CoverGuard

Permanently cover sensitive data in images and PDFs with solid colors. Remove metadata. 100% offline.

CoverGuard permanently covers sensitive information in images and PDFs with solid colors before sharing. Perfect for security professionals, privacy advocates, and anyone handling confidential data. KEY FEATURES: 🎨 Solid color coverage (100% irreversible protection) 🎨 Customizable colors (black, white, red, or any custom color) 🖱️ Eyedropper tool - pick colors directly from image 🔒 Automatic metadata removal (EXIF, GPS, etc.) 🔍 Zoom & pan for precision 📂 Drag & drop file loading ↶ Undo/Redo functionality ⌨️ Keyboard shortcuts (Ctrl+Z, Enter, Esc) PRIVACY FIRST: All processing happens locally in your browser. Your files never leave your device. No uploads, no tracking, no data collection. PERFECT FOR: - Security researchers redacting vulnerability reports - IT professionals hiding credentials in screenshots - Healthcare workers protecting patient information (PII) - Legal professionals redacting documents - Anyone handling sensitive or confidential data SUPPORTED FORMATS: - Images: PNG, JPG, JPEG, WEBP - Documents: PDF (text and scanned) HOW TO USE: 1. Download an image or PDF 2. Extension shows notification: "Cover sensitive data?" 3. Click "Open Editor" 4. Choose your cover color 5. Drag over sensitive areas 6. Press Enter or click Save 7. Done! File saved with "_covered" suffix SMART NOTIFICATIONS: Toggle notifications on/off with one click. Auto-pause feature prevents notification fatigue. 100% SECURE: Zero external dependencies. Open source and transparent. All code available on GitLab.