WhatsApp Web puts your WhatsApp conversations in a browser tab, with a real keyboard, copy and paste, and your customer chats next to your other work. For a business that lives on WhatsApp, it is usually the first serious upgrade from thumb-typing on a phone.
This guide covers how WhatsApp Web works with both the regular WhatsApp app and the WhatsApp Business app, how to log in and stay logged in, which business tools work in the browser, the real limits you will hit as a team, and how to keep the whole thing secure.
What WhatsApp Web is and how it works
WhatsApp Web (web.whatsapp.com) is an official WhatsApp client that runs in your browser. It connects to your account through WhatsApp’s linked devices system: your phone stays the primary device, and the browser session becomes a companion that sends and receives messages as your number.
Since WhatsApp moved to multi-device, a linked browser keeps working even when your phone is offline. You can link up to four companion devices to one WhatsApp account, in any mix of browsers and the desktop apps for Windows and macOS.
Both the regular WhatsApp app and the WhatsApp Business app support WhatsApp Web the same way. If your number runs on WhatsApp Business, the browser session shows the same chats plus a subset of the business tools.
How to log in to WhatsApp Web
Tick "Keep me signed in" on the QR screen if this is your own computer and you want the session to survive closing the tab. On a shared or public computer, leave it unticked and log out when you finish.
- 1
Open web.whatsapp.com
In any modern browser on your computer, go to web.whatsapp.com. A QR code appears on screen.
- 2
Open linked devices on your phone
In WhatsApp or WhatsApp Business on your phone: tap the three-dot menu (Android) or Settings (iPhone), then Linked Devices, then Link a Device.
- 3
Scan the QR code
Point your phone’s camera at the QR code on the computer screen. The browser loads your chats within a few seconds.
- 4
Or link with your phone number instead
If you cannot scan (for example, a broken camera), choose "Link with phone number" on the web page, enter your number, and type the one-time code WhatsApp shows into your phone.
Related: WhatsApp QR codes and linked devices
WhatsApp Business on the web: what works in the browser
If your number is on the WhatsApp Business app, the browser session carries over the essentials of the business profile experience, but not everything. As of 2026, here is the practical split:
- Works on the web: sending and receiving messages, quick replies (type / to insert them), labels on chats, viewing your catalog and sharing catalog items, media, voice notes, and group chats.
- Phone-only: creating and editing the business profile, setting up greeting and away messages, editing the catalog, broadcast list creation, and account-level settings such as two-step verification.
- Statistics: the Business app’s basic message stats live on the phone, and the web interface does not add analytics of its own.
The real limits of WhatsApp Web for a business
For a solo operator, WhatsApp Web is close to perfect. The friction starts when more than one person needs to work the same number:
- No accountability: up to four linked devices can share the number, but every session sees every chat, nothing shows who replied, and nobody can claim a conversation.
- No assignment or workflow: there is no way to route a chat to a colleague, mark it as handled, or keep a queue. Coordination happens over shoulder taps.
- No shared history when someone leaves: log out their device and their context leaves with them; nothing records who said what on behalf of the business.
- No automation: no auto-replies from the browser, no scheduled messages, no rules. The Business app’s greeting and away messages are configured on the phone and are the extent of it.
- Four-device ceiling: the fifth teammate has no seat. Rotating devices in and out logs people out mid-conversation.
- Session fragility: a companion device that stays offline long enough gets unlinked, and corporate networks sometimes block WhatsApp Web outright.
Tips that make WhatsApp Web faster
- Keyboard shortcuts: Ctrl+Alt+N (Cmd on Mac) starts a new chat, Ctrl+Alt+Shift+U toggles unread, and arrow keys move between chats. Press / in the Business app’s composer for quick replies.
- Enable desktop notifications when WhatsApp asks, or you will miss messages the moment the tab is in the background.
- Drag and drop files straight into a chat to send them; paste screenshots directly from the clipboard.
- Prefer the desktop app (Windows or macOS) if you keep WhatsApp open all day: it survives browser restarts and supports calling, which the browser version historically has not.
- Use search (Ctrl+Alt+/) before scrolling: it covers message text across all chats.
Keeping WhatsApp Web secure
Anyone with an active WhatsApp Web session can read and send messages as your business, so treat sessions like keys:
- Only ever scan a login QR code that you yourself opened on web.whatsapp.com. If anyone sends you a QR code and asks you to scan it, that is an account-takeover attempt.
- Review Linked Devices on your phone regularly and log out anything you do not recognize.
- Log out of sessions on shared computers, and avoid "Keep me signed in" anywhere you do not control.
- Turn on two-step verification in the app so a stolen SIM or verification code alone cannot re-register your number.
Troubleshooting: WhatsApp Web not working
- QR code will not scan: refresh the page for a fresh code, clean the camera, and make sure the phone app is up to date.
- Chats not loading: check the computer’s connection first, then the phone’s. Multi-device removes the old requirement that the phone stay online, but the account still needs the phone to connect periodically.
- Logged out unexpectedly: WhatsApp unlinks companion devices after roughly two weeks without the phone coming online, and logging out of the phone app unlinks everything.
- Blocked at work: some corporate firewalls block web.whatsapp.com; the desktop app or a different network usually confirms whether that is the cause.
- Messages out of sync: fully close and reopen the tab; if it persists, unlink the device and scan again.
When WhatsApp Web stops being enough
The pattern repeats across businesses: WhatsApp Web works brilliantly until the day two or three people need to answer the same number with any kind of order. Then the missing pieces are always the same ones: who owns this chat, what was already promised, why did nobody reply to this customer, and how do we answer at 11pm without giving everyone the phone.
That is the category of tool Spun was built for. It connects to your existing number through the same linked-devices mechanism as WhatsApp Web, so setup is one QR scan and your history and groups come along. From there, every teammate gets their own login to one shared inbox, with assignment, labels, full history, AI-drafted replies and summaries, voice-note transcription, scheduled messages, and auto-replies for after hours. Pricing is flat, from $50 per month with unlimited team members, so it does not punish growth the way per-seat tools do.