Highly accurate. Our in-house detection model is over 99% accurate in our testing on AI-generated images and real photos, with or without a watermark in the file. When a SynthID watermark or a verified AI signature is found, the verdict is 100% certain. For the strongest result, upload the original file rather than a small or heavily compressed copy.

How does the AI image detector work?

Our own detection model reads the pixels of every image, gives its confidence and draws a heatmap of the areas made with AI. Alongside it, Phrasly looks for proof inside the file: a SynthID watermark, an AI signature (C2PA Content Credentials) or the generation settings AI tools write into images. A watermark or a signature verified against the C2PA trust list makes the verdict 100% certain.

Can it detect ChatGPT and DALL-E images?

Yes. Images from ChatGPT and OpenAI's image models carry OpenAI's signature and, on newer models, an invisible SynthID watermark, and we check for both. When a screenshot or re-upload has removed them, our pixel-level detection still catches the image.

Can it detect Gemini and Nano Banana images?

Yes. Images saved from Gemini, Nano Banana included, carry a signature from Google that records the SynthID watermark Google applied, and we verify it. When that signature has been stripped, our pixel-level detection does the work.

Can it detect Midjourney, Stable Diffusion and FLUX images?

Yes. Our detection model reads the image itself, so it catches Midjourney, Stable Diffusion, FLUX, Ideogram, Grok and other generators even when the file carries no watermark, signature or metadata.

Can it tell if a real photo was edited with AI?

Yes, even when the edit is small. When only part of an image was made with AI, such as a new background, a swapped face, a retouched detail or an object added with generative fill, the result is Partially AI and the heatmap highlights the edited areas.

SynthID is an invisible watermark from Google DeepMind, woven into an image's pixels as it is generated. Google uses it on images from Gemini and its other models, and OpenAI adds it to its newer images. It is built to survive screenshots, resizing and recompression. When we find it, the verdict is 100% certain.

What are AI signatures (C2PA Content Credentials)?

Content Credentials are a signed record inside an image file, built on the open C2PA standard. They say which tool made the image and what was done to it, and the signature shows whether the record is intact. OpenAI, Google, Adobe, Microsoft and FLUX add them to AI images. We verify every signature against the official C2PA trust list.

Does it work on screenshots?

Yes. A screenshot removes the file's signature and metadata, but our detection model reads the pixels themselves, so screenshots, re-uploads and saved copies from social media can all be checked.

Are my images stored?

No. Your image is checked in memory and discarded when the scan ends. It is never saved to our servers or to your history, and nothing you check is used to train a model.

Is there a limit on how many images I can check?

Check as many images as you need, each up to 20 MB in JPG, PNG, WebP, HEIC, AVIF or GIF. To keep the detector fast and free for everyone, unusually heavy use from one browser or network is paused for a while.

Used by over 5 million users

Free AI Image Detector

Q: Can it detect AI images without a watermark?

Yes. Watermarks and metadata are easy to strip, so Phrasly does not depend on them. Our in-house detection model reads the image itself and catches AI images with no watermark, signature or metadata at all, including screenshots and re-uploads.

Find out if a photo or artwork was made or edited with AI. Our own detection model is over 99% accurate, with or without a watermark.

Try an example image:

Drop an image to check it for AI

or paste it anywhere on this page with Ctrl+V

JPG, PNG, WebP, HEIC, AVIF or GIF, up to 20 MB

Try alsoAI Detector

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We look for SynthID watermarks and AI signatures, then our model reads every pixel.

AI signature
File metadata
Pixel detection
SynthID watermark

How to Check If an Image Is AI

Add your image.
Upload a photo, drop it onto the page, paste it with Ctrl+V or use an image link. JPG, PNG, WebP, HEIC, AVIF and GIF up to 20 MB all work.
Phrasly checks it.
The scan starts at once. Our own detection model reads every pixel, while Phrasly checks the file for AI signatures and SynthID watermarks.
Read your verdict.
See the verdict, a confidence score and a heatmap of exactly where the AI is, with every check listed beside it.

Free forever, with no sign-up. Your images are never stored.

What every scan checks

Our Own Model. Then Every Proof.

Watermarks and metadata are easy to strip, so they can't be the whole answer. Phrasly's in-house detection model reads the image itself and catches AI images with no watermark at all, even photos that were only lightly edited with AI. When the file does carry proof, we check that too.

Our In-House Detection Model: Trained on millions of real photos and AI images from every major generator. It reads the pixels themselves, so it catches AI images after every watermark and tag is stripped.
SynthID Watermarks: Google DeepMind's invisible watermark, used by Google and OpenAI. When it is there, the verdict is 100% certain.
Verified AI Signatures: ChatGPT, Gemini, Adobe Firefly, Copilot and FLUX sign the images they make. We verify every signature against the official C2PA trust list.
Catches Small AI Edits: A swapped background, an added object, a retouched face. Our model flags photos that were only partly changed with AI and marks exactly where.
Works on Screenshots: Screenshots, re-uploads and copies saved from social media lose their metadata. Our model does not need it.
A Confidence You Can Weigh: 100% when proof is found. Otherwise our model's own certainty, so you know how much weight to give it.

Accuracy

Built to Be Right, Not Just Fast

An in-house model trained on millions of real photos and AI images, with the proof inside the file checked on top.

Accurate in our testing, on AI images with or without a watermark.: 99%+
Certain when a SynthID watermark or a verified AI signature is found.: 100%
Images stored. Every scan is checked in memory and discarded.: 0

Try it yourself

Can You Spot the AI?

AI images look real now. Guess which of these were made with AI, then see what Phrasly finds in each one.

AI or real?
Take a close look, then make your call.
AI or real?
Take a close look, then make your call.
AI or real?
Take a close look, then make your call.
AI or real?
Take a close look, then make your call.

Detects Every Major AI Image Generator

New image generators arrive every month, and the best of them make pictures that fool almost anyone. Phrasly catches them all.

Some images carry proof in the file, like the signatures from ChatGPT, Gemini and Adobe Firefly. Many don't, and some people strip it on purpose. Our in-house model doesn't need any of it: it reads the pixels themselves, so Midjourney, Stable Diffusion, FLUX and the rest are caught the same way.

AI image generators we detect

ChatGPT and DALL-EGoogle GeminiNano BananaMidjourneyStable DiffusionFLUXAdobe FireflyGrokIdeogramMicrosoft CopilotRecraftLeonardo+ more

Who Uses Phrasly's AI Image Detector

From newsrooms to classrooms, check an image before you trust it.

Journalists and fact-checkers

Verify a viral photo or a source's picture before it runs, with evidence you can cite.

Teachers and schools

Check artwork, photo assignments and project images submitted as original work.

Marketplaces and dating apps

Catch AI-generated profile photos and listing images before they reach your users.

Brands and creators

Confirm that what you license, publish or repost is the real thing.

FAQ

Frequently Asked Questions

Yes, free forever. There is no account, no sign-up and no credit card. Every result includes the verdict and the reason behind it, plus a confidence score and a heatmap whenever the image can be called.

Know what's real, in seconds.

Drop in any image and get a verdict, a confidence score and a heatmap. Free forever, no sign-up, and your image is never stored.

Check an Imagefor free

Add your image.

Phrasly checks it.

Read your verdict.