What is WhatsApp Web and how do I start using it?

WhatsApp Web is a computer-based extension of the mobile app. It mirrors conversations from your phone to a desktop browser. To begin, open web.whatsapp.com on your computer, then on your phone go to WhatsApp Settings > Linked Devices > Link a Device, and scan the QR code shown on the screen. After that, your chats appear on both devices, and messages you send from the computer are securely delivered using the same end-to-end encryption.

Can I use WhatsApp Web without keeping my phone connected to the internet?

Under the multi-device feature, WhatsApp Web can work independently as long as your phone has been linked recently. After the initial linking, your primary phone does not need to stay online for you to send and receive messages on the Web. However, for security reasons, if you haven't used the Web client for an extended period (over 14 days) or if you log out from your phone, you will need to re-scan the QR code. Also, certain actions like creating new broadcast lists or viewing live locations may still require your phone to be active.

Is WhatsApp Web secure for daily use in an office environment?

WhatsApp Web uses the same end-to-end encryption protocol as the mobile app, which means messages are scrambled from sender to receiver. That said, you should always lock your computer screen when away, and avoid using the Web version on public or shared computers. You can also enable two-step verification on your phone for an extra layer of security. For sensitive work, it's wise to log out from WhatsApp Web after each session (click on the three-dot menu > Log out) to prevent unauthorized access to your chats.

Which browsers and operating systems are compatible with WhatsApp Web?

WhatsApp Web is a browser-based application. It works best on the latest versions of Google Chrome, Firefox, Microsoft Edge, Safari, and Opera. You need Windows, macOS, Linux, or a Chromebook. There is no dedicated desktop app for all platforms, but you can 'Install' WhatsApp as a Progressive Web App (PWA) from your browser menu, which gives you a dedicated window and better taskbar integration. Ensure your browser has JavaScript enabled and you have a stable internet connection.

Why is my WhatsApp Web not displaying messages or showing 'phone not connected'?

This usually occurs because your phone has lost internet connection or the WhatsApp background process is suspended. First, check that your phone has an active internet connection, and open the WhatsApp app on your phone. On the web client, refresh the page. If you still see the error, go to your phone's Linked Devices settings and remove the web session, then re-link by scanning the QR code again. Additionally, update your WhatsApp app to the latest version and clear your browser's cache and cookies for the WhatsApp Web domain.

Can I make voice or video calls through WhatsApp Web?

Yes, WhatsApp Web currently supports one-on-one voice and video calls. This feature is available when you open a chat and click on the phone or video icon at the top of the conversation. However, group calls are not yet supported in the web browser interface. For the best call quality, use a wired internet connection and a headset with a microphone. Note that call features might differ slightly across browsers, so Chrome or Edge is recommended.

Are there any limitations to file sharing via WhatsApp Web?

You can send files such as images, documents (PDF, spreadsheets), and videos from your computer to a chat. The maximum file size for documents on WhatsApp is 2GB in most regions. However, if you send a video, the platform may compress it depending on the original format and length. To send a file, simply click the attach icon (paperclip) in the chat input, choose the file from your computer, add a caption if needed, and press send. You can also drag and drop files directly into the chat window.

How do I manage multiple chats and use keyboard shortcuts on WhatsApp Web?

WhatsApp Web offers efficient navigation with shortcuts. For example, Ctrl+N starts a new chat, Ctrl+Shift+] moves to the next chat, and Ctrl+E searches messages. You can mute chats, archive conversations, and pin important chats by hovering over the chat and clicking the menu arrow. To quickly filter unread chats, click on the filter icon at the top. Pinning a chat will keep it at the top of your list. You can also customize notifications and set Desktop notifications for new messages via the settings panel.

Is it possible to use WhatsApp Web on multiple computers at the same time?

WhatsApp allows linking up to four devices simultaneously, including the web browser and desktop apps. Each device is linked to your primary phone but uses its own connection. To add a new computer, go to Linked Devices on your phone and scan the new QR code. You can manage all active sessions from your phone or directly from WhatsApp Web's settings (showing all devices). Remember, the total limit includes tablets, desktop apps, and web browsers – but you can always log out from an old device to free up a slot.

How can I send messages to someone who hasn't saved my number on WhatsApp Web?

On WhatsApp Web, you cannot start a chat with an unknown number directly from its interface; you need the contact already saved in your phone's address book and synced to WhatsApp. If you receive a message from an unsaved number, you can reply to it in the chat window, and WhatsApp will keep that conversation accessible. Alternatively, save the number to your phone's contacts first and sync your contacts within WhatsApp, then the chat will appear on the Web interface.

What should I do if WhatsApp Web logs me out frequently or unexpectedly?

Frequent logouts can happen due to inactivity (WhatsApp generally logs you out after 14 days of no usage), or if your phone's WhatsApp version is outdated. Log out from all other web sessions and re-link. Also, check if you're using a VPN or proxy that changes your IP address frequently – WhatsApp might treat that as a security risk. Ensure your browser allows necessary cookies and local storage. If the problem continues, remove the 'whatsapp.com' site data from your browser settings and re-link your phone, preferably with the latest WhatsApp version installed.

Are there any privacy features within WhatsApp Web, like disappearing messages?

Yes, WhatsApp Web supports the same privacy toggles as the mobile app. In any chat, click on the contact name and select 'Disappearing messages' to set a timer (24 hours, 7 days, or 90 days). You can also enable 'Screen Lock' specifically for the Web app when using a personal computer: go to WhatsApp Web’s settings > Privacy > Screen Lock, and set a PIN to unlock the Web session after a period of inactivity. This provides extra privacy when you step away from your desk.

在更大的屏幕上，与重要的人保持同步。

WhatsApp Web 是手机应用的桌面延伸。它让你在电脑上读取和回复消息、分享文件、查看多媒体，所有对话实时同步。不用频繁拿起手机，让沟通更集中。

快速开始： 打开浏览器访问 web.whatsapp.com → 在手机 WhatsApp 中进入「设置」→「已链接设备」→「链接一个设备」，扫描电脑屏幕的二维码即可映射全部对话。之后即使手机锁屏，只要保持联网，网页端也能独立收发消息（多设备机制）。

消息同步文件传输语音/视频呼叫

不只是手机镜像，更是高效工作台

多设备独立连接

通过多设备协议，你可以同时链接最多 4 台设备（电脑+平板），手机不必时刻在线。即使手机没电，电脑端依然能通过自己的网络连接收发消息。原生端到端加密仍然生效。

拖放式文件共享

从桌面直接拖拽文档、照片或视频到会话。最多支持 2GB 的文件，且自动保留高画质。你可以快速预览图片并添加说明。对于批量保存，每个项目文件夹都能轻松处理。

完整键盘快捷操作

用快捷键翻查聊天（Ctrl+Alt+方向键），静音、固定、标为未读。使用 Ctrl+F 快速寻找特定消息，或 Ctrl+Shift+F 直接跳至未读聊天。让处理会话的效率得到极大提升。

专注的界面框架

深色模式可减少视觉疲劳，聊天列表和面板宽度自由调节，将隐藏的工具栏自动收纳。你可以同时打开多个对话窗口，并在不同窗口间快速切换，适合客服与协作场景。

从零到熟练：一份可执行指南

· 首次登录

在电脑上打开 web.whatsapp.com，显示二维码。随后拿起手机，打开 WhatsApp → 设置 → 已链接设备。点击「链接一个设备」，手机将扫描二维码，并在几秒内完成授权。

· 保持连接状态

建议在浏览器中把 WhatsApp 设为「允许通知」，并关闭省电模式对浏览器的限制。若长时间未使用，页面会提示重新验证；点刷新即可，无需重新配对。

· 独立链接其他设备

在手机已链接设备面板中，可查看所有在线会话。你可以随时终止任意设备的访问。若需要在另一台电脑新增设备，重复扫描二维码，每个账户最多关联四台设备。

桌面沟通的边界与细节

WhatsApp Web 在某些功能上仍受手机端限制。例如，你不能仅通过 Web 发起群组语音通话，也无法直接编辑广播列表。但它覆盖了大部分的日常消息交流：发送文字、语音信息、贴纸、位置，以及联系人分享。所有聊天记录经端到端加密，你的输入在浏览器本地处理，不会以明文存储在任何服务器上。

如果使用公共电脑，强烈建议点击头像菜单里的「注销」，防止隐私泄露。浏览器书签或密码管理器也可帮助你快速回到登录页，但注意不在共享设备保存登录状态。

常见问题排查指南

使用 WhatsApp Web 需要一直保持手机亮屏吗?

不需要。在常规操作下，手机不需要保持亮屏或长时间在线。只要手机上 WhatsApp 应用曾在此设备授权，并且你在每 14 天内至少使用一次，手机处于离线状态也能收到消息。但如果手机超过 14 天未连接，会让你重新扫码验证。

可以同时在两部电脑上使用 WhatsApp Web 吗？

当然可以，但同一时间最多总共连接 4 台设备（包括浏览器和桌面应用）。你只需在这台新电脑上扫码，手机会提示添加新设备。可在手机端「已链接设备」查看或删除旧设备。

文件传输是否有大小限制？

WhatsApp 对单个文档的上限通常为 2GB。但视频可能经过压缩以减小体积，影响画质。发送原始图片时，建议选择「文档」而不是「图片库」，这样不会压缩画质。

Web 端通话和手机通话有区别吗？

一对一语音与视频通话均支持，但在有些浏览器上可能不稳定。电脑必须配备麦克风和摄像头。而群组通话目前无法从 Web 端发起或加入，仅能通过手机启动。

注销后重新登录，聊天记录还在吗？

聊天记录仍保留在你的手机上。当你重新扫码链接，Web 端会再次获取你的历史消息（从手机同步过去）。如果你更换手机且没有备份，那么未备份的消息会丢失。

如何让 Web 端消息在任务栏显示预览？

点击 Web 界面的设置 > 通知，开启显示消息预览，然后在系统通知设置里确保 WhatsApp Web 的弹窗通知开启。Chrome 或 Edge 需允许来自该站点的通知。

为何有时收到「此设备已注销」的提示？

可能是你的手机在安全设置里主动移除了设备，或者你更改了手机号。重新登录时需要用当前绑定 WhatsApp 的手机扫描二维码。出于安全，尽量更新应用并保持手机系统未 root。

Web 端支持发送动态、查看状态吗？

目前 WhatsApp Web 显示「状态」更新，但你不能点击查看，也不能发布新状态。你只能浏览联系人头像旁的状态圈，点击时会提示在手机上打开查看。所有状态功能需在手机端使用。

可不可以发送加密消息或自毁消息？

端到端加密对所有消息默认开启。此外，「消失消息」功能可用：在某个聊天中点击联系人名字 > 消失消息 > 设置 24小时/7天/90天。该设置对 Web 端同样生效。

清理缓存会影响聊天记录吗？

不会删除云端或手机里的聊天记录。但如果你清除浏览器站点数据，Web 端会要求重新登录。你只是退出本地访问，消息内容不会丢失。

在微信电脑端复制文本到 WhatsApp Web 可以用快捷键吗？

可以，常规的复制粘贴（Ctrl+C / Ctrl+V）都能使用；也可以用鼠标右键菜单。如果你从 Excel 复制表格粘到聊天框，可能会被转换为纯文本，但格式依旧保留。

为什么我网页端无法显示某些表情包或贴纸？

大部分官方贴纸可用。若你收到第三方贴纸包，可能因未更新到新版本而显示为空白。升级浏览器，并确保在手机上更新 WhatsApp 到最新版。当贴纸数据同步到 Web 后即可显示。

以上方法基于常见浏览器环境，具体以你当前使用版本的实际界面为准。若问题持续，请参阅官网帮助中心。