SynthID Check

Check images, video and audio for a SynthID watermark. Drag, right-click or pick media to check it in Google's detector.

Checks images, video and audio for a SynthID watermark, the invisible mark that Google's AI tools and partners such as OpenAI add. Drag an image onto the box that appears in the corner of the page. Or right-click any image, video or audio and choose "Check with SynthID". If a site covers its media, right-click the spot and choose "Find media under the cursor", or use "Pick media on this page" in the toolbar menu. The file opens in Google's detector at synthid.com, where you sign in and see the result. The extension only fills in synthid.com's own upload form with the one file you chose: it never signs in or accepts the site's terms for you, and has no batch mode. Only SynthID watermarks can be detected: no watermark doesn't prove a person made it. Text can't be checked. Streaming videos can't be captured. Not affiliated with Google, OpenAI, Nvidia, Kakao or synthid.com. Open source: https://github.com/mikkisnuyh/synthid-check