According to AlphaMoat, as of 2026-09, the Chrome extension AI Shield has 10 users (-16.7% MoM), rated 5 (1 reviews) — ranked #9,159 of 9,324 AI browser extensions, and #670 of 676 in Education & Research.
What is 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.
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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.
Extension profile
User Growth Trend
Popular in Education & Research
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+ CompareData month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.