Use AI Fearlessly
PrivacyShield detects and masks your personal data before it reaches ChatGPT, Claude, or any AI chatbot. Your real data never leaves your browser.
Your message
Sent to AI (masked)
Privacy Shouldn't Be a Luxury
Every day, millions of people share sensitive data with AI — medical records, financial details, client information — without realizing it's stored, trained on, and potentially exposed. Enterprise privacy tools exist, but they cost hundreds per month and require IT teams to deploy. We believe everyone deserves protection, not just corporations with security budgets. PrivacyShield is free, runs entirely in your browser, and takes 10 seconds to install. No accounts, no subscriptions, no servers. Just protection that works.
Free Forever
Core protection is free. Always. We’ll never put basic safety behind a paywall.
Your Device, Your Data
Zero servers. Zero data collection. We physically cannot see your information.
For Everyone
Freelancers, students, doctors, lawyers, developers — anyone who uses AI with real data deserves protection.
You're Sending Your Secrets to AI
Every time you paste personal information into an AI chatbot, you're handing it over to a third-party server — permanently logged and potentially used for model training.
“I have type 2 diabetes and my doctor prescribed metformin 500mg twice daily. Can you help me understand the side effects?”
AI services store your prompts. Your health data isn't yours anymore.
“My credit card 4532-1234-5678-9012, account number 8839201-44, expires next month. What's the best way to dispute a charge?”
One data breach exposes everything you've shared.
“My OpenAI key is sk-proj-Tx8m... Can you help me debug why my API calls are failing with a 401 error?”
AI training data can be extracted. Your secrets aren't secret.
73% of employees paste sensitive data into AI chatbots without realizing the risk.
Three Steps to Privacy
Simple protection that works in the background
Type Normally
Write your prompt as you always do. PrivacyShield watches in the background and highlights personal data — names, addresses, credit cards, SSNs, API keys, and 15+ other types.
Review & Mask
Before your message is sent, a simple dialog shows what was detected. Critical data is auto-protected. You choose what else to mask.
- Credit card: 4111 ****
- API key: sk-abc***
- Name: Sarah Johnson
- Address: 42 Elm Street
AI Gets Placeholders
The AI sees [PERSON_A] instead of your real name. When it responds, PrivacyShield swaps placeholders back so you see your real data — seamlessly.
Hi, [PERSON_A] lives at [ADDRESS_1].
Hi, Sarah Johnson lives at 42 Elm Street.
15+ Types of Personal Data, Caught Automatically
PrivacyShield classifies every detection by risk level so you always know what's critical and what's optional.
Always masked — no choice needed
Detected and flagged — your call
Missed something? Right-click any text → ‘Mask with PrivacyShield’ to catch what automation misses. Teach it your name, and it remembers.
We Can't See Your Data. By Design.
PrivacyShield is built on a simple principle: the safest server is no server. Your data stays on your device, encrypted, and under your control.
100% Local Processing
Everything runs in your browser. We don't have servers. We don't collect data. There's nothing to breach.
AES-256 Encryption
Mapping data is encrypted with military-grade encryption. Keys live only in memory — lost when you close the browser.
Auto-Expiring Data
Encrypted mappings expire after 4 hours. Or click one button to wipe everything instantly.
No Analytics, No Tracking
Zero third-party scripts. Zero telemetry. Zero cookies. We don't know who you are — and we like it that way.
Free Forever. Pro When You're Ready.
Start protecting your data for free. Upgrade when you want automation and advanced features.
| Feature | Free $0 forever | ProSoon $4.99/mo |
|---|---|---|
| Detect 15+ PII types | ✅ | ✅ |
| Auto-mask critical data | ✅ | ✅ |
| Mask soft data | Manual per item | Fully automatic |
| ChatGPT + Claude | ✅ | ✅ |
| Response unmasking | ✅ | ✅ |
| Right-click mask | ✅ | ✅ |
| Personal dictionary | ✅ | ✅ |
| Smart masking strategies | — | ✅ |
| Privacy dashboard | — | ✅ |
| Gemini, Perplexity + more | — | ✅ |
| Per-site rules | — | ✅ |
Free forever
- Detect 15+ PII types
- Auto-mask critical data
- ChatGPT + Claude
- Response unmasking
- Right-click mask
- Personal dictionary
per month
- Everything in Free
- Fully automatic soft-PII masking
- Smart masking strategies
- Privacy dashboard
- Gemini, Perplexity + more
- Per-site rules
Pro launching soon — $4.99/month