5 Best Chrome Extensions for Screen Sharing Privacy (2026)

Accidentally sharing the wrong thing on a call is one of those mistakes that feels small for one second and huge the next. Maybe it is a Slack DM, a private channel name, a salary note, a customer account balance, or an internal tab you forgot was still open. The more remote work becomes normal, the more this happens to managers, sales teams, recruiters, customer success reps, founders, and anyone else who lives in browser tabs all day.

That is why screen-sharing privacy extensions are so useful. They let you hide sensitive information before the meeting starts instead of relying on last-second tab juggling. Some are built for a specific app. Others work on almost any website. The best one for you depends on where your privacy risk actually shows up.

In this guide, I compared the best Chrome extensions for screen sharing privacy for everyday work use, not technical edge cases. If you mostly share Slack, one tool clearly stands out. If you jump between lots of sites, a generic blur tool may fit better.

What to Look for in a Screen-Sharing Privacy Extension

Before you install the first blur tool you see, focus on five practical criteria:

• App-specific vs. generic: A Slack-specific tool can feel much faster inside Slack, while a generic tool is better if you present from many different sites.
• Ease of use: In a real meeting, you want one click or one shortcut, not a complicated setup flow.
• Hover-to-reveal: This is underrated. It lets you keep information hidden from your audience while still quickly checking something yourself.
• Persistence: If you share the same tools repeatedly, saved blur rules can save a lot of time.
• Price: Free is great, but paid can still be worth it if you screen share constantly and need repeatable protection.

A good rule of thumb: choose the most specific tool that matches your daily workflow. If most of your screen-sharing mistakes happen in Slack, a generic extension can feel slower than something built exactly for Slack. But if you move between dashboards, spreadsheets, admin panels, and web apps all week, flexibility matters more.

1. Privacy Blur for Slack

Install from Chrome Web Store — Free forever, with Pro at $3/month

Privacy Blur for Slack is the best choice if Slack is where your risky screen-sharing moments usually happen. It is built around the parts of Slack people expose by accident: messages, names, channels, media, shortcuts, and persistence rules. That app-specific focus makes it faster than a generic blur tool when you are moving quickly in a meeting.

Its biggest strength is control without making Slack unusable. You get six independent blur zones, so you can hide exactly what matters and leave the rest of Slack readable. Hover-to-reveal is especially helpful during live calls because you can briefly inspect hidden content without turning privacy off for everyone watching. There is also an Alt+Shift+B shortcut for fast toggling and a floating draggable panel for changing settings on the fly.

Another important plus: it runs 100% client-side, which is exactly what you want when the content includes internal conversations, customer data, or sensitive team discussions.

The free version covers the core workflow. Pro adds persistence, keyword rules, and sender rules for people who want the same protections to re-apply automatically.

The real limitation is scope. This is a Slack Web-only tool. If your privacy problem happens across Gmail, dashboards, and random websites as often as it happens in Slack, one of the generic options below may be a better fit.

Best for: Teams and individuals who spend a large part of the workday screen sharing Slack.

Price: Free forever. Pro: $3/month.

2. Page Blur — Hide Sensitive Info for Screen Sharing

Chrome Web Store — Free

Page Blur is the best generic option on this list because it covers the core privacy jobs most people need without overcomplicating the experience. You can blur any element on a page, hide tab names, keep blur states persistent, adjust blur intensity, and use keyboard shortcuts. Because it works on any website, it fits people who jump between CRMs, email tools, internal dashboards, and browser tabs all day.

Its flexibility is the main reason to choose it over an app-specific product. If you need to hide a customer name on one page, a balance figure on another, and the tab title itself while sharing your whole screen, Page Blur can handle that.

The trade-off is that it stays manual. It is not optimized around one app, so it does not automatically know what is sensitive. You usually need to select the elements yourself every time, which is fine for planned presentations but adds friction when a meeting starts unexpectedly or you need to share your screen quickly without preparation time.

Best for: Remote workers who need one free privacy extension across many websites.

Price: Free.

3. Privacy Blur: Screen Privacy Tool

Chrome Web Store — Free download, optional premium

Privacy Blur: Screen Privacy Tool is the most feature-rich option in this roundup. Instead of focusing on one way to hide content, it gives you Focus Mode, Full Blur, Word Masking, Area Blur, Decoy Mode, and Smart Financial Mode. If you present lots of different kinds of content and want more than click-to-blur, that variety is a real advantage.

The biggest appeal here is range. Full Blur and Focus Mode are useful when you want to keep attention on one safe part of the screen. Word Masking helps when the same names or terms appear repeatedly. Area Blur is good for quick temporary protection, and Decoy Mode is useful for demos where you want something safer than your live page visible.

It also emphasizes local processing. But it is still a generic tool, not something tailored to one app or one workflow. The six different modes can feel overwhelming when you just want to jump on a call — you may spend more time choosing which mode to use than actually protecting content. Some advanced features are also premium-only.

Best for: People who want the broadest set of privacy modes in one extension.

Price: Free download with optional premium features.

4. BlurWeb

blurweb.app — Paid premium after trial/refund window

BlurWeb is a strong choice for people who create tutorials, onboarding videos, demos, or livestreams on a repeat basis. It lets you blur any element, draw blur over custom areas, persist blur between sessions, and adjust intensity. That combination makes it useful when you need to clean up the same product walkthrough more than once.

The standout feature is repeatability. If you regularly record the same pages or demo flows, persistent blur saves time because you do not have to rebuild your privacy setup every session. The draw-blur option also helps when what you want to hide is awkwardly placed and does not map neatly to one clickable element.

The main drawback is price and setup complexity. BlurWeb is not the best fit for someone who only occasionally presents in meetings — the manual element selection and configuration take time upfront. It makes more sense when polished recordings or repeat demos are part of your job. Like Page Blur, it is also a general tool, so you still decide manually what to hide before every session.

Best for: Trainers, tutorial creators, sales demo teams, and livestreamers.

Price: Paid premium after the trial/refund window.

5. Obscuro

GitHub — Free and open source (MIT)

Obscuro is the best option for developers and security-focused teams because it is built around rules, not just manual clicking. It can use CSS selectors and regex pattern matching to detect sensitive data such as emails, card numbers, and other text patterns, then either blur or scramble that content. It is also open source under the MIT license, which matters for teams that want transparency and control.

For the right user, Obscuro can be more powerful than a generic blur extension. If your internal dashboards, test environments, or admin tools surface the same types of sensitive values again and again, rule-based hiding can be more reliable than manually selecting elements before every call.

The catch is usability. This is not the easiest tool for non-technical users — configuring CSS selectors and regex patterns requires developer knowledge. The real value comes from setting up rules once and reusing them, but most people who just need quick meeting privacy will find this approach confusing compared to a toggle-based tool.

Best for: Developers, security teams, and technical internal demo environments.

Price: Free and open source.

Comparison Table

How to Choose the Right One

Use this simple decision flow:

• If most of your screen sharing happens in Slack: choose Privacy Blur for Slack.
• If you need one free tool that works across many websites: choose Page Blur.
• If you want advanced modes like full-screen blur, word masking, or decoy views: choose Privacy Blur: Screen Privacy Tool.
• If you record tutorials or demos repeatedly and want persistent visual cleanup: choose BlurWeb.
• If your team wants programmable, open-source privacy rules: choose Obscuro.

The biggest mistake is choosing the tool with the most features instead of the one that matches your actual workday. In practice, the best screen-sharing privacy extension is the one you can turn on in seconds before a meeting starts.

Final Take

If Slack is where your private messages, channel names, and internal chatter usually leak into meetings, Privacy Blur for Slack is the strongest fit because it solves that exact problem without making Slack hard to use.

If your screen-sharing risk is spread across lots of sites, Page Blur is the best free all-purpose choice.

Ready to make Slack safer before your next call? Install Privacy Blur for Slack and keep sensitive Slack content hidden while you share.