C2PA Content Credentials Checker

Upload any JPEG, PNG, or MP4 and instantly detect whether it carries C2PA Content Credentials — the JUMBF box used by Adobe, Microsoft, Leica, and others to embed creator provenance. Runs in your browser; file never uploaded.

100% freeNo sign-upRuns in your browserNo upload · data stays private
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What is C2PA?

C2PA (Coalition for Content Provenance and Authenticity) is an open standard for embedding cryptographically signed provenance metadata into media files. It tells you who created a file, what tools were used, and whether AI was involved. The data lives in a JUMBF box in the file's binary. This tool scans that binary for the "jumb" and "jumd" magic bytes plus common CAI XMP markers, then reports what it found.

How to use this tool

  1. Upload a JPEG, PNG, WebP, or MP4 file.
  2. The tool scans the binary for JUMBF markers and C2PA XMP headers.
  3. Results show whether credentials are present and which signals were detected.

Why it's private

All scanning is done in your browser using the File API and ArrayBuffer. Your file is never sent to a server. For full C2PA signature verification (which requires cryptographic validation of the signing certificate), use the official C2PA Verify tool.