hiddentokens
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How many secrets have you already given to ChatGPT?

Protecting tomorrow is not enough: yesterday's files are already with OpenAI or Anthropic. Drop your history export and see, in numbers, how many names, IBANs, ID numbers and case numbers it holds, and which conversations to delete first.

1 · Export ChatGPT

  1. Settings → Data controls
  2. Export data → confirm
  3. You receive an email with a .zip file

1 · Export Claude

  1. Settings → Privacy
  2. Export data
  3. You receive an email with a .zip file

2 · Drop the file here

How can you check? This page forbids the browser from making any connection (connect-src 'none' in its security policy) and loads no analytics. Turn Wi-Fi off before you drop the file: the analysis works just the same. The engine is the one inside the Hidden Tokens app.

Turn off the tap

Hidden Tokens codes names, accounts and case numbers on your computer before they reach Claude or ChatGPT, then puts the real names back into the answer. Your next export will only contain codes.

The scanner counts what the Hidden Tokens engine recognises: an unusual proper noun can be over- or under-counted, and identifiers the engine does not know yet are not counted. Only your own messages, attachments and Claude project documents are read, never the AI's answers. Values are shown on your screen only, and only if you ask.