To blur WhatsApp Web, install a blur extension such as WBlur, which is free for Chrome, Firefox, Edge, Brave, Opera and Arc. WhatsApp Web has no built-in blur: its own options can lock the page or hide notifications, but not blur your chats while you use them. A blur extension keeps messages, previews, photos and names blurred until you point at them.
Below are the three practical ways to keep WhatsApp Web private on screen, what each one protects, and how to set up the blur in under a minute.
1. WhatsApp Web's own settings
WhatsApp Web has a screen lock in its privacy settings that asks for a password after a period of inactivity, and you can turn off desktop notification previews in its notification settings. Both help when you walk away, but neither does anything while you're sitting in front of it: once the page is unlocked, every chat, preview and photo is readable to anyone who can see your screen.
2. A privacy screen filter
A privacy filter is a polarized sheet you stick or clip onto your screen. It darkens the screen for anyone looking from the side, which helps on a train or in a café. It does nothing for someone standing behind you, nothing in a screen share, and it darkens everything on your screen, not just WhatsApp.
3. A blur extension
A blur extension changes how WhatsApp Web is drawn in your browser. With WBlur, each message, preview, photo, name and profile picture is blurred, and the one under your mouse becomes readable while you point at it. It works from every angle, shows up blurred in screen shares and recordings, and only covers WhatsApp, so the rest of your screen stays normal.
WBlur only has access to web.whatsapp.com and never collects or sends your messages or any other data. Alt+X turns it on or off, Alt+Z shows everything for a moment, and you can choose exactly what gets blurred.
The three ways to keep WhatsApp Web private on screen
| WhatsApp Web settings | Privacy filter | WBlur extension | |
|---|---|---|---|
| Hides chats while you use them | No | From the side only | Yes, from every angle |
| Blurred in screen shares | No | No | Yes |
| Locks when you step away | Yes, screen lock | No | Yes, PIN lock |
| Affects the rest of your screen | No | Yes, darker | No |
| Cost | Free | Paid | Free |
Guide
In short
- 01WhatsApp Web has no built-in blur
- 02Its screen lock only helps when you walk away
- 03A privacy filter only helps against people at your side
- 04A blur extension hides chats from every angle and in screen shares
- 05WBlur is free and works in Chrome, Firefox, Edge, Brave, Opera and Arc
How to set it up
- 1Add WBlur to your browser from the Chrome Web Store or Firefox Add-ons.
- 2Open web.whatsapp.com and sign in as usual. Your chats are blurred right away.
- 3Hover over a message, a photo or a chat to read it. Move the mouse away and it blurs again.
- 4Click the WBlur icon to choose what gets blurred, set a PIN lock or a schedule, or press Alt+X to turn it on or off.
Get WBlur
Chrome
FreeBlurs WhatsApp Web in Chrome, Edge, Brave, Opera and Arc.
Add to ChromeNo account neededMac
Free for 7 daysBlurs the WhatsApp app on your Mac, and locks it with Touch ID. Lives in your menu bar.
Download free trialThen $9 once: buy a license keyFAQ
Questions, answered.
Can I blur WhatsApp Web without an extension?
Not in a practical way. WhatsApp Web has no blur setting, and changing the page yourself with developer tools resets every time it reloads. An extension does the same thing automatically, every time.
Is it safe to use a WhatsApp Web blur extension?
Check what it can access. WBlur only runs on web.whatsapp.com and collects no data, which you can see in its store listing. Avoid extensions that ask to read every website.
Does blurring WhatsApp Web work on Windows?
Yes. A browser extension works on any computer that runs the browser: Windows, macOS, Linux or ChromeOS.
Is WBlur free?
The browser extension for Chrome, Firefox, Edge, Brave, Opera and Arc is free. The Mac app is free for 7 days, then a one-time $9 license key for up to 3 Macs, with a 30-day refund if it's not for you.
Does WBlur read or collect my messages?
No. WBlur only changes how WhatsApp looks on your screen. It does not read, store or send your messages, contacts or any information about you.
Can the other person tell that I use WBlur?
No. WBlur only blurs what is shown on your own screen. Nothing changes in WhatsApp itself, and read receipts work exactly as before.