The fastest way depends on file size and who you're sending to
For files under 25 MB, email works fine if both people have it set up. Gmail, Outlook, and most providers handle that without trouble. For anything larger, you need a different method — email systems reject files above their limit, usually somewhere between 25 and 50 MB depending on your provider.
The real choice is between cloud storage (Google Drive, Dropbox, OneDrive), file transfer services (WeTransfer, Tresorit), and direct peer-to-peer tools. Each has different speed, storage limits, and privacy trade-offs. Your choice depends on whether you need the file to stay accessible afterward, how much privacy matters, and whether the person receiving it needs special software.
Key Takeaways
- Email works for files under 25 MB; anything larger needs cloud storage or a file transfer service.
- Google Drive, Dropbox, and OneDrive let you share a link and keep the file accessible, but require accounts from both people.
- WeTransfer and similar services work without accounts and delete files after a set time, which is useful for one-time sends.
- Direct transfer tools like Syncthing or Resilio Sync move files between computers on the same network without uploading to the internet.
- Compression (zipping) can reduce file size by 50 percent or more, sometimes letting you use email instead of a larger service.
Sending through email with a cloud storage link
This is the standard method for most people. You upload the file to Google Drive, Dropbox, or OneDrive, then send the recipient a link in an email. They click the link, download the file, and you can delete it from your storage afterward if you want.
The advantage is that both of you have a record of the file, and you can change who can see it later. The disadvantage is that both people need an account with the same service — if you use Google Drive and they use Dropbox, you have to use both. To share a Google Drive file, right-click it, select "Share," enter their email address, and choose whether they can view, comment, or edit. For Dropbox, the process is similar: right-click, select "Share," and paste the link in an email. OneDrive works the same way.
These services also let you set an expiration date on the link, which is useful if you want the file to stop being accessible after a certain date. In Google Drive, open the sharing settings and click "Expiration date." In Dropbox, you can set this when you create the link.
Using a file transfer service for one-time sends
Services like WeTransfer, Tresorit, and Sync.com are built specifically for sending large files without requiring the recipient to have an account. You upload the file, enter the recipient's email address, and they get a download link. The file usually deletes itself after seven days or 30 days depending on the service.
WeTransfer is the most common. Go to wetransfer.com, drag your file into the box, enter the recipient's email, add a message if you want, and click "Transfer." They receive an email with a download link. The free version handles files up to 2 GB. Tresorit and Sync.com offer similar features with stronger encryption if privacy is a concern.
The trade-off is that these files don't stay around — once they expire, they're gone. This is actually useful if you're sending sensitive information and want it to disappear automatically. It's also useful if the recipient doesn't have a cloud storage account and you don't want to set one up for them.
Compressing files to make them smaller
Before you send anything, check whether you can make it smaller. Zipping a file (compressing it) can reduce its size by 50 percent or more, depending on what's inside. Photos, videos, and PDFs compress less than documents or spreadsheets. A folder full of Word documents might shrink to half its original size; a folder of photos might shrink by 10 to 20 percent.
On Windows, right-click the file or folder, select "Send to," and click "Compressed (zipped) folder." A new file with a .zip extension appears in the same location. On Mac, right-click and select "Compress." The compressed file is what you send. The recipient unzips it on their end by double-clicking it.
Compression is worth doing if it gets you under an email size limit or makes the upload noticeably faster. It's not worth doing if the file is already a video or photo — those formats are already compressed, and zipping them saves almost nothing.
Transferring files between computers on the same network
If both computers are on the same WiFi network, you can move files directly without uploading to the internet. This is faster for very large files and keeps the data off cloud servers entirely.
On Windows, the simplest method is to enable Network Discovery. Open Settings, go to "Network & Internet," click "Advanced network settings," then "Network discovery," and turn it on. Both computers need this enabled. Then open File Explorer, go to "Network," and you should see the other computer. Click it, navigate to the folder you want, and copy files directly.
On Mac, open Finder, go to "Preferences," click "Sidebar," and check "Connected servers." Then go to "Go" in the menu bar, click "Connect to Server," and type the Windows computer's IP address (ask them to open Command Prompt and type "ipconfig" to find it). Once connected, you can drag files between computers.
For more control and faster speeds, Syncthing and Resilio Sync are free tools that sync folders between computers automatically. Both work across networks and keep files in sync whenever either computer changes them. These are more complex to set up but useful if you regularly move files between the same two computers.
Sending files through messaging apps
WhatsApp, Telegram, Signal, and similar apps let you send files directly to a person or group. The file size limit varies — WhatsApp allows up to 100 MB per file, Telegram allows up to 2 GB. The file is encrypted in transit and stored on the recipient's phone or computer.
The advantage is that you don't need a separate service or account — if you already message the person, you can send the file the same way. The disadvantage is that the file stays in the chat history unless you delete it, and both people need the same app. Open the chat, tap the attachment button (usually a plus sign or paperclip), select the file, and send it.
Choosing based on file size and privacy
| Method | File Size Limit | Requires Account | File Stays Accessible | Best For |
|---|---|---|---|---|
| 25–50 MB | Yes (email) | No | Small documents and spreadsheets | |
| Google Drive / Dropbox | Up to your storage limit | Yes (both people) | Yes | Files you want to keep sharing or editing |
| WeTransfer | 2 GB (free) | No | No (expires in 7 days) | One-time sends to people without accounts |
| Messaging apps | 100 MB – 2 GB | Yes (app account) | Yes (in chat) | Quick sends to people you already message |
| Local network transfer | Unlimited | No | No (direct copy) | Large files between computers on same WiFi |
Frequently Asked Questions
What's the fastest way to send a 5 GB file?
If both computers are on the same WiFi network, direct transfer is fastest — enable Network Discovery on Windows or use Syncthing on either system. If you have to send over the internet, upload to Google Drive or Dropbox and share the link. WeTransfer's free tier caps at 2 GB, so you'd need their paid plan or a different service for 5 GB.
Can I send a file larger than my email provider's limit?
Yes. Compress the file first to see if it fits under the limit. If not, upload it to Google Drive, Dropbox, or OneDrive and send the recipient a link instead. You can also use WeTransfer or a similar service, though you may need to pay for larger file sizes.
Is it safe to use WeTransfer or similar services?
WeTransfer encrypts files in transit and deletes them after seven days, which is reasonably secure for non-sensitive files. If you're sending confidential information, use a service with end-to-end encryption like Tresorit or Signal, or transfer files directly between computers on the same network.
Why is my file taking so long to upload?
Upload speed depends on your internet connection, not the service. Check your WiFi signal strength or move closer to the router. If you're on a slow connection, compress the file first or use a local network transfer if both computers are on the same WiFi. Uploading at off-peak hours (late night or early morning) can also be faster.
What happens to files after I delete them from Google Drive?
They go to your Trash folder and stay there for 30 days before permanently deleting. If you shared a link with someone, they can still download the file during those 30 days. To stop them from accessing it immediately, open the sharing settings and click "Remove access."