Gaze Guard

# Gaze Guard Protect your screen privacy from shoulder surfers. Gaze Guard is a privacy protection extension that helps prevent people from viewing sensitive information on your screen. Using your webcam, it detects when someone is looking at your display and immediately alerts you. Whether you're working in a café, coworking space, airport, train, library, classroom, or open office, Gaze Guard provides an extra layer of visual privacy and screen privacy protection when handling confidential information. When an additional person appears near your screen, Gaze Guard can flash a visual warning, automatically switch to a safe tab, or do both. This helps protect emails, documents, financial data, source code, passwords, customer information, and other private content from shoulder surfing. Unlike cloud-based monitoring tools, all face detection runs locally on your device. No images are uploaded, stored, shared, or processed remotely. Gaze Guard is designed for anyone who values privacy while working in public or shared environments. --- ## ★ Why Gaze Guard Have you ever: • Felt someone standing behind you while working in a coffee shop? • Been reviewing confidential documents in a public place? • Handled payroll, contracts, customer data, or private messages on your laptop? • Worked remotely from home and wanted extra privacy from roommates or family members? • Caught yourself repeatedly checking whether someone was looking at your screen? Gaze Guard acts as an extra set of eyes, helping you stay aware of your surroundings without constantly looking over your shoulder. --- ## ★ How It Works 1. Gaze Guard uses your webcam to detect faces near your screen. 2. When an additional face appears within your configured distance threshold, Gaze Guard triggers an alert. 3. Optionally, it can automatically switch to a safe tab of your choice. All processing happens locally on your device. --- ## ★ No Cloud. No Tracking. No Uploads. Privacy is the entire reason Gaze Guard exists Unlike many AI-powered tools, Gaze Guard performs all face detection locally in your browser. • No cloud processing • No analytics tracking • No user accounts • No image uploads • No data collection • No network requests during runtime Your webcam frames never leave your computer. --- ## ★ 100% Local Processing • All face detection runs locally using Google's MediaPipe Face Landmarker • Webcam frames are processed in real time and are never stored • No screenshots, photos, or recordings are saved • The machine-learning model and WASM runtime are bundled with the extension • The extension operates entirely offline after installation --- ## ★ Features ### Smart Detection • Distance threshold — trigger only when an additional face is within a configurable distance (40–150 cm) • Adjustable head-angle tolerance for improved detection accuracy ### Alert Actions • Visual alert only • Auto-switch tab only • Visual alert + auto-switch tab ### Visual Modes • Sweeping border glow around the page • Face-position marker showing where the person was detected ### Customization • Custom alert color • Adjustable alert duration • Configurable cooldown period • Flexible sensitivity settings ### International Support • Supports 8 languages • Automatically follows your Chrome UI language • Manual language selection available ### Modern Chrome Architecture • Built with Manifest V3 • Uses Chrome's Offscreen Document API for background webcam processing --- ## ★ Perfect For • Remote workers • Software developers • Freelancers • Financial professionals • HR teams • Legal professionals • Students studying in public spaces • Anyone working with sensitive information --- ## ★ Open Source Gaze Guard is fully open source. Inspect the source code, review how webcam access is handled, and verify that no data leaves your device. GitHub: https://github.com/steepinglogic/gaze-guard --- ## ★ Privacy Policy https://steepinglogic.github.io/gaze-guard/privacy --- ## ★ Third-Party Licenses This extension uses MediaPipe Tasks Vision and the MediaPipe Face Landmarker model, both licensed under Apache 2.0. License information: https://github.com/steepinglogic/gaze-guard/blob/main/NOTICE.md --- ## ★ Feedback & Bug Reports Found a bug or have a feature request? Please open an issue on GitHub and help improve Gaze Guard. https://github.com/steepinglogic/gaze-guard/issues