WhatsApp Web lets you read and send messages from your computer, which is far faster than typing on a phone when you are working, replying to customers, or sharing files. Every login starts with a QR code, and that small square is also where most problems begin: it won’t load, it won’t scan, or it expires before you can raise your phone.

This guide covers everything about the WhatsApp Web QR code. You will learn how to scan it on Android and iPhone, how to log in without a QR code, how to use WhatsApp Web on a phone or tablet, ten fixes for scanning errors, and the security habits that keep your account safe.

What is the WhatsApp Web QR code?

To log in, open web.whatsapp.com on your computer, then on your phone go to Linked Devices, tap Link a Device, and scan the QR code on the screen. No camera or the scan fails? Choose “Link with phone number” and type the 8-character code on your phone.

The QR code is a pairing code that links your browser to your WhatsApp account. It refreshes about every 20 seconds, and if you don’t scan within roughly two minutes, you must reload it. Your phone and computer both need internet, but they don’t have to share a network. Use WhatsApp’s own scanner: your camera app or a third-party QR scanner will not connect the session.

How the WhatsApp Web QR code works

When you open web.whatsapp.com, your browser shows a QR code that is unique to that session. Scanning it from the Linked Devices screen tells WhatsApp that this browser belongs to you, and your chats then appear on the computer. Think of it as a one-time handshake between your phone and the browser, not a password you can reuse.

Because the code is tied to a live session, it expires fast and is replaced by a fresh one. That is why a screenshot or a forwarded photo of the code never works, and why you should never share it. Both WhatsApp Web and the WhatsApp Desktop app support QR login and phone number login, and both work with WhatsApp’s multi-device design, where each computer you link shows up as a separate entry in Linked Devices.

The QR method is the default because it is quick: one scan and you are in. The phone number method exists as a backup for cases where scanning is awkward, such as a cracked camera, a screen glare problem, or a code that refuses to load.

If you run a business, the same QR login works for the WhatsApp Business app, so you can use it on WhatsApp Web too. The official WhatsApp Business API is a different product that connects through Meta and does not use a QR code to link a browser. Tools that promise a “WhatsApp Business API” through a QR scan usually work through WhatsApp Web instead, so check that a tool is the official WhatsApp Business API before you trust it with customer chats.

How to scan the WhatsApp Web QR code

Have your phone in hand before you open the page, because the code starts its countdown as soon as it loads.

On Android

1. On your computer, go to web.whatsapp.com and wait for the QR code.
2. Open WhatsApp (or WhatsApp Business) on your phone and tap the three dots at the top right.
3. Tap Linked Devices, then Link a Device.
4. Confirm with your fingerprint, PIN, or pattern if the phone asks.
5. Point the camera at the QR code so the whole square is inside the frame.
6. Wait a few seconds. Your chats load in the browser.

On iPhone

1. Open web.whatsapp.com on your computer.
2. Open WhatsApp and tap Settings in the bottom bar.
3. Tap Linked Devices, then Link a Device.
4. Confirm with Face ID, Touch ID, or your passcode if prompted.
5. Scan the QR code on the computer screen.

Tips for a clean scan

• Raise your screen brightness and zoom the browser in so the code is larger.
• Hold the phone steady and wipe the camera lens.
• Don’t cover any corner of the code, and avoid dim light.
• If the code expires, click the reload icon and scan the new one straight away.

How to log in to WhatsApp Web without scanning a QR code

You can skip the scan with the “Link with phone number” option, which WhatsApp added in 2023. It helps when your phone camera is broken, the code won’t scan, or the QR code won’t load.

1. Open web.whatsapp.com and click “Link with phone number” below the QR code.
2. Select your country and enter the phone number of your WhatsApp account.
3. Click Next. The page shows an 8-character code.
4. On your phone, open Linked Devices, tap Link a Device, then tap “Link with phone number instead”.
5. Type the 8-character code and confirm with your fingerprint, face unlock, or PIN.

If you don’t see the option, update WhatsApp on your phone and your browser. Older versions can hide it, and some sources report it isn’t available in every country or browser.

How to use WhatsApp Web on a phone or tablet

You may want WhatsApp Web on a second phone or a tablet, where there is no desktop screen to show a second device’s code. There are two common ways to do it.

Open WhatsApp Web in a mobile browser

1. On the second phone or tablet, open web.whatsapp.com in a browser such as Chrome.
2. Open the browser menu and choose “Desktop site” so the QR code appears.
3. On your main phone, open Linked Devices, tap Link a Device, and scan the code shown on the second device.

Because one screen shows the code and the other scans it, you need two devices. A screenshot of the code will not work.

Link a second phone as a companion device

When the new phone’s WhatsApp asks for a phone number, tap the three dots at the top right and choose “Link as companion device”. A QR code appears on that phone. On your primary phone, go to Linked Devices, tap Link a Device, and scan it. Availability depends on your WhatsApp version, so update the app if you don’t see the option.

WhatsApp Web QR code not loading or not scanning: 10 fixes

A slow connection, browser problems, extensions, and a blocked scanner are the usual causes. Work through these in order.

1. Reload the code. Click the reload icon on the QR code, or refresh the page, then scan within seconds.
2. Check both connections. Your phone and computer both need internet. If Wi-Fi fails, try mobile data on the phone.
3. Use WhatsApp’s scanner. Scan from Linked Devices, not from the camera app or a third-party QR app.
4. Improve the scan. Clean the camera lens, raise screen brightness, zoom the page in, and keep the whole code visible.
5. Turn off ad blockers and extensions. Test in an incognito or private window. If the code appears there, re-enable extensions one by one to find the culprit.
6. Turn off VPN or proxy. WhatsApp Web isn’t tuned for them, and disabling them has fixed the code not loading for some Windows users.
7. Clear the browser cache and cookies. Stale site data can stop the code from rendering.
8. Update your browser and WhatsApp. Install the latest version of each, restart the browser, and try again. Switching to another browser also helps.
9. Try another phone or restart. Restart your phone and computer, or scan with a different phone to rule out a device fault.
10. Use the phone number code. Choose “Link with phone number” and enter the 8-character code instead.

If nothing works, check an outage tracker such as Downdetector and contact WhatsApp Support through the app, listing the steps you tried. A number banned for spam or bulk messaging can’t log in by any method.

Advanced fixes if the basics fail

When the ten steps above don’t help, these deeper checks solve many stubborn cases:

• Turn off hardware acceleration in your browser settings, then restart the browser. It can stop the code from rendering on some computers.
• Switch dark mode off. Dark mode has been linked to QR display problems for some users. Open the settings (cogwheel) in WhatsApp Web and go back to light mode.
• Change your DNS. If a connection problem blocks the code, switching to a public DNS such as Google DNS can help.
• Reinstall the desktop app. If you use WhatsApp Desktop, force quit it, reinstall it, and relaunch. Or skip the app and use WhatsApp Web in a browser.
• Check the phone side. Update WhatsApp from the App Store or Google Play, restart the phone, and make sure the camera is clear and the code is fully visible in the frame.

The pattern is simple: change one thing at a time, then reload the code. That way you learn which setting caused the problem.

Is the WhatsApp Web QR code safe? Security tips

Scanning is safe when you do it on the real site, and risky when someone else controls the screen. Follow these rules:

• Only scan a code shown at web.whatsapp.com or in the official desktop app. Never scan a code a stranger sends you in a chat or an email. It can link their device to your account.
• On a shared or public computer, log out when you finish.
• Open Linked Devices on your phone now and then, and log out any device you don’t recognize.
• Keep WhatsApp and your browser updated, and avoid unknown browser extensions on the page.

WhatsApp Web QR code FAQ

How do I get the WhatsApp Web QR code?

Open web.whatsapp.com in your computer’s browser. The QR code appears on the login screen. Then scan it from Linked Devices in WhatsApp on your phone.

Why won’t my WhatsApp Web QR code scan?

The usual causes are a weak connection, an expired code, a dirty camera lens, an ad blocker, a VPN or an outdated browser. Reload the code, check both connections, and try the fixes above.

Can I use WhatsApp Web without scanning a QR code?

Yes. Click “Link with phone number” under the QR code, enter your number, and type the 8-character code on your phone under Linked Devices.

How long does the WhatsApp Web QR code last?

The code refreshes about every 20 seconds. If you don’t scan any code within roughly two minutes, reload the page or click the reload icon.

Can I scan the WhatsApp Web QR code with my camera app?

No. Use the scanner inside WhatsApp (Linked Devices, then Link a Device). A camera app or third-party scanner won’t connect the session.

Do my phone and computer need the same Wi-Fi?

No. Both need internet access, but they can be on different networks.

What is the difference between WhatsApp Web and WhatsApp Desktop?

Both link the same way, by QR code or phone number code. WhatsApp Web runs in a browser at web.whatsapp.com, while Desktop is an app you install from whatsapp.com/download or the Microsoft Store.

How do I log out of WhatsApp Web?

On your phone, open Linked Devices, tap the computer’s session, and choose Log out. You can also log out from the menu inside WhatsApp Web.

Can I use the official WhatsApp Business API with the QR code login?

Not officially. The QR code login is for WhatsApp Web and the WhatsApp Business App. The official WhatsApp Business API connects through Meta’s platform, so any tool that links your number by QR scan is working through WhatsApp Web instead.

Final thoughts

The WhatsApp Web QR code is quick when you prepare for it: open the page, keep your phone ready, use the scanner inside WhatsApp, and scan within seconds. When the code fails, reload it, check both connections, remove blockers like VPNs and ad blockers, and update your browser and app. If scanning still doesn’t work, the “Link with phone number” option gets you in with an 8-character code.

Finish every session on a shared computer by logging out, and review your Linked Devices list from time to time. Do that and WhatsApp Web stays both fast and safe.