OmniShield

Free tool

AI Prompt Sanitizer

Remove emails, tokens, and private data before sending to AI tools. Everything runs entirely in your browser. Nothing is sent to our servers.

Your prompt

Sanitized output

0secrets / PII replaced
Runs 100% in your browser. We never see this text.

Want this automatic in ChatGPT & Claude?

OmniShield masks secrets at send time inside your browser — so you don’t have to sanitize manually every time.

Add to Chrome — Free

How to use it

  • Paste anything you were about to send to an AI chat.
  • Review the sanitized output and hit counts.
  • Copy the clean text into ChatGPT, Claude, Gemini, or Cursor.

Why sanitize before ChatGPT?

API keys, .env dumps, JWTs, and personal data often end up in AI chats while debugging. Once sent, that text can live in provider logs and chat history. Sanitizing first — or installing OmniShield for automatic send-time masking — reduces accidental leaks without blocking AI tools.

Sharing configuration? Read Is It Safe to Paste a .env File Into ChatGPT? for a practical guide to preserving useful context without exposing live credentials. If you are choosing a local sanitizer versus send-time masking, see OmniShield vs Heedful, Secret Sanitizer, and PasteSecure.

FAQ

Is my text uploaded to OmniShield?

No. The AI Prompt Sanitizer runs entirely in your browser. Text never leaves your device.

What does it detect?

Common API keys (OpenAI, AWS, GitHub, Stripe), JWTs, emails, credit cards, bearer tokens, SSH private keys, database URIs, and more.

How is this different from OmniShield the Chrome extension?

This page is a manual sanitizer for one-off prompts. The OmniShield extension masks secrets automatically at send time inside ChatGPT, Claude, Gemini, Perplexity, and Cursor.

Should I paste real secrets into this tool?

Prefer fake/sample values when testing. The tool is local-only, but treat real credentials carefully — use the Load sample button to try it safely.

Want this every time you hit send?

Install OmniShield for automatic send-time masking on supported AI sites — Free forever for core protection.

Explore more free resources in Tools, including safe prompt templates and Cursor rules.