Protect your data against AI.
Caviard automatically detects and replaces sensitive information like full name__NAME__ before sending your text to ChatGPT and DeepSeek, ensuring privacy without sacrificing functionality.


Hi, I need advice on a financial issue. My name is James Smith__NAME__ and I live at 123 Main Street, New York__ADDRESS__. My credit card 4782-5510-3267-8901__CREDIT_CARD__ was charged twice for a subscription.
I understand your concern regarding the duplicate charge on your credit card. Let me help you resolve this issue.
Watch Caviard in action
See how Caviard protects your sensitive information in real-time
How Caviard Works
Protecting your privacy in 3 steps, all happening locally in your machine
Detection
Caviard's intelligent algorithms scan your text in real-time to identify personal and sensitive information before it's sent to AI services.
Pattern Recognition
Uses advanced regex patterns to identify various types of PII.
Multi-language Support
Works across different languages and formats to ensure comprehensive protection.
Customizable Rules
Define your own patterns for additional privacy protection.
Masking
Once detected, sensitive information is replaced with realistic substitutes that maintain context while protecting your privacy.
Context Preservation
Substitutes maintain the meaning and flow of your conversation.
Format Matching
Replacements match the format of the original data (dates remain dates, etc.)
Consistent Mapping
Same sensitive data always gets the same replacement throughout conversations.
Translation
Caviard seamlessly converts between masked and original text in both your prompts and AI responses.
Two-way Protection
Works in both your prompts and the AI's responses to maintain privacy.
Toggle Original View
Easily switch between masked and original text with a keyboard shortcut.
Local Storage
All sensitive data remains in your browser, never shared with external servers.
My name is __Joe_Miller__James Smith and I live at 123 Main Street. My credit card number is 4782-5510-3267-8901.
I'd be happy to help with your issue. Let me confirm the details: __Joe_Miller__James Smith was mentioned in your query. I'll look into this right away.
Key Benefits
Protect your sensitive information while maintaining the full power of AI assistants.
Intelligent Detection
Caviard automatically identifies sensitive information in your text before it reaches any AI service, protecting your data with zero configuration required.
Real-time Detection
Instantly identifies PII as you type or paste content without causing delays.
Comprehensive Coverage
Protects names, addresses, phone numbers, credit cards, emails, and more.
Context-Aware Analysis
Intelligently recognizes PII across various formats and conversational contexts.
Seamless Masking
Your sensitive information is replaced with consistent placeholders that maintain context while ensuring your private data never reaches AI models.
Format-Preserving Substitution
Maintains the structure and flow of your text for natural AI responses.
One-Click Toggle
Instantly switch between masked and original text with Alt+R shortcut.
Consistent Replacements
The same sensitive data always receives identical placeholders throughout conversations.
100% Local Processing
Your sensitive data never leaves your browser. All detection and masking happens locally, giving you complete control over your privacy.
Browser-Only Technology
All processing happens locally - no data is sent to our servers.
Zero External Transmission
Your original sensitive information is never stored or shared with third parties.
Automatic Security Cleanup
Stored masks are automatically purged after 7 days for enhanced protection.
100+
Different types of personally identifiable information (PII) protected by our detection algorithms.
50K+
Users protecting their privacy with Caviard when using ChatGPT and other AI services.
0ms
Latency added to your AI experience - all the processing is lightning-fast and completely local.
What Our Users Say
Join thousands of users who trust Caviard for their private AI conversations

Michael Chen
Director
"Caviard.ai has completely changed how I interact with AI. I can now get the benefits of ChatGPT without worrying about the data being used for training or stored on their servers."

Sarah Johnson
Healthcare Professional
"As someone who frequently shares sensitive data, Caviard.ai gives me peace of mind knowing patient details are automatically masked when using ChatGPT. It's an essential tool."

Anna Rodriguez
Executive Assistant
"I love how Caviard.ai works seamlessly in the background. I barely notice it's there, but it's protecting my information while working with ChatGPT for my clients."
Frequently Asked Questions
Find answers to common questions about Caviard
FAQ'S