AI Data Masker

About

🛡️Mask personal data before sending to AI. Protects emails, phone numbers, URLs, and custom keywords. Free & Pro plans.

### Detailed description

**AI Data Masker** automatically masks personal information in your text before you send it to AI services — keeping your sensitive data safe.

**How it works:**
1. Type your message in ChatGPT, Gemini, or other AI services
2. Click the 🛡️ button — personal data is replaced with tokens like `[EMAIL_1]`, `[PHONE_1]`
3. Send the masked text to the AI
4. Click ↩️ to restore the original values when needed

**Automatically detects and masks:**
- 📧 Email addresses
- 📞 Phone numbers (Japanese & international formats)
- 🔗 URLs
- 📮 Postal codes
- ✏️ Custom keywords (your company names, project codes, etc.)

**Supported AI services:**
- ✅ ChatGPT (chatgpt.com) — Free
- ✅ Gemini (gemini.google.com) — Free
- ✅ Claude (claude.ai) — Pro
- ✅ Microsoft Copilot — Pro
- ✅ Perplexity AI — Pro

**Free plan:**
- Basic masking (email, phone, URL, postal code)
- Up to 5 custom keywords
- 10 mask history entries
- ChatGPT & Gemini support

**Pro plan:**
- All Free features
- Unlimited custom keywords
- Unlimited mask history
- All 5 AI services
- Pre-send PII warning (alerts before submitting unmasked data)

All processing is done **100% locally** in your browser. No data is ever sent to external servers.