Free source checker
Verify a video.
Choose a video file on any device. On a phone, you can also point the camera at a video playing on another screen. Exact image checking is available below too.
Exact file check
Check an image or video file.
NoBo calculates a fingerprint inside this browser and compares it with the public source register. Your image or video itself is not uploaded.
Current registered sources: NBI-1 image, NB-95 video, and NB-136 video.
Only a one-way SHA-256 fingerprint and the byte count are sent.
Current coverage is NBI-1, NB-95, and NB-136. Chosen files are limited to 200 MB. OpenAI, Google, and other provider credentials are not connected yet.
A result names the source signal NoBo found.
An exact result means the chosen file has the same bytes as one registered public file. A live screen result means repeated visual overlap with the one registered sample in this experiment.
Unverified does not mean fake.
Coverage is still very small. NoBo does not decide whether unknown media is real, human-made, or AI-generated by looking at the pixels.