Dedicated Provenance Scanner
SynthID Checker
Inspect supported provenance evidence in an image or audio file. We only report SynthID when an authoritative provider check can verify it.
What this check can verify
- OpenAI-supported SynthID signals when OpenAI verification is enabled.
- C2PA Content Credentials and readable metadata.
What it cannot verify
- Google production SynthID without an authoritative integration.
- Gemini text watermarking or a universal AI watermark.
How to interpret your results
SynthID is provider-specific. A result is useful only when it comes from a supported verification path, so this checker shows unavailable rather than guessing.
Absence of evidence is not evidence of absenceNo supported signal detected does not prove a file was created by a human. Metadata and credentials can be removed by screenshots, re-saving, editing, social media compression, or unsupported export tools.
Frequently asked questions
Can this detect every SynthID watermark?
No. Provider-controlled watermark systems need a supported authoritative verification path.
Does no signal mean human-created?
No. It only means the completed checks found no supported signal.