Privacy Shield - Hide & Blur Sensitive Info, by Yusuf Abdelfattah Shawky, protects personal and client data during screen sharing and recordings. The Chrome extension blurs selected webpage elements, automatically detects and hides currency and balance values, and offers a visual selector for precise masking with optional hover-to-reveal. It injects CSS early to avoid on-screen flashes, supports modern single-page dashboards, and targets content creators, streamers, remote workers, and developers who need controlled, in-browser obfuscation during presentations.

What the extension is built to do for live sharing and demos

Privacy Shield focuses on selective, on-screen obfuscation for presentations, screen shares, and recordings. The extension provides a Visual Element Selector so users can click any page component to blur it, and it also offers automatic detection of worldwide currency and balance values. That combination makes it practical for presenters who want immediate masking of account numbers, emails, API keys, and profile images without editing source pages.

How it handles dynamic pages and prevents data flashing

The tool injects CSS before content renders using a Zero Flicker approach, so sensitive figures do not flash during page transitions. It includes observers tuned for SPA frameworks such as React and Vue, which capture values that appear via AJAX. This design keeps masking active as dashboards update, reducing the chance that a transient element appears briefly during navigation or asynchronous loads.

How the extension treats privacy and on-device processing

Privacy Shield processes everything inside the browser, with no external API calls and no data collection, which keeps masking actions local to the user’s machine. The extension also supports custom whitelists and exclusions so trusted sites remain unmodified, and it offers hover-to-reveal for controlled temporary exposure. That architecture suits workflows where avoiding third-party processing is a priority.

Practical choice for on-the-fly privacy during presentations

Privacy Shield is a practical option for presenters and developers who need fast, in-browser control over visible secrets during live sessions; its approach emphasizes local control and selective masking. Expect a focused browser-based workflow rather than enterprise-scale automated redaction. A useful preparatory step is to practice element selection and the global toggle before going live, to avoid adjustments while sharing a screen.