PixelSniff

PixelSniff is a free AI image detector that tells you how likely a picture is to be AI-generated. Drop, paste or upload a JPG, PNG, WebP or HEIC image (up to 50MB, batch supported) and several detection engines analyze generation artifacts, noise patterns and metadata. You get one combined AI likelihood score with a clear verdict, per-engine scores, an AI heatmap and reasoning. It recognizes Midjourney, DALL·E, Stable Diffusion, Flux and Gemini images, deepfakes, face swaps and AI-edited photos. No sign-up needed; results stay private with unlisted share links.