C2PA Viewer

Properties

category: provenance
maturity: emerging
approach: Free web tool built on the official C2PA JavaScript SDK (contentauth/c2pa-js) that lets anyone upload an image or video to inspect its Content Credentials manifest, verify signatures, and read provenance assertions. Supports JPEG, PNG, WebP, MP4, and MOV; does not support PDF.
access: free
owns: A no-account, browser-based utility for inspecting and verifying C2PA manifests in arbitrary media files.
distinctFrom: Unlike c2pa (the standard) or trufo/truepic (commercial certificate authorities that issue credentials), C2PA Viewer only reads and verifies existing Content Credentials; unlike origin-lens (a native, on-device iOS app), it is a simple, unaffiliated web utility with no offline component.
source: C2PA Viewer
notes: Site explicitly states it is 'an independent tool and is not affiliated with or endorsed by the C2PA coalition or its members.' No named individual or company operator could be found anywhere on the site; included because it is a real, functioning, distinctly-scoped tool built on the official C2PA open-source SDK (linked directly to github.com/contentauth/c2pa-js), but the thin attribution is a real weakness and should be weighed heavily in validation. Lowest-confidence candidate in this batch for that reason -- verify this is not a disposable SEO/clone site before merging.

category: provenance
maturity: emerging
approach: Free web tool built on the official C2PA JavaScript SDK (contentauth/c2pa-js) that lets anyone upload an image or video to inspect its Content Credentials manifest, verify signatures, and read provenance assertions. Supports JPEG, PNG, WebP, MP4, and MOV; does not support PDF.
access: free
owns: A no-account, browser-based utility for inspecting and verifying C2PA manifests in arbitrary media files.
distinctFrom: Unlike c2pa (the standard) or trufo/truepic (commercial certificate authorities that issue credentials), C2PA Viewer only reads and verifies existing Content Credentials; unlike origin-lens (a native, on-device iOS app), it is a simple, unaffiliated web utility with no offline component.
source: C2PA Viewer
notes: Site explicitly states it is 'an independent tool and is not affiliated with or endorsed by the C2PA coalition or its members.' No named individual or company operator could be found anywhere on the site; included because it is a real, functioning, distinctly-scoped tool built on the official C2PA open-source SDK (linked directly to github.com/contentauth/c2pa-js), but the thin attribution is a real weakness and should be weighed heavily in validation. Lowest-confidence candidate in this batch for that reason -- verify this is not a disposable SEO/clone site before merging.