ContextBlur

ContextBlur helps you hide sensitive information on webpages before screen sharing, recording a demo, or presenting live. Click any element to blur it instantly, keep it blurred across refreshes, and share real screens without exposing private or confidential details. Best for • Screen sharing with colleagues, clients, or teammates • Product demos and sales calls • Tutorials, webinars, and live recordings • Dashboards, admin tools, inboxes, CRMs, and internal systems • Hiding personal or sensitive information before presenting Key features • Click to blur any text, image, input, or page element • Persistent blur that stays after page refresh • Smart selection that avoids over-blurring the page • Keyboard shortcuts for faster workflows • Optional auto-blur for emails, phone numbers, SSNs, and credit card numbers • 100% local processing in your browser • No analytics or tracking • No data is stored or transmitted • Open source How it works 1. Open the ContextBlur side panel 2. Turn on Selection Mode 3. Click the element you want to blur 4. Refresh the page if needed — your blur stays in place Important ContextBlur is a visual privacy tool for screen sharing, demos, tutorials, recordings, and live presentations. It helps reduce accidental exposure of sensitive information, but it is not a security control.