAssume you know what port 445 means
After the findingApplies the fix, and can undo itStop at the finding
Firmware researchStraight to your router’s own advisory and firmware pageLeft to you
Who it is built forThe person who wants their network safeNetwork engineers
Account and cloudRuns on your PC, no accountFrequently require both
Device countsLive, passive and historical counted separately and explainedOne inflated total
Licensing

Free for home use.
Licensed for organizations.

Everything that shows you your network is free for personal and household use. Organizations begin with a free two-week trial.

Home & personal

Free

No account. No sign-up. No time limit.
  • Unlimited scanning and discovery
  • The full network map and all security findings
  • Deep port scans across all 65,535 ports
  • Export, waking a sleeping computer, and the practical tools
  • One-click fixes on up to two PCs
Download free for Windows
Business · Government · Non-profit

Free two-week trial

Then a license per seat.
  • Fourteen days free, with no card and no sign-up
  • One-click fixes on every machine you license
  • Volume and site-wide deployment
  • Purchase orders and invoiced billing accepted
  • Buy online and activate immediately with your key
Buy a license →
Organization licenseSeatsPrice per seat
Small organization1 to 10$19.99
Medium-sized organization11 to 49$14.99
Large organization50 and over$9.99

Fixes on all licensed devices and email support at every tier; priority support and purchase orders from eleven seats; site-wide deployment and invoiced billing from fifty. Buy online, receive an automated invoice as a downloadable PDF, and activate immediately with your license key.  ·  See license options and buy

Questions

Straight answers

Do I need to know anything about networking?
No. Press Scan and LAN Fixer does the rest, then explains itself. There is no command line, no packet syntax and no manual to read first. Every finding says what it is, why it matters and what to do.
How long does a scan take?
A quick scan of a typical home network finishes in about thirty seconds. A deep scan of all 65,535 ports on a device takes longer, runs in parallel, shows live progress and can be canceled at any time.
Which devices does it change when I press Fix?
Only the PC LAN Fixer is running on. Every fix button, confirmation and report names that computer by name and address, and states plainly that no other device is touched. Anything found on another device comes with manual instructions instead.
Can I undo a fix?
Yes. An undo script is saved before a fix is applied, and any fix can be reverted from inside the app afterwards. A batch of fixes needs one approval rather than one per fix.
Does it change my router’s settings or password?
No. It detects an exposed administration panel and takes you straight to it, along with the manufacturer’s advisories and firmware downloads. You make the change yourself.
Does anything leave my computer?
Your scan results, device names, notes and traffic details do not leave it, the dashboard is served from your own machine, there is no account, and verbose logging is off unless you turn it on. The application does go online for a few tasks: to learn your network’s internet address (your router is asked first, public STUN servers only if it cannot tell); to look up published vulnerabilities at the US National Vulnerability Database when you ask, sending the manufacturer, model and version you enter; to download DB-IP’s location database when you ask, after which addresses are located on your computer; and, for organizations, to activate and check a license and, during an unlicensed evaluation, to send a weekly check-in. The privacy notice lists what each one sends.
Can it watch my network continuously?
No. LAN Fixer scans when you ask it to. It also cannot measure other devices’ bandwidth on a switched network, and it says so in the product rather than guessing.
Does it keep my results between sessions?
Yes. Reopen the app and your last scan is still there, clearly marked as historical until you scan again. Notes and favorites you add to a device are stored on your own machine.
Free for home use

Download LAN Fixer

Your network, finally in plain English. Install it and see what is on your network. No account, no sign-up, nothing to configure.

Version 1.4  ·  Windows  ·  no account required

Operating systemWindows
AccountNone — no sign-up
Where it runsFrom the system tray
DashboardServed from your own PC
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