BlurShield - Privacy & Content Masker

Permanently blur or redact sensitive text, elements, and images across page refreshes with smart persistence.

🛡️ Protect sensitive information, hide private data, and share your screen with complete confidence. BlurShield is a lightweight, high-performance privacy extension designed for content creators, remote presenters, developers, streamers, and privacy-conscious professionals. Instantly blur images, cards, balances, emails, account numbers, and sensitive text on any webpage—with permanent, reload-proof protection. Unlike standard screen-blurring tools that break on page reload, BlurShield uses a Zero-FOUC (Zero Flash of Unstyled Content) engine that injects your privacy rules before the browser even paints the frame. Never risk accidental data leaks during live demos, screen recordings, or meetings again! ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✨ KEY FEATURES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔲 1. Visual Element Picker (Gaussian Blur) • Point-and-click visual inspector: Click any section, table, profile card, or image to mask it instantly. • Adjustable Blur Intensity: Fine-tune blur radius from subtle (3px) to heavy redaction (25px) with live preview. • Smart Dynamic-Class Sanitizer: Works flawlessly on modern web apps (React, Next.js, Tailwind, styled-components) by automatically cleaning dynamic hash selectors for robust persistence. 🔤 2. Phrase & Text Redaction • 1-to-1 Character Masking: Automatically replace specified names, emails, API keys, or balances with your choice of symbol (*, #, $, or custom). • Adaptive Contrast: Automatically renders legible masked text across both dark and light web themes. • Clean Inline Styling: Seamless masking that preserves page layout without clunky badges or visual clutter. 👁️ 3. Quick Hover-to-Reveal • Need to peek at the underlying data? Simply hover over any blurred element or phrase to temporarily reveal it. ⚡ 4. Zero-FOUC Pre-Paint Injection • Rules apply at `document_start` so target elements are masked before the page renders—guaranteeing 100% leak-proof page refreshes during screen shares and recordings. 📋 5. Rule Manager & JSON Sync • Site Dashboard: View, locate (🔍), or delete (🗑️) active masks per website. • Backup & Restore: Export and import your masking rules as JSON to sync across machines or share privacy templates with teammates. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🎯 PERFECT FOR ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ • 🎥 Content Creators & YouTubers: Record tutorials and walkthroughs without revealing sensitive keys, emails, or credentials. • 💼 Remote Presenters & Sales Teams: Demo live dashboards and CRMs safely during client Zoom, Teams, or Google Meet calls. • 💻 Developers & QA Engineers: Share bug reproduction recordings without exposing production tokens or user PII. • 📸 Screenshot Sharing: Redact private info before capturing and sharing images. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⌨️ KEYBOARD SHORTCUTS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ • Alt + Shift + B (Mac: Option + Shift + B) ➔ Toggle Visual Element Picker ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔒 PRIVACY-FIRST PROMISE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Your data never leaves your browser: ✔ 100% Local Execution — runs entirely on your device. ✔ Zero Tracking & Zero Telemetry — no analytics, no external servers, no logging. ✔ Manifest V3 compliant — fast, lightweight, and battery-friendly. Take back control of your privacy while browsing, recording, and presenting with BlurShield!