TrueScreen C2PA Viewer

Free

The viewer page says the check is free. It says there is no account, no upload, no quota, and no watermark, and that the page runs in the browser, which is why it costs nothing to run. No seat price and no credit bundle were printed on that page. The byline date in the page markup is 20 Aug 2026. TrueScreen sells other products, including a forensic browser and a notarization extension, linked from the same site. Those are not priced on the viewer page, so this listing does not copy a fee from them. If a future viewer adds a paid batch mode, cite that page. The free claim here is the viewer's own sentence. It is not a claim about the rest of the TrueScreen catalog.

TrueScreen's viewer page says C2PA is the open provenance standard from the Coalition for Content Provenance and Authenticity, and that Content Credentials is the name readers see on that data. When a camera, editor, or generative tool writes a manifest, the viewer lists the declared title and format, the producing tool, the edit history, source files, any declared use of generative AI, the certificate holder, the algorithm, and the timestamp. It recomputes the signature and reports a manifest that no longer matches its seal as invalid. The page says this works for the containers the standard defines, including JPEG, PNG, WebP, MP4, MOV, MP3, PDF, and office documents, plus a standalone manifest file.

• No upload, no account. The page says the file is read with local file APIs and is not sent to a server.
• Manifest, not pixels. The viewer reports the declared history and whether the seal still matches. It does not verify the scene.
• Not an AI detector. A generative-AI line appears only when the file declares one. No manifest is not a verdict.

1. 1

   Open the viewer and drop a file you are allowed to inspect. The page says it stays in the browser.

2. 2

   If a manifest loads, record the tool, the edit list, any AI declaration, and whether the seal matched.

3. 3

   If no manifest loads, write that down as a missing declaration, not as suspicion.

4. 4

   Keep the pixel question separate. The page says C2PA does not answer whether the scene happened.

• A published image might still carry Content Credentials. Open the TrueScreen viewer and drop the file. The page dated 20 Aug 2026 says the check runs in the browser, with no account and no upload, and with no quota and no watermark. If a manifest loads, record the declared tool, the edit history, any generative-AI statement, the certificate, and whether the recomputed signature matched. That record is the file's declaration. It is not a statement that the scene happened.
• The viewer reports an invalid seal. The page says it recomputes the signature and flags a manifest that no longer matches. Write invalid, and keep the pixel question separate. The page says C2PA does not verify the pixels. A broken seal is a reason to doubt the manifest, not a caption for what the picture shows. Do not send the file to a different service and still call the check local.
• Nothing comes back. The page says a file with no Content Credentials is not a suspicious file, because platforms strip the data and many devices never write it. A screenshot or a recompression can drop the manifest without leaving a marker. Record the absence. Do not call the image synthetic, and do not call it authentic. The page says the viewer is not an AI-image detector.

Hard cases

The case where the first result is easy to over-read.

Questions

Titled sources. These public pages are what the quotes on this listing come from.