Extract hidden thumbnails
Cameras and editors leave a trail of low-res thumbnails inside every file. Sometimes they show what got cropped, blurred or removed.
69 files analysed · 1.2 GiB processed
Upload
Why files have multiple thumbnails
Cameras bake a small IFD1 thumbnail so the back screen has something to show without decoding the whole frame. RAW files go further and ship a full-resolution JPEG, which is what most editors display before they actually touch the sensor data. HDR and stacked formats can keep every contributing exposure baked into the file.
A crop or a face blur often forgets to update those embedded thumbnails, so the older framing or content survives even when the visible image looks different.
What you can find
Pre-crop versions of edited photos. Older revisions baked into RAW dev exports. Faces that were blurred only in the main image. ICC and IPTC preview blobs. Multi-Picture Format images from iPhone Live Photos and HDR captures.
How we surface them
We walk every known binary tag (ThumbnailImage, PreviewImage, JpgFromRaw, OtherImage, MPImage1 through MPImage4, EmbeddedImage), extract any that exist, dedupe identical bytes and render them as a small grid on the analysis page. Click any cell to open the full-size embedded thumbnail.