Mask personal data before sending to AI services. Protect emails, phone numbers, URLs, and custom keywords.
Users
3
−2 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#315K
#252K among extensions
Version
0.3.1
updated 11 Mar 2026
Users
monthly, 8 months
Latest, 17 Oct 2026:3 usersMove the mouse over the chart for any month
Ratings count
monthly, 8 months
Latest, 17 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About AI Data Masker
🛡️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.