Checker
What the AI added, and you never told it.
You had ChatGPT, Claude or Gemini write something. Paste both halves of the exchange: what you asked, then what it answered. Composeur lists what appeared between the two.
No exchange to hand?
Nothing is stored. Both texts leave with the page.
And for writing, rather than reading back.
Composeur writes your LinkedIn posts from your notes, and underlines on its own whatever it added. The free plan asks for no card.