PixelHush

Auto-blur sensitive data on web pages during screen recording

PixelHush — Auto-blur sensitive data during screen recording Stop leaking API keys, passwords, and tokens on stream. PixelHush automatically detects when you start recording your screen and instantly blurs sensitive data on any web page — no manual action required. When you stop recording, everything returns to normal. How it works The extension uses the Screen Capture API to detect when screen recording begins. At that moment, it scans visible page content and applies a blur overlay over any text matching known sensitive patterns — API keys, JWT tokens, passwords, secret keys, environment variables, and more. Your data is never sent anywhere. All processing happens locally in your browser. What gets protected - API keys and secret tokens (AWS, OpenAI, Stripe, GitHub, and 50+ services) - JWT tokens and Bearer credentials - Database connection strings - Private keys and certificates - Environment variable values (.env format) - Passwords in plain text - Credit card numbers and personal identifiers Who it's for - Developers recording tutorials or technical demos - DevRel and tech educators streaming live coding sessions - Engineers doing pair programming or code reviews on video calls - Anyone who shares their screen and works with sensitive data Privacy PixelHush works entirely offline. No data leaves your browser. No accounts required. The extension reads page content only to detect sensitive patterns — it never stores, transmits, or logs anything. Pair with the PixelHush macOS app For developers using VS Code or Cursor, the PixelHush macOS app extends protection into your code editor — automatically masking secrets in open files the moment screen recording starts, without changing the actual file content.