WhatsApp works on your computer through two separate routes
WhatsApp offers two ways to use it on a computer: WhatsApp Web, which runs in your browser and requires your phone to stay connected, and WhatsApp Desktop, a standalone program you install on Windows or Mac. WhatsApp Web is faster to set up and needs no installation. WhatsApp Desktop is better if you want to use WhatsApp without keeping your phone nearby, though your phone still needs to be online and connected to the internet.
Both routes sync with the same WhatsApp account on your phone — you cannot run two separate accounts on the same phone. Your messages, contacts, and chat history appear on whichever device you open WhatsApp on, but only one device can actively send and receive messages at a time.
Key Takeaways
- WhatsApp Web works when ready in any browser without installation, but your phone must stay online and nearby.
- WhatsApp Desktop is a program you install on Windows or Mac, and it lets you use WhatsApp without your phone in your hand, though your phone still needs internet access.
- Both routes use the same account as your phone, so you cannot run separate conversations on each device.
- To set up either one, you scan a QR code with your phone's WhatsApp camera, which links your computer to your account.
How to use WhatsApp Web in your browser
Open any web browser on your computer — Chrome, Firefox, Safari, or Edge all work — and go to web.whatsapp.com. You will see a large QR code on the screen and a message asking you to link your phone.
On your phone, open WhatsApp and tap the three-dot menu icon (Android) or go to Settings (iPhone). Look for an option called "Linked Devices" or "WhatsApp Web". Tap it, then tap the button to link a new device. Your phone's camera will open. Point it at the QR code on your computer screen until the code scans — you will see a checkmark or the page will load automatically.
Your chats will now appear on your computer. You can send and receive messages, make calls, and share files. When you close the browser tab or log out, WhatsApp Web stops working on that computer. To use it again, you repeat the QR code scan.
How to install WhatsApp Desktop on Windows or Mac
Go to whatsapp.com/read in your browser. The page will detect whether you use Windows or Mac and show you the correct read button. Click it. The installer file will read to your computer — it is usually named something like "WhatsApp.exe" (Windows) or "WhatsApp.dmg" (Mac).
On Windows, double-click the installer file. A window will open asking where to install WhatsApp. The default location is fine for most people. Click "Install" and wait for the process to finish. A WhatsApp window will open automatically.
On Mac, double-click the .dmg file. A window will open showing the WhatsApp icon. Drag it into the Applications folder. Open Applications, find WhatsApp, and double-click it to start the program for the first time.
Either way, you will see the same QR code screen as WhatsApp Web. Scan it with your phone using the same "Linked Devices" menu in WhatsApp. Once scanned, your desktop app will load your chats and stay connected as long as the program is open.
What happens to your messages and privacy
Messages you send or receive on your computer appear in the same chat thread on your phone — there is no separate inbox. If someone sends you a message while you are using WhatsApp on your computer, you will see it on both devices. Notifications can go to either your phone or your computer depending on which one is active.
WhatsApp messages are encrypted end-to-end, meaning WhatsApp itself cannot read them. This encryption works the same way on your phone, in WhatsApp Web, and in WhatsApp Desktop. However, anyone with access to your computer can open WhatsApp and read your messages if you stay logged in. If you use a shared computer, log out of WhatsApp Web when you are done, or use a password-protected user account on the computer.
When to use WhatsApp Web versus WhatsApp Desktop
Use WhatsApp Web if you want the fastest setup with no installation, or if you use many different computers. It works on any device with a browser. The trade-off is that your phone must stay connected to the internet and cannot be too far away — the connection can drop if your phone loses signal or goes to sleep.
Use WhatsApp Desktop if you spend most of your time at one computer and want a more stable connection. The desktop app keeps running even if your phone screen locks or goes to sleep, as long as your phone stays online. It also sends notifications to your computer taskbar or menu bar, which some people find less intrusive than phone notifications.
Troubleshooting common problems
If the QR code will not scan, make sure your phone's camera is clean and has enough light. If WhatsApp Web or Desktop says "Phone not connected", check that your phone is online and that WhatsApp is open on it. Restart WhatsApp on your phone and try scanning the QR code again.
If you see "Couldn't refresh connection" or messages are not syncing, your phone may have lost internet. Turn your phone's WiFi or mobile data off and back on. If the problem continues, close WhatsApp Web or Desktop on your computer and log back in by scanning the QR code again.
If you installed WhatsApp Desktop but it will not open, restart your computer. On Mac, if you see a message saying the app cannot be opened, go to System Preferences, click Security & Privacy, and allow WhatsApp to run. On Windows, make sure you have administrator permission to install programs.
Frequently Asked Questions
Can I use WhatsApp on my computer without my phone?
No. Your phone must be online and connected to the internet at all times, even if you are using WhatsApp only on your computer. WhatsApp Desktop and WhatsApp Web both require your phone to stay active in the background. If your phone goes offline, your computer will disconnect within a few minutes.
What if I lose my phone or it breaks?
WhatsApp Web and Desktop will stop working when ready. You will need to set up WhatsApp on a new phone first, then scan the QR code again on your computer. Your chat history is stored on your phone, not on WhatsApp's servers, so you will only see messages from the point you reconnect forward.
Can someone else use WhatsApp on my computer if I leave it open?
Yes. If you leave WhatsApp Web or Desktop logged in, anyone with access to your computer can read your messages and send messages as you. Always log out of WhatsApp Web when you use a shared computer. On your personal computer, you can stay logged in, but use a password-protected user account.
Is WhatsApp Web or Desktop safer than using WhatsApp on my phone?
Both are equally encrypted. The main security difference is that your computer may be easier for someone else to access than your phone. Use a strong password on your computer user account and do not leave WhatsApp logged in on shared devices.
Do I have to pay to use WhatsApp on my computer?
No. WhatsApp Web and WhatsApp Desktop are both free. You do not need a subscription or to pay any fee. You only need an active WhatsApp account on your phone and an internet connection.