For the pixel-level SynthID watermark, also check the video at Google's SynthID Detector.
Check a video for AI labels and location
Drop in a video to see whether its own metadata says it was AI-generated, and what it reveals about where and on what device it was filmed.
Only the metadata is read, in your browser. The video is never uploaded.Check a video
MP4 · MOV · M4V · any sizeor drop it here. Only the metadata is read, so large files are fine.
How it works
To check whether a video is labelled as AI-generated, drop an MP4 or MOV file above. The checker reads its Content Credentials (C2PA) and AI labels in the metadata, along with any GPS location, phone model and recording date. It can't see watermarks inside the frames; for Google's SynthID, use synthid.com.
What the checker reads
Video files are built from boxes. The checker skips the large box that holds the actual video and reads only the small ones that hold metadata:
| Box | What it can contain |
|---|---|
| C2PA box | Content Credentials: the issuing company and whether AI was used |
| XMP box | AI labels such as trainedAlgorithmicMedia, and the creating tool |
| QuickTime metadata | GPS location, phone make and model, software version, recording date |
| MP4 tags | Encoder (for example FFmpeg), title, author and comment fields |
AI video and labels
Video generators are starting to attach the same kinds of labels as image generators. Content Credentials are the richest: they can name the company and say the video was AI-generated. Like all metadata, they disappear when a video is downloaded from most social networks, screen-recorded or re-exported. That's why some companies also add a watermark to the frames themselves. Google's SynthID Detector at synthid.com checks video for SynthID.
For the full process, including reverse searching and visual clues, see how to tell if an image is AI-generated. The same steps apply to video.
Phone videos and privacy
A video filmed on your phone can carry the exact spot where you pressed record. If you share the original file by email, a cloud link or a forum, that location goes with it. Messaging apps often strip it, but not when you send the video as a file. Our guide to which apps remove metadata applies to videos too.
Questions
How can I tell if a video is AI-generated?
Check what the file says about itself first: AI video tools increasingly add Content Credentials or an AI label. Then test for an invisible watermark like SynthID at synthid.com. Reverse-search a frame to find where the clip first appeared. Visual clues come last, because they're the least reliable.
Do phone videos contain my location?
iPhone and many Android videos store the GPS position where recording started, plus the phone model and time. Drop a video in above to see what yours contains.
Why does an AI video show no label?
Downloading from social media, screen recording or re-exporting in an editor usually removes metadata. A missing label doesn't mean the video is real.
Is there a size limit?
No practical one. The checker reads only the metadata boxes at the start or end of the file, not the video itself, so even multi-gigabyte files work.
Can I remove metadata from a video here?
Not yet. On iPhone, turning off Location in the share sheet's Options removes location from videos too. See our iPhone guide.