Free tool · by Nehlos

Stillgate for AI

Nothing sensitive leaves.

Paste your prompt below. We'll flag anything sensitive — SSNs, card numbers, credentials, PHI, CUI, and confidential business data — and give you a redacted version that's safe to send to ChatGPT, Claude, Gemini, or Copilot.

🔒 100% on-device — your text never leaves this browser tab. No upload, no logging, no account.
✅ Safe to paste — sensitive data replaced
Copied to clipboard — paste it into your AI tool.
Redaction reduces exposure but isn't a guarantee. Always review before sharing. Placeholders keep your prompt useful to the AI.

Want this automatically, every time you type?

AI Privacy Guardian warns you in real time and blocks sensitive data before you hit send — across every AI platform.

Get AI Privacy Guardian →