Local Privacy Protection
Process and mask sensitive information locally in your browser before sharing with AI services.
Protect your sensitive data before sharing with AI. 100% browser-based, zero data storage.
Start Using - It's FreeDear [NAME_1], I'm [NAME_2] from [ORGANIZATION_1], currently earning [MONEY_1] annually. I'm writing to express my interest in the Senior Engineer position at [ORGANIZATION_2]. I previously worked with your colleague [NAME_3] at [ORGANIZATION_3] from [DATE_1]. You can reach me at [EMAIL_1] or [PHONE_1]. Best regards, [NAME_2]
I'll help you polish this email. Here's an improved version: Dear [NAME_1], I am writing to express my strong interest in the Senior Engineer position at [ORGANIZATION_2]. With my current experience at [ORGANIZATION_1] and previous collaboration with [NAME_3] at [ORGANIZATION_3], I believe I would be a valuable addition to your team. I would welcome the opportunity to discuss how my skills and experience align with your needs. Please feel free to contact me at [EMAIL_1] or [PHONE_1]. Thank you for considering my application. Best regards, [NAME_2]
Take control of your data when using AI tools. Mask sensitive information locally before sharing.
Process and mask sensitive information locally in your browser before sharing with AI services.
Automatically finds names, emails, company names, addresses, and financial data in your prompts.
Works seamlessly with English and Chinese text. Interface available in multiple languages.
Perfect for compliance with privacy regulations. No data retention means no compliance worries.
Save your masking configuration and restore it later. Perfect for team collaboration.
Send masked prompts directly to any AI chatbot or assistant with a single click.
Protect your sensitive data in 3 simple steps
Copy your AI prompt containing sensitive information
Automatically detects and masks names, emails, companies, and other sensitive data with one click
Click to send your masked prompt directly to any AI chatbot or assistant
Learn about data handling practices and how to protect your information
Many AI services retain conversation data for extended periods. Consider masking personal details for added privacy.
Many organizations have policies about sharing confidential information with external AI services. Check your company guidelines.
Like any online service, AI platforms face security challenges. Masking sensitive data adds an extra layer of protection.
Our tool helps you replace sensitive data with placeholders locally in your browser
Before: "Can you review the contract for John Smith at TechCorp Inc?"
After: "Can you review the contract for [NAME_1] at [ORGANIZATION_1]?"
Get AI help polishing emails, cover letters, and documents without exposing personal details, company names, or salary information.
Use AI to improve resumes and application letters while keeping your current employer, contacts, and references private.
Get AI insights on reports and presentations without revealing client names, deal values, or confidential metrics.
Create AI-powered content while protecting customer data, campaign budgets, and competitor information.
Draft policies and communications with AI assistance while masking employee names, salaries, and personal information.
Protect your privacy whenever you paste text into any AI assistant or chatbot.
Trusted by professionals worldwide for secure AI interactions
“This has really helped with my daily work. I feel more comfortable using AI for work tasks now that I can protect sensitive information first.”
Data Analyst
“It's nice to have a simple way to remove personal details before using AI. Saves me time from manually editing everything.”
Product Manager
“I work with confidential documents often, and this tool helps me use AI assistance while keeping client information private. Very practical.”
Legal Professional
Yes. Our text masking tool runs entirely in your browser using JavaScript. No data is sent to external servers or stored in databases. All processing happens locally on your device for enhanced privacy.
The tool can automatically detect and mask: personal names, organization names, locations/places, email addresses, phone numbers, URLs, dates, money/currency amounts, and numbers. You can also manually select any text to mask with custom categories.
Yes, the tool supports both English and Chinese (Simplified and Traditional). It uses advanced NLP (Natural Language Processing) to accurately detect entities in both languages. The interface is also available in all three language options.
Switch to "Unmask Mode" using the toggle button. Then paste your masked text (with placeholders like [NAME_1], [EMAIL_2]) into the input field. The tool will automatically replace all masked placeholders with their original values.
Join thousands using smarter privacy practices with AI tools.
Try the Privacy ToolWorks with: All Major AI Platforms • Language Models • AI Assistants