How to Blur Part of Your Screen While Sharing (2026)
Blur sensitive fields inside a browser page before sharing in Meet, Zoom or Teams. Practice with sample data and learn what a browser extension cannot hide.
Direct answer
To blur part of a webpage while sharing, install a browser blur extension, enable element selection and select the sensitive fields before presenting. Check the output, then share only that tab or window. ContextBlur does not blur native desktop apps, the address bar or other browser tabs.
Step-by-step
- 1Choose a tab or window containing only the content you intend to present.
- 2Enable element selection in your blur extension and select the sensitive fields.
- 3Refresh, scroll and resize to check that the intended content stays hidden.
- 4Inspect a private test share on a second device before using real customer data.
You are about to present a dashboard, but a customer email and contract value sit next to the chart you need. Sharing a single tab hides your other tabs; it does not hide those fields inside the shared page.
Start with the share surface. If the unwanted information is in another window or tab, narrow what you share instead of adding a tool. Use blur when the information is inside the same webpage as the content you want to show.
First decide what needs hiding
| Where the information appears | Start here |
|---|---|
| Another tab or application | Share a specific tab or prepared window, not the full desktop |
| Inside a browser dashboard | Try element-level blur on the fields you need hidden |
| Address bar, bookmarks or tab strip | Use tab sharing where available, or a clean window/profile |
| Inside a native desktop app | Use sanitized data or a tool for that capture workflow; the browser extension cannot modify it |
| System notifications | Configure notification settings separately |
Google Meet documents tab, window and entire-screen sharing. Availability and controls differ by platform and client; verify what your share picker offers. Our tab-sharing guide covers browser preparation.
Try the workflow on harmless data first
Install ContextBlur from the store for your browser. Open its toolbar panel, enable element selection and select the sample email below. The sample is not an extension simulation and contains no real customer information.
Sample data only
Try one blur before your next demo
Already installed ContextBlur? Open its toolbar panel, enable selection mode, then select the sample email below. This page does not simulate the extension or automatically hide anything.
Fictional customer
Example Studio
alex@example.com
Sample contract value
$12,000
Keep this label visible; hide only what you select.
- Check the selected email is unreadable and the other content is still visible.
- Refresh, scroll and resize. Verify the rule still covers the intended content.
- In a private test call, inspect the shared output on a second device before using real data.
We do not detect whether you installed the extension or completed a blur. This is a practice page, not a security test or a customer case study. Browser blur does not remove the underlying data.
If the panel does not open, check that the extension is enabled and has access to the page. Browser settings, extension stores and other restricted pages may not allow a content extension to run. Installation does not mean it can change every page.
If selection covers too much, undo it and choose a smaller element. A visual picker targets page structure: selecting one cell does not necessarily hide the whole column. Check every visible copy of a sensitive value, including sidebars and detail panels.
Prepare a real browser demo
1. Use a sandbox or sanitized account where possible
Remove unnecessary records before thinking about blur. A demo with synthetic data is easier to share safely than a live account containing production credentials. Never paste a real API key into a demo to prove masking works.
2. Select the elements, then test navigation
Apply manual blurs before the call. Scroll to the bottom, open the panels you plan to demonstrate and check the responsive layout. A duplicate field may appear somewhere else even when the original is hidden.
3. Check the receiving side
Start a private test call and inspect the shared output on a second device. Confirm that the chart remains readable while the selected fields do not. Refresh once and inspect the transition. Saved rules reduce preparation; they are not a guarantee against brief exposure or changed page structure.
4. Present only the prepared surface
Choose the tab or window you tested. Avoid opening unprepared pages during the demo. If you need to reveal a value for your own reference, stop sharing first, then prepare and check the page again before resuming.
When is Free enough, and when does Pro help?
ContextBlur Free includes five manual blurs per session with persistence across refreshes. If that covers the fields you show, stay on Free.
Pro adds unlimited blur and user-triggered sensitive-text detection. Consider it if your workflow needs more selections or detection saves repeated work. Pattern detection cannot understand every kind of confidential information: review its results.
The current price is $15/year or $1.50/month. Already installed? Open the extension and choose Upgrade to Pro. Billing and license checks use ExtensionPay, separately from local processing of page contents. Opening this website's pricing page does not activate Pro.
For recurring CRM walkthroughs, see the sales-demo workflow. For feature boundaries, review features. If you are still choosing a tool, use the extension comparison and test checklist.
What blur does not protect
A CSS blur changes appearance; it does not delete the underlying data or change access permissions. Do not treat a blurred page as a safely redacted file to distribute. A browser extension cannot mask your entire operating system or replace notification controls.
Use the smallest useful share surface, prepare it before the meeting, and verify what the audience receives. If the content is too sensitive to risk a missed field, use a sanitized demo rather than relying on stronger blur alone.
Before your next demo
Try one field free. Pay only for the workflow you need.
Sharing one tab may solve the problem without an extension. If sensitive details remain inside the webpage, test a manual blur with sample data first.
- +Free includes up to 5 manual blurs per session; repeat use alone does not require Pro.
- +Compare Pro if you need more blurs, automatic detection or reusable profiles.
- +Check the shared output before each demo. Blur is not access control or permanent redaction.
Choose the free browser extension, then try the sample dashboard before using real customer data.
No account. Local processing. Manual blur stays free.
Start free. Upgrade inside the extension only if you need the additional Pro capabilities.
FAQ
Can I blur only part of my screen?
For content inside a webpage, a browser extension can blur selected elements while keeping the rest visible. Native desktop apps and browser chrome require a different approach.
Can I blur part of a webpage for free?
ContextBlur Free includes five manual blurs per session and persistent blurs across refreshes. You only need Pro if its additional features solve your task.
Does camera background blur hide my shared page?
No. A background effect applies to your camera image, not the contents of the webpage being shared. Prepare that separately.
Does saved blur guarantee that information stays hidden?
No. Site updates, newly rendered elements and responsive layouts can expose content. Verify the shared output and use sanitized demo data for sensitive workflows.