Watermark Finder
Checking engineโ€ฆ

Settings

Everything here is stored in this browser only.

API endpoint

The Worker this frontend talks to. The default is baked in at build time; overriding it here lets one deployment point at a local Worker or a preview environment.

Build-time default: https://watermark-finder-api.pennypicher-api.workers.dev

Workspace

An anonymous namespace that keeps your analyses separate from anyone else's. There is no account and no personal data: the token in this browser is the only way back to your history, so clearing site data or switching browsers starts you fresh.

not created yet

Service status

The API did not respond.

What this tool can and cannot tell you

  • Covert channels are measured, not guessed. Hidden characters and decoded payloads are facts about the bytes of the document.
  • The style score is a probability about register. It says how much the writing resembles unedited assistant output โ€” not who wrote it. It is unreliable below roughly 150 words, on translated text, and on edited output.
  • A clean result proves nothing. Normalising a document strips every covert channel this tool can see.
  • Do not use a score on its own to accuse anyone. Corroborate with drafts, document history or authorship metadata.