v2.3.0 available for Windows

Market research that shows its work.

KyroxScope is a Windows desktop app for researching what items actually sell for. It runs your own visible Chrome session across eleven eBay marketplaces, collects comparable listings, and keeps every result on your machine — with a data-quality rating on each field, so you can see which numbers are solid and which are guesses.

Download for Windows How it works

SHA-256 published for every buildWindows 10 / 11 · 64-bit101 MB installer · 149 MB portable

KyroxScope — Personal workspace

Local only

Workspace

Overview
Research
Inventory
System & Import

Live browser

Chrome session stays yours

From browser to inventory

Comparable item prices

GermanyUnited KingdomUSAFranceItalySpainNetherlandsAustriaIrelandAustraliaCanada

Listing	Market	Condition	Item price	Data quality
LEGO 10497 Galaxy Explorer	DE	New	€ 92.00	verified
LEGO 10497 Galaxy Explorer	UK	New	£ 78.50	verified
LEGO 75313 AT-AT	DE	Used	€ 610.00	high
LEGO 10305 Lion Knights	US	New	$ 349.99	medium
LEGO 75313 AT-AT	US	For parts	$ 180.00	unknown

Illustration with example figures · the app shows your own research results

eBay GermanyeBay United KingdomeBay USAeBay FranceeBay ItalyeBay SpaineBay NetherlandseBay AustriaeBay IrelandeBay AustraliaeBay Canada

What it does

Built for people who price things for a living

Reselling, sourcing and valuation work all depend on the same question: what does this actually sell for, right now, in this condition, in this market? KyroxScope answers it with evidence you can check.

Eleven marketplaces

Research Germany, the UK, USA, France, Italy, Spain, the Netherlands, Austria, Ireland, Australia and Canada in one run, and compare what the same item fetches in each.

Sold listings, not wishful prices

Switch between active listings and completed sales, filter by condition, listing format and date range, and work from what buyers actually paid.

Comparable groups

Listings are grouped into comparable items so you get a usable price picture instead of a flat list, with distributions across model, colour, size and condition.

Every field rated

Each recognised attribute carries a confidence level — verified, high, medium or unknown. Where the data does not support a conclusion, the app says unknown rather than inventing one.

Your research workspace

Listing results and history are stored in your server-hosted workspace. Research progress is saved on your device so interrupted runs can resume.

CSV and JSON export

Take any result set into Excel, Google Sheets or your own tooling. Saved searches let you repeat a configuration without setting it up again.

How it works

Your browser stays yours

KyroxScope drives a real, visible Chrome window that you are signed into. Nothing is hidden from you, and nothing pretends to be someone else.

Connect your browser

KyroxScope opens a separate, persistent Chrome profile. Your own everyday profile stays untouched, and the window stays visible the whole time.

Sign in yourself

You handle the password, two-factor prompt and any security check directly in the Chrome window. The app never asks for your marketplace credentials.

Run the research

Enter your search terms, pick marketplaces and a date range, and start. If a check appears the app pauses and waits for you — no bypassing, no proxies, no retry loops.

Work with the results

Comparable prices, distributions and data quality appear in your inventory. Results are stored in your server-hosted workspace. Export to CSV or JSON, or save the search and repeat it later.

Using a real browser is not an endorsement by any marketplace. Use automated access only where you are permitted to, and respect checks and access restrictions. KyroxScope contains no stealth scripts, fingerprint spoofing, proxy fallbacks or challenge bypassing.

Download

Two ways to run KyroxScope

Both builds are the same application. Choose the installer for a machine you own, or the portable build when you cannot install software.

Released 15 September 2026Version 2.3.0Not code-signed yet — what that means

Installer

Recommended for your own PC

Popular

Sets up KyroxScope in the Windows Start menu
Keeps your workspace and database between updates
Installs once, starts like any other Windows app

Download Installer

KyroxScope-Setup-2.3.0.exe · 101 MB

Portable

One file, no installation

Runs straight from a folder or USB drive
Leaves no entries in the Windows Start menu
Useful on machines where you cannot install software

Download Portable

KyroxScope-Portable-2.3.0-windows-x64.exe · 149 MB

Installer SHA-256

8B2CF95262D34C0A4DCD5D30DAB1FFB24DE6B4BC29D2A33F19327D56DF39CA16

Portable SHA-256

4BB34869D97E4E1B9B7ABB3576A15CEBDA5E6E767BEA04801E0A7BB5A04E9CA8

System requirements

Operating system: Windows 10 or Windows 11
Architecture: 64-bit (x64)
Memory: 8 GB RAM recommended
Disk space: 500 MB free disk space
Also needed: Google Chrome or Microsoft Edge, and an internet connection for license verification

Integrity

How to know the file is really mine

You are about to run an executable from the internet on your own machine. You should not have to take my word for it, so here is exactly what protects that file and how to check it yourself.

Separate release storage

Downloads are hosted in the public GitHub release repository, separately from this website. This website does not accept executable uploads.

Check the download source

Use the GitHub release linked on this page. Repository access controls protect publishing, but neither a website nor an account is immune to compromise.

Published fingerprints

Every build ships with its SHA-256 hash on this page. Check it after downloading: a mismatch means the file you received is not the file I published — a broken transfer, or something worse.

Windows will warn you — here is why

KyroxScope is currently unsigned. Windows cannot verify its publisher and may show an unknown-publisher or SmartScreen warning, or block execution.

Check the download source and compare the SHA-256 before deciding whether to run it. A matching hash does not replace publisher verification or guarantee safety. Do not disable your antivirus protection.

A certificate is planned as the product grows. Until then I would rather tell you this here than let it surprise you.

Verify your download before you run it

Open PowerShell in the folder you downloaded to. This prints the file fingerprint, which has to match the SHA-256 published above, character for character.

Get-FileHash .\KyroxScope-Setup-2.3.0.exe -Algorithm SHA256

If the hash does not match, delete the file and download it again from this page. A file that claims to be KyroxScope but produces a different hash did not come from me.

Pricing

Try it on your own items first

KyroxScope is licensed software, and a licence is tied to one person and one computer. Rather than ask you to trust a stranger with a payment, start with the trial and check the numbers against items you actually know.

Full licence

Announced with the release

Verified against my server on every start, so a leaked copy cannot quietly spread. That check is also what lets me move your licence to a new machine when you need it.

Unlimited research runs
CSV and JSON export
Moves to a new computer on request
Updates for the version you bought

How to get a licence key

Message me and say which one you want. Keys are issued by hand, so you are dealing with a person rather than a checkout form — expect a reply within a day.

The channels to reach me open together with the public release.

Questions

Before you download

The things people ask most often, answered without marketing language.

Installer or portable — which one should I take?

Take the installer for a computer you own: it registers KyroxScope in the Start menu and keeps your data across updates. Take the portable build for a machine where you cannot install software, or when you want to carry the app on a USB drive.

Does my research data leave my computer?

Yes. Search terms, marketplaces, listing results and their history are sent to your server-hosted workspace. Local research progress remains on your device. Licence verification also happens online. Your eBay password and browser sign-in cookies are not sent to the licensing service.

Do I need an eBay account?

Yes. KyroxScope opens a visible Chrome window and you sign in yourself — the app never handles your password or two-factor codes. It reads the pages you are already allowed to see.

Why does Windows say the publisher is unknown?

KyroxScope is currently unsigned, so Windows cannot verify its publisher and may block or warn about it. Only download from the release linked here and compare the SHA-256. A matching hash is not a guarantee of safety. Do not disable antivirus protection to run it.

How do I know the download is not tampered with?

Compare the SHA-256 printed on this page with the hash of your downloaded file using Get-FileHash. Do not run a file whose hash does not match. A matching hash confirms the download matches the published file, but does not prove it is safe.

Can I move my licence to another computer?

Yes. A licence is bound to one device at a time, and I can release that binding so you can activate on a new machine. Message me and I will reset it.

Which marketplaces are supported?

Germany, the United Kingdom, the USA, France, Italy, Spain, the Netherlands, Austria, Ireland, Australia and Canada — searchable individually or together in a single run.