Check images, files and selected content
Tools to look closer at an image or file
Some tools inspect file details on your device. Text analysis and selected audio analysis send only the content you review and confirm.
PDF File Checker
Look for saved changes and other file details in a PDF. This check runs in your browser; it cannot prove who edited the document or whether AI was used.
C2PA Content Credentials Marker Check
Looks for a supported C2PA marker in an image. It does not read claims, verify signatures or identify who made the file.
Image Metadata Marker Check
Checks JPEG, PNG and WebP images for recognized EXIF and XMP blocks. It does not read camera, date, GPS or other metadata values.
Content Credentials Quick Check
Check whether a file contains signs of Content Credentials. Finding a marker is only a first step; this quick check does not verify the signature.
English Text AI Detector
Review English text for AI-writing signals. See the word, character, byte and credit preview before deciding whether to submit.
AI Audio Clip Detector
On the Web, you can choose a 1–30-second clip. In the iPhone app, you can choose a 10–30-second clip when audio checks are available. Results apply only to the selected clip.
Video Frame Checker
Review selected frames from a video and look for visual changes worth a closer look. A frame alone cannot tell you whether the whole video is AI-generated.
Check images, files and selected content
A clue is not a final answer.
Some checks stay on your device. Image checks only look for supported EXIF, XMP and C2PA markers; they do not read metadata values or C2PA claims, or verify signatures. PDF details and video frame previews also run in your browser.
Remote analysis starts with your confirmation. Text and selected audio are sent to an analysis service only after you review the scope and confirm.
Check the source too. Messaging apps may remove file details. Compare a result with the original and its source before deciding what it means.