Download

Install the free extension

Free forever. No account required. Quick installation and zero setup.

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After installing

Confirm it works

Try an AI chat in a new tab or refresh a page that was already open.

01
Open an AI assistant
ChatGPT, Claude, Gemini, or any other chat — in a new tab, or refresh their page.
02
Try typing in the prompt
Click the prompt and type or paste.
03
Block happens immediately
You’ll see a notice that the prompt is blocked — prompt prevention protection is working.

One install per browser profile
Each browser and profile is separate — install wherever you want protection.
New assistants are covered automatically
You don’t maintain a site list. Detection finds AI prompt boxes as they appear.
Prompt text stays on this device
Detection runs locally. We never read, store, or transmit what someone typed into a prompt.

Family and Educator & Enterprise plans add enrollment, policy, and an admin portal.