AI Shield

Prevent accidental PII or API key leaks to any AI. A local-first firewall that masks personal data before it leaves your browser.

Prevents accidental data leaks to AI tools. Now supports Custom Domains and Custom Regex Rules. AI Shield is a "local-first" firewall that sits between your clipboard and AI websites. It automatically detects and masks sensitive data (PII, API keys, private tokens) before you paste them into chat interfaces. 🚀 NEW IN VERSION 1.1: Universal Support: Now works on ANY website. Add your own custom domains (e.g., internal-ai.company.com, localhost:3000) to the Allow List. Custom Block Rules: Define your own Regex patterns to block specific internal project codes or proprietary data formats. Incognito Mode: Toggle "Auto-Clear" to ensure your history is wiped from memory the moment you close the browser. Dark Mode: A sleek, professional new look that respects your system preferences. 🛡️ KEY FEATURES: Smart Detection: Pre-configured to block AWS keys, OpenAI keys, Stripe tokens, Email addresses, and SSNs. Interactive History: View a log of blocked secrets and copy the original text if you truly intended to paste it. Zero-Latency: The extension sleeps on non-whitelisted sites to ensure zero impact on your browsing performance. 100% Local & Private: No data ever leaves your browser. All processing happens on your device. Perfect for: Everyone who uses public or private LLMs—from developers protecting keys to general users protecting their identity.