How to transfer files from laptop to laptop via Wi-Fi: all the working methods

Transferring files between laptops wirelessly is a task that every user faces. Whether you want to share vacation photos, forward an important work document, or transfer your movie collection to another computer, Wi-Fi connection becomes the most convenient solution. No need to search for a flash drive, connect cables, or configure complex network protocols—just a few clicks.

In this article we will look at all current methods data transmission over the air: from standard tools Windows And macOS to specialized programs and cloud services. You will learn how to organize local network between two laptops, set up FTP server in 5 minutes, use cloud storage for instant syncing and even transfer files via messengers No size restrictions. Each method is illustrated with step-by-step instructions, taking into account potential errors and nuances of different operating systems.

We will pay special attention to transmission speedsWhy files sometimes copy at 1 MB/s instead of the promised 300 Mbps, how to check your network's actual throughput, and what to do to speed up the process. We'll also discuss which methods are safe for confidential data and which are best avoided on public networks.

1. Transfer via LAN (SMB/AFP)

The most reliable and universal way is creation local network between laptops. It works on all versions. Windows (from 7 to 11), macOS and even Linux, doesn't require an internet connection and provides high transfer speeds. The main requirement is that both devices must be connected to the same Wi-Fi network (or one of them must be broadcasting the network).

On Windows a protocol is used for this SMB (Server Message Block), on Mac — AFP (Apple Filing Protocol) or SMB. The setup process takes no more than 5 minutes:

• 🖥️ On the sending laptop: Open Control Panel → Network Settings → Advanced Sharing Settings and enable network discovery, file, and printer sharing. Under "All Networks," disable password-protected access (if you're transferring files on a trusted network).
• 📁 Select a folder for long-term access: Right-click on it → Properties → Access → ShareSelect a user from the drop-down menu. All and set the permission to "Read and write".
• 🔍 On the recipient laptop: Open File Explorer → NetworkThe sending laptop should appear in the list. Double-click it, enter the username and password (if required), and copy the desired files.

On macOS the process is even simpler: open System Preferences → Sharing, enable the "File Sharing" option and add the folder to the shared list. On the second Mac the folder will appear in the side menu Finder in the "Local" section.

⚠️ Note: If the laptops don't see each other on the network, make sure both devices are on the same subnet (the first three digits of the IP address must match). You can find the IP using the command ipconfig (Windows) or ifconfig (macOS/Linux).

Both laptops are connected to the same Wi-Fi network.

AP Isolation mode is disabled on the router.

The firewall does not block ports 137-139 and 445 (SMB)

Computer names on the network do not contain Cyrillic or special characters.

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2. Using an FTP server to transfer files

If the local network is not working for some reason (for example, due to corporate Wi-Fi limitations), you can organize FTP server on one of the laptops. This method is universal, but requires minimal technical skills. The main advantage is the ability to transfer files even across different networks (as long as the appropriate ports are open on the router).

For Windows The easiest way is to use the built-in FTP server or a free program FileZilla ServerOn . macOS You can launch an FTP server from the terminal with a single command. Here are step-by-step instructions for FileZilla Server:

• 📥 Install FileZilla Server from the official website. During installation, select the port 21 (standard for FTP) and check the "Run as a service" option.
• 🔑 Create a user: In the program interface, go to Edit → Users, add a new user (for example, transfer) and specify the folder to which he will have access.
• 🌐 Connect from another laptop: Use any FTP client (eg. FileZilla Client or WinSCP) and enter the IP address of the first laptop, username and password.

For macOS Launch the terminal and enter:

sudo -s launchctl load -w /System/Library/LaunchDaemons/ftp.plist

After this, the FTP server will be accessible at the address ftp://[your_Mac_IP_address]To stop the server, use:

sudo -s launchctl unload -w /System/Library/LaunchDaemons/ftp.plist

⚠️ Please note: FTP transfers data, including passwords, in cleartext. If you are working on a public network, use SFTP (SSH File Transfer Protocol) or configure FTP with TLS encryption in FileZilla Server.

Local Area Network (SMB/AFP)

FTP/SFTP

Cloud storage

Messengers (Telegram, WhatsApp)

Another way

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3. Cloud storage: fast synchronization without settings

If you need to transfer files without preliminary network configurationThe easiest way is to use cloud services. This method is suitable for small files (up to 50 GB) and requires no technical knowledge. The main advantage is access to files from any device, even if the laptops are on different networks.

The most popular services:

• ☁️ Google Drive: Free 15GB, folder support, version for Windows/macOS Syncs files automatically. Speed ​​depends on your internet connection.
• 📦 Dropbox: 2 GB is free, but there is a "Transfer" option for sending large files (up to 100 GB) without taking up disk space.
• 💽 Mega: Free 20GB storage with client-side encryption. Suitable for sensitive files.
• 📎 Mail.ru Cloud: Free 8 GB, user-friendly interface for Russian-speaking users.

How to transfer files via Google Drive:

1. Upload files to the folder Google Drive on the first laptop (via browser or desktop application).
2. Right-click on the file → Share → Enter the email address of the second laptop or generate an access link.
3. On the second laptop, open the link or check the folder For me V Google Drive.

For large files (e.g. 4K video) it is better to use Dropbox Transfer or WeTransfer (Free up to 2 GB). These services do not require registration and allow you to send a file via email with limited access time.

4. Specialized programs for file transfer

If you need maximum speed If you're looking for minimal configuration options, consider programs designed specifically for transferring files over a local network. They automatically detect devices, support transfer resumption, and are often faster than standard protocols.

Top 5 programs for transferring files via Wi-Fi:

• 🚀 LocalSend: Open source software with support Windows, macOS, Linux, Android And iOSTransfer over a local network without the Internet, TLS encryption.
• 📲 Snapdrop: A web service (browser-based) that requires no installation. Ideal for one-time transfers between different operating systems.
• 🔗 Feem: A cross-platform solution supporting file, text, and link transfers. Chat functionality is also included.
• 💻 Droid Transfer: Optimized for transfer between Windows And Android, but also works between PCs.
• 🌍 Resilio Sync: Uses P2P technology to synchronize folders. Suitable for regularly exchanging large amounts of data.

Let's look at the setup using an example LocalSend:

1. Download and install the program from the official website on both laptops.
2. Launch LocalSend and make sure both devices are connected to the same Wi-Fi network.
3. On the sending laptop, select the files, specify the recipient (the laptop will appear in the list automatically), and confirm the transfer.
4. On the receiving laptop, accept the incoming file.

Transfer speed in LocalSend can reach 50-70 MB/s (depending on the router), which is comparable to a wired connection. The program also supports QR codes for quick connection of devices.

Why is LocalSend faster than FTP?

LocalSend uses modern protocols (WebRTC) optimized for local networks and minimizing overhead. FTP, on the other hand, was developed in the 1970s and doesn't take into account the specifics of wireless connections. Furthermore, LocalSend automatically compresses data on the fly, further accelerating transfers.

5. Transfer via instant messengers and social networks

If the files aren't too large (up to 1-2 GB), they can be sent via popular instant messaging apps. This method is convenient because it doesn't require any configuration—all you need is the client installed on both laptops. Telegram, WhatsApp or Viber.

Comparison of messengers by file limits:

• 📱 Telegram: To 2 GB Per file, no compression, folder support. Ideal for transferring archives and videos.
• 💬 WhatsApp: To 100 MB Per-file image compression. Suitable for photos and documents.
• 🔵 Viber: To 200 MB, but slow loading of large files.
• 📧 VK/OK: To 500 MB, but the files are only available after uploading to the server.

How to send a file via Telegram:

1. Open Telegram Desktop on both laptops (or web version).
2. Create a "Saved Messages" chat or any other chat that is available on both devices.
3. Drag files into the chat window. Wait for the upload to complete (an indicator will appear next to the file).
4. On the second laptop, download files from the chat.

For files of size more than 2 GB you can use it Telegram bots, For example, @FileTransferBotThey allow you to upload files up to 4 GB and generate a download link that is available for 30 days.

⚠️ Attention: When transferring confidential data via instant messengers, please keep in mind that files are temporarily stored on the company's servers (even in "secret chats" Telegram Metadata may be preserved). For critical documents, use a local network or encrypted archives.

6. Direct transmission via Wi-Fi Direct (without a router)

If you don't have access to a router, you can organize direct connection between laptops by technology Wi-Fi DirectThis method works as a point-to-point connection and provides high transfer speeds (up to 250 Mbps in standard 802.11n).

On Windows 10/11 Wi-Fi Direct is supported at the system level, but for convenience it is better to use the program Feem or SuperBeamOn . macOS the analogue is the function AirDrop, but it only works between devices Apple.

Instructions for Windows:

1. Install Feem on both laptops.
2. On one of the laptops, press Create a Wi-Fi Direct network (the option may be called "Hotspot").
3. On the second laptop, connect to the created network (the password will be displayed in the program).
4. Drag files into the window Feem and select the recipient.

For macOS (if the second laptop is - Mac):

1. Open Finder and select AirDrop in the side menu.
2. Make sure that on both Mac included Bluetooth And Wi-Fi.
3. Drag files into the window AirDrop and select the target Mac.

Wi-Fi Direct is especially convenient when traveling or in places where there is no access to a router. However, keep in mind that Only two devices can be connected at a time, and speed may drop due to interference.

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7. Optimizing Wi-Fi transmission speed

If files are copied too slowly (for example, at a speed of 1-5 MB/s If you're experiencing a connection speed of 50 MB/s instead of the expected one, the problem lies in your network or hardware settings. Here are the key factors affecting speed:

• 📶 Wi-Fi standard: Outdated 802.11g (54 Mbps) 10 times slower 802.11ac (up to 1300 Mbps). Check your router settings.
• 🔄 Channel and frequency: A congested 2.4 GHz channel (especially in apartment buildings) slows down transmission. Switch to 5 GHz.
• 🖧 Encryption: WPA3 faster WPA2, A WEP slows down the network by 30-40%.
• 💾 Hard drive: If files are copied to the HDD, the speed is limited 100-150 MB/s (for SSD - up to 500 MB/s).

How to speed up transfer:

1. Switch the router to the range 5 GHz (in the settings, select the channel with the minimum load, for example, 36 or 149).
2. Disable the option on your router WMM (Wi-Fi Multimedia) - sometimes it conflicts with SMB.
3. Use archiving (ZIP/RAR) for transferring many small files - this reduces the number of network packets.
4. If the router supports MU-MIMO, enable this option to transfer data in parallel.

To check the actual network speed, use the utility iPerf:

iperf3 -s // Run on the server laptop
iperf3 -c [server_ip_address] // Run on the client laptop

If the speed is lower 50 Mbps, the problem is in the router settings or interference.

8. Security when transferring files over Wi-Fi

Transferring files over a wireless network always carries the risk of data interception, especially in public places (hotels, cafes, airports). Here mandatory precautions:

• 🔒 Turn off sharing after transferring files. In Windows: Control Panel → Network Settings → Change advanced sharing settings → Turn off network discovery.
• 🛡️ Use a VPN to encrypt traffic. For example, ProtonVPN or Windscribe (there are free tariffs).
• 🔐 Encrypt archives: Before transferring confidential files, pack them in a ZIP file with a password (for example, via 7-Zip or WinRAR).
• 🚫 Avoid FTP on open networks: This protocol transmits passwords in clear text. Use SFTP or LocalSend.

If you frequently transfer files over unreliable networks, set up encrypted tunnel through SSH:

ssh -L 2222:localhost:22 user@[your_laptop_IP_address]

After that you can connect via localhost:2222 through SFTP, and all traffic will be encrypted.

⚠️ Warning: On public Wi-Fi networks (such as in hotels), your traffic may be visible to other users. Never share passwords, bank documents, or personal photos without encryption.

How to check who else is connected to your Wi-Fi network?

IN Windows Open command prompt and type:

arp -a

The list of IP addresses will show all devices on your local network. Compare them with your own devices. Unknown IP addresses may indicate the connection of other devices.

FAQ: Frequently asked questions about transferring files over Wi-Fi

Is it possible to transfer files between laptops with different operating systems (Windows and macOS)?

Yes, all the methods described are cross-platform. For a local network, use the protocol SMB (on macOS it turns on in System Preferences → Sharing → Files & Folders → Options). Programs like LocalSend or Snapdrop work on any OS without additional settings.

Why is Wi-Fi transmission speed lower than cable?

A wireless network has physical limitations: interference from other devices, distance to the router, and the Wi-Fi standard. For example, even under ideal conditions 802.11ac gives the maximum 80-100 MB/s (really), while Gigabit Ethernet provides 110-120 MB/sIn addition, the speed is affected by the processor load during data encryption.

How to transfer files if one of the laptops does not have Wi-Fi (only Ethernet)?

In this case, you can use the second laptop as bridge:

1. Connect your laptop with Wi-Fi to the router over the air, and your laptop without Wi-Fi to it via cable (Ethernet).
2. On a laptop with Wi-Fi, turn on Internet Connection Sharing (Windows) or Public Internet (macOS).
3. Now both laptops will be on the same network, and you can use any file transfer method.

Is it possible to transfer files between laptops via a mobile hotspot?

Yes, but the speed will be limited by the mobile network bandwidth (usually 10-50 Mbps). To do this:

1. Turn on modem mode on a smartphone (Android/iOS).
2. Connect both laptops to the created access point.
3. Use any method from the article (preferably LocalSend or cloud).

Please note that transferring large files (>1 GB) can quickly use up your mobile data.

What files can't be transferred over Wi-Fi?

Technically, you can transfer any files via Wi-Fi, but there are limitations:

• 📂 Windows system files (For example, pagefile.sys, hiberfil.sys) - copying them may lead to OS errors.
• 🔄 Files opened in programs (for example, a database 1C or project Photoshop) - this may damage the data.
• 🔒 Encrypted containers (For example, VeraCrypt) - when the transmission is interrupted, they become unreadable.

Also avoid transmission executable files (.exe, .dmg) without antivirus scanning - they may contain malicious code.