Lankio Tools

C2PA & Content Credentials Checker

Processed in your browser

See whether a photo or video carries a C2PA manifest.

Drag and drop a file, or click to browse

JPEG, PNG, WebP, AVIF, HEIC, MP4, or MOV — analyzed entirely in your browser via WebAssembly.

How it works

  1. 1Choose or drag in an image or video file.
  2. 2The official open-source c2pa-web SDK (compiled from Adobe's c2pa-rs to WebAssembly) reads the file's C2PA manifest store directly in your browser tab.
  3. 3If a manifest is found, its claim generator, signer, validation status, and assertions are shown. Nothing is uploaded — the WASM module itself is self-hosted, not loaded from a third-party CDN.

Privacy

Analysis runs fully client-side via WebAssembly. Your file never leaves your device, and no third-party service is contacted to perform the check.

Supported formats

JPEGPNGWebPAVIFHEICMP4MOV

Limitations

Detecting a manifest — or not finding one — proves nothing about whether content is AI-generated. Many AI tools don't write C2PA data, many cameras and editors strip it on export or re-save, and a present manifest only reflects claims made by whoever created it. Treat this as one signal among several, not a verdict. See our What Is C2PA? guide for more.

Frequently asked questions

Does a missing manifest mean a photo wasn't AI-generated?
No. Most AI image generators do not embed C2PA data, and even when they do, resaving, screenshotting, or re-uploading a file to many platforms strips it. Absence of a manifest tells you nothing definitive.
Does a present, valid manifest prove authenticity?
It proves the manifest is cryptographically intact and, if trusted, signed by a known issuer — not that its claims are true. The manifest reflects whatever the signer chose to assert.
Can this tool bypass or remove Facebook's AI labels?
No, and that isn't its purpose. This tool inspects C2PA data already in a file. Platforms can and do run independent AI-detection systems that don't rely on embedded metadata at all.