# AI Image Detector Free: Check If an Image Is AI-Generated - [Home](/) - - - [Tools](/tools/) - - - AI Image Detector Free tool # AI Image Detector Check whether an image was made by a generative model. Reads signed Content Credentials, embedded metadata and a local vision model -- all on your device. Nothing is uploaded. Drop an image here, or click to choose JPEG - PNG - WebP - AVIF **Choose image ## What it actually checks ### Content Credentials (C2PA) Verifies the signed provenance manifest written by Firefly, OpenAI, Google and participating cameras. When present and valid, this is proof rather than a guess -- but platforms strip it on upload, so it is usually missing. ### Embedded metadata Looks for generator names in EXIF and XMP, and for the prompt dumps that diffusion interfaces write into PNG text chunks. Fast and often revealing, but unsigned text that anyone can forge. ### Local vision model A 14.6M-parameter vision transformer runs in your browser via WebAssembly. It is the only signal that works on a stripped image, and also the least reliable -- treat its score as a lead, not a finding. ### What it cannot do - Read SynthID.** Google withholds the detector so the watermark cannot be reverse-engineered and stripped. No self-hosted tool can check it. - **Prove an image is real.** Missing credentials are the norm, not a sign of authenticity. - **Settle a dispute.** The model is wrong often enough that it must never be the basis of an accusation. ## Check images privately, then store them privately This detector never uploads your image -- every check runs in your browser. The files you keep afterwards deserve the same guarantee. DragBin protects files with [client side](/client-side-encryption/), [quantum resistant encryption](/post-quantum-encryption/) (ML-KEM + AES-256) keeping sensitive data private with a [zero knowledge](/zero-knowledge-encryption/) security architecture. - Get 25GB quantum resistant storage forever - Unlimited sharing, unlimited bandwidth and unlimited file size uploads - Integrated Global CDN and preview media in 4k/8k [Try DragBin Today](https://dragbin.com) ## Frequently Asked Questions ### Is this AI image detector free? Yes. It is free with no account, no sign up and no limit on how many images you check. ### Are my images uploaded to a server? No. Every check runs in your browser -- the metadata reader, the Content Credentials verifier and the detection model all execute on your device. Your image never leaves your computer and nothing is stored. One exception is worth naming: on the minority of images that do carry Content Credentials, validating the signing certificate can contact the issuing certificate authority to check whether it has been revoked. That request carries the certificate's identifiers, never your image. ### How accurate is it? It depends entirely on which signal fires. Content Credentials are cryptographically signed, so when they are present the result is verifiable fact. The visual model is a statistical guess: independent benchmarks put detectors of this kind at roughly 70-85% on image generators they were not trained against, and accuracy falls another 10-25 points on compressed images, resized images and screenshots. Never treat the model score alone as proof. ### Why does it say 'inconclusive' so often? Because most images have been stripped of their provenance. Instagram, X, Facebook, TikTok and LinkedIn remove Content Credentials and metadata during upload processing, which leaves only the visual model to go on. An inconclusive result means the evidence is missing, not that the image is real. ### Can it detect SynthID watermarks? No, and neither can any other tool you can run yourself. Google does not release the SynthID detector, because publishing it would let people reverse-engineer the watermark and strip it. Detection is only available through Google's own portal and a preview API limited to partner organisations. ### Why does the first check take longer? The detection model is downloaded to your device the first time you scan an image, which is a one-time cost of about 15 MB. Your browser caches it afterwards, so later checks start instantly. The Content Credentials and metadata results appear immediately either way. --- Canonical: https://www.dragbin.com/tools/ai-image-detector