Free early build. No account, no card.

It tells you what's fake.

ImposterShield lives in your browser. The photo going around Facebook that was never taken. The listing picture of a room that does not exist. When an image was made by AI, you get a plain flag on it right where you are looking, before you share it, believe it, or send anyone money.

Install free

Chrome or Edge, on Windows or Mac. About two minutes to set up.

Rather wait for the one-click Chrome store version? Leave your email and you will hear the day it is approved. We will not sell your email, ever.

impostershield.com/demo

An actual screen recording, not an animation. Four images, three of them carrying an AI marker in the file. The fourth is the same photograph without one, and it is left alone.

First your browser. Then your computer. Then your phone.

Every piece is labeled with where it really is. We would rather tell you what is not built yet than let you find out after you have paid.

Building now

It flags AI while you scroll

Facebook, news sites, listings, marketplaces. When an image was made by AI and the file still carries the marker the generator wrote into it, you see a flag on it right there on the page. This is the heart of it. Images today, with video and text to come.

Ready now

The free computer scan

Fakes do not just live in your feed. Remote-control software lets a stranger take your mouse, and antivirus walks right past it because it looks like a person using the computer. The scan reads what is running here and says so in plain English. Run it free.

Coming soon

The AI caller check

The call that sounds exactly like your grandson might not be him. The phone app will know your family's real numbers and tell you when a call is not from one of them. In development now, and we will not charge you for it before it exists.

An older couple at a laptop with a credit card in hand.

The call comes at nine at night.

It is your grandson. There has been an accident, he needs money tonight, and he is begging you not to tell his parents.

It is his voice. The pauses. The way he says your name.

He is not on the phone. Thirty seconds of a video he posted two years ago was enough to build it.

Almost every one of these scams is stopped by the same thing: a few seconds of doubt before you act. That is our whole job. Put something between a very good fake and the moment you reach for your bank card.

Photo via Unsplash. Not an actual customer.

Three steps, none of them technical.

  1. Add the extension to your browser

    One click. From then on, AI-made videos, photos, and posts get a plain flag wherever you see them, whether that is YouTube, Facebook, or a listing site you have never heard of.

  2. Run the free scan

    It looks at what is running on your computer right now. You get a short report where every line is a plain sentence: what it is, where we found it, and what to do about it. Nothing is installed and nothing leaves your machine.

  3. Let it keep watching

    New software that installs itself, or something that starts reading your screen this week, and you hear about it the day it happens. Cover your family's computers on the same account.

Regular people with a lot to lose and no IT department.

An older couple looking at a laptop screen together. Anyone with a parent on Facebook

A good chunk of what lands in their feed was never filmed and never photographed. A flag on the fake ones beats arguing about it at dinner.

An older man and a child at a laptop together. Parents of kids who install anything

Free game, free mod, free helper. Something came with it, and it is still running.

A man working alone at a laptop. People who run their life from one laptop

Bank, business, email, taxes. One machine, and no idea what is on it.

The extension is free, and it stays free.

You should be able to see what is fake without paying anyone. The part you pay for is us watching your family's computers so you do not have to.

Free
Free
No account required
  • The extension that flags AI as you scroll
  • The computer scan for Windows, run it whenever you like
  • Plain English, no jargon, run it as often as you want
Family
$9/mo
Up to 5 devices
  • The extension that flags AI as you scroll
  • The computer scan, running all the time
  • Alerts for you and the people you cover
  • The AI caller check on your phone, once it exists

Planned pricing. First release is Windows and Chrome only. The phone app is on the roadmap but not in the first version, and we will not charge you for it before it exists. Waitlist members get in first and get launch pricing.

The honest answers.

Is it really free?

Yes. The extension is free to install today, and there is nothing to buy yet even if you wanted to. It is an early build: good at images, not yet checking text, video, or audio, and it will miss things. The plan is to charge later for the family layer, monitoring and alerts across five devices, and never for the extension itself.

How do you know what's fake?

A growing number of AI tools stamp their own output with a signature. Midjourney and Stable Diffusion write a tag into the file, and Content Credentials is becoming an industry standard for the same thing. The extension reads those markers out of the file itself, which is why it can say an image is AI-made rather than guessing.

How often will it actually flag something?

Less often than you might expect, and we would rather say so up front. It only reports an image whose file still carries an AI marker, and plenty do not, because the marker was stripped, or the image was screenshotted, or the tool that made it never wrote one. So a quiet day is normal and does not mean the extension is broken.

We did build a second layer that guessed at images with no marker, and we switched it off. Tested against real photographs it called most of them AI-made, and a flag that fires on your own family photos teaches you to ignore every flag. It comes back when it is genuinely better than a coin toss, not before.

Isn't this just antivirus?

Antivirus recognizes known bad files. The thing we worry about is not a file, it is behavior. Software that reads your screen, moves your mouse, and signs into your accounts looks exactly like a person using the computer, which is why it walks straight past the tools you already have.

Do you read my files, photos or messages?

No. The scan looks at what programs are running and what they are connected to, never the contents of your documents. It makes no network connections at all, so nothing can leave your machine even by accident. The whole scan is a plain text file you can read in Notepad before you run it, which is a stronger answer than any promise we could write here.

Mac or Windows?

The browser extension works on Chrome and Edge, on both Windows and Mac. The computer scan is Windows only for now; a Mac version comes after.

Is there a phone app?

Not yet. It is third on the list, after the browser extension and the computer scan, and we want to be straight about why. Phones deliberately stop any app from seeing what other apps are doing, so the scan that makes this useful on a computer is not something we can simply move to a phone. When the phone app comes, it will work by knowing your family's real numbers and telling you when a call is not from one of them.

Can you really tell if a voice is fake?

Not reliably, and anyone who tells you they can is selling something. The thing that genuinely stops these calls is hanging up and dialing the number you already have saved, and that is what we intend to automate.

Who is behind this?

A small independent team in Utah. Not a private equity rollup of three antivirus brands you have already heard of.

Stop guessing what's real.

Install free

Chrome or Edge, on Windows or Mac. About two minutes to set up.

Or leave your email and you will hear the day the one-click Chrome store version is approved.