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Stop AI Data Leaks at the Source-Your Browser.

Secure browser extension to block sensitive data in real-time before it reaches ChatGPT, Claude or 18+ other AI tools.

Free up to 10 seats for 2 weeks • No credit card required

18+ AI Platforms
150+ Data Types
PromptShield Security Demo
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Core Features

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Browser Extension Protection

Monitors your AI inputs in real-time before they're sent to any platform.

Security Shield

PromptShield-Powered Detection

Detects 150+ types of sensitive data with enterprise-grade accuracy.

File Protection

File Protection

Scans uploaded documents and images for sensitive data before AI processing.

Smart Blocking

Smart Blocking

Blocks risky content while allowing business-justified overrides.

Enterprise Controls

Enterprise Controls

Complete admin REST API with audit trails and compliance reporting.

Real-Time Processing

Real-Time Processing

Instant analysis with sub-second response times.

Security Alerts

Security Alerts & Webhooks

Real-time notifications via Slack, SIEM, or custom webhooks.

AI Platform Support

Contextual AI Platform Support

Works seamlessly with 18+ AI platforms including ChatGPT and Claude.

Enterprise Deployment

Enterprise Deployment in Seconds

Deploy instantly via enterprise managed Chrome across your entire organization.

Lewie - Founder & CEO of PromptShield

"Built by a Security Engineer Who's Been in Your Shoes"

Meet Lewie — Founder & CEO of PromptShield

With over 15 years of leadership in information security and enterprise product development, Lewie drives innovation at the intersection of safety and scale. As a founder and strategic operator, he builds solutions that proactively defend against threats, safeguard sensitive data, and empower organizations to move faster with confidence. His approach blends deep technical fluency with a bias for action—delivering outcomes that matter to security teams, stakeholders, and the bottom line.

Simple, Transparent Pricing

Choose the plan that fits your organization

Free Trial

$0/2 weeks

Perfect for testing and evaluation

Up to 10 Users

Small

$2/user/month

Perfect for small teams

Up to 10 Users

Medium

$2/user/month

Growing businesses

Up to 100 Users

Large

Enterprise

Enterprise organizations

101-1,000 Users
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Global

Enterprise+

Global enterprises

1,000+ Users
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