Features
Blur the exact part of the screen you need to hide
ContextBlur is built for the real screen-sharing problem: live demos, support calls, recruiting screens, and recordings where one visible customer name, tab title, or internal note is enough to break trust.
What the product actually does
- +Blur the exact field, sidebar, badge, or widget you do not want visible.
- +Keep blurs across refreshes so recurring workflows stay demo-safe.
- +Upgrade only when unlimited blur and automation save you time every week.
Install the browser version that matches the machine you are using right now.
No account. Local processing. Manual blur stays free.
Start free on ContextBlur. If it becomes part of your weekly demos or recordings, unlock Pro inside the extension for unlimited blurs and automation.
Click-to-blur
Activate blur mode, then click any element on the page. Text, images, form fields, notifications — anything you can see, you can blur. The extension uses smart targeting to select the right element: it prioritizes inputs, images, and inline text so you blur exactly what you intended.
- Smart element targeting avoids over-blurring large containers
- Visual highlight on hover shows what will be blurred
- Custom cursor indicates blur mode is active
- Blur effect applies instantly with a smooth animation
Persistent blurs
Once you blur an element, it stays blurred — even after page refresh, browser restart, or navigating away and back. ContextBlur stores CSS selectors in your browser's local storage, keyed by URL. When you revisit a page, your blurs are automatically restored.
- Survives page refreshes and browser restarts
- CSS selectors stored locally, keyed by URL
- Clear individual blurs or all blurs with one click
- Saved blur rules stay in your browser
Auto-blur sensitive data
One click to scan the current page and automatically blur any detected sensitive information. The auto-blur feature uses local regex patterns to find and mask emails, phone numbers, Social Security numbers, Swedish personnummer, and credit card numbers.
- Detects emails, phone numbers, SSN, credit cards, and personnummer
- Scans only visible text — skips hidden and script elements
- Only runs when you explicitly click the button
- First-use disclosure ensures you understand what it does
Keyboard shortcuts
Toggle blur mode instantly with keyboard shortcuts. Press Ctrl+Shift+B (or Cmd+Shift+B on Mac) to activate, and Esc to deactivate. Fast enough for live situations where reaching for the mouse isn't practical.
- Ctrl+Shift+B / Cmd+Shift+B to toggle blur mode
- Esc to deactivate blur mode
- Works from any tab without opening the extension
- No conflict with common browser shortcuts
Page content stays local
Blur and sensitive-text detection run in your browser, without uploading page content. Pro billing and license checks use ExtensionPay and require a network connection. The public website uses separate aggregate analytics.
- No page-content uploads for blur or detection
- Website analytics do not run on the pages you blur
- Payment requests are separate from page processing
- Open-source codebase you can audit yourself
For browser-based workflows
Use element-level blur on supported webpages such as dashboards, inboxes and admin tools. Browser-internal pages and extension stores restrict extension access. Test your exact page and sharing method before presenting.
- Designed for webpage content, not native desktop apps
- Does not hide browser tabs, the address bar or OS notifications
- Recheck coverage after dynamic content or layout changes
- Use fictional data for the first test
Use Free if you share occasionally
Best for one-off calls, quick interviews, internal walkthroughs, and situations where 5 blurs per session already covers the risky parts.
Install free firstUse Pro if screen sharing is part of your job
Best for sales demos, support escalations, recruiting screens, and repeat workflows where the same risky UI appears every week.
See when Pro pays offUse the sales-demo workflow for highest-value calls
If one exposed customer name or revenue figure can kill trust, standardize the workflow before your next live demo.
See the sales-demo setup