Key Takeaways
- Gmail, Outlook, and Yahoo all reject attachments larger than 25 MB, so files bigger than that need cloud storage or a transfer service instead.
- Google Drive, OneDrive, and Dropbox let you upload a file once and share a link, which works for recipients who don't have accounts with those services.
- Dedicated file transfer sites like WeTransfer and Tresorit handle very large files (up to several gigabytes) and delete them automatically after a set time.
- The recipient's internet speed matters more than the file size — a 2 GB video takes longer to download on slow connections, regardless of the service you use.
When Email Attachments Still Work
Email is the fastest option if your file is under 25 MB. Gmail, Outlook, Yahoo, and most other email providers accept attachments up to that size without any extra steps. Just click the attachment button, select your file, and send — the recipient gets it in their inbox like any other email.
Files between 15 MB and 25 MB sometimes take longer to upload or download, especially on slower internet connections. If you're on a phone or tablet with a weak signal, a smaller file will be more reliable. For anything under 10 MB, email is almost always the simplest choice.
Using Cloud Storage to Share Links
Google Drive, OneDrive, and Dropbox all let you upload a file once and send a shareable link instead of an attachment. The recipient clicks the link and downloads the file directly — they don't need a Google, Microsoft, or Dropbox account to access it. This works for files of any size.
To share from Google Drive: upload your file, right-click it, select "Share," change the permission to "Viewer," and copy the link. Send that link in an email or message. The recipient can download it immediately or view it in their browser without downloading.
OneDrive and Dropbox work the same way. OneDrive is built into Windows and Outlook, so it's already there if you use Microsoft products. Dropbox is separate but works on any computer or phone. All three services give you a few gigabytes of free storage, which is enough for most people's occasional large file sharing.
The main trade-off is that the file stays on the internet until you delete it. If you want the file to disappear automatically after a few days, a dedicated transfer service is better.
File Transfer Services for Temporary Sharing
WeTransfer, Tresorit, and similar services are designed specifically for sending large files that you don't want to keep online. You upload the file, enter the recipient's email address, and the service sends them a download link. The file usually deletes itself after 7 to 14 days, depending on the service.
WeTransfer is free for files up to 2 GB and is the most popular choice. You don't need an account — just go to wetransfer.com, drag your file into the box, type the recipient's email, and send. They get a link in their inbox within seconds.
Tresorit is more secure and encrypts your file before uploading, but it's slower and has a smaller free limit (5 GB per month instead of per transfer). Use Tresorit if you're sending sensitive documents; use WeTransfer if you just want speed.
These services work best for one-time sharing. If you need to send files to the same person repeatedly, cloud storage is more convenient because the files stay accessible.
Sending Files Over Messaging Apps
WhatsApp, Telegram, Signal, and iMessage all let you send files directly through the app. The size limit varies — WhatsApp caps files at 100 MB, while Telegram allows up to 2 GB. The file goes to the recipient's phone or computer instantly if you're both online.
This only works if you and the recipient both use the same app. It's also not ideal for very large files because the transfer uses your phone's data or WiFi, and if the connection drops, you have to start over. For files under 50 MB that you're sending to someone you message regularly, it's convenient.
Direct Upload to a Website or Service
Some websites and services let you upload files directly to them instead of sending them elsewhere first. Slack, Discord, and Microsoft Teams all accept file uploads in chat, with limits ranging from 100 MB to several gigabytes depending on your plan. Google Photos, YouTube, and Vimeo let you upload video files directly.
This is the fastest option if the recipient is already using that service. You upload once, they see it immediately in the chat or folder. No link to copy, no email to send — it's just there.
The downside is that both people need accounts on that service. If you're sending to someone outside your workplace or friend group, they may not have one.
Comparing Speed and Reliability
How fast a file transfers depends mostly on your internet upload speed and the recipient's download speed, not on which service you use. A 500 MB file on a 5 Mbps connection takes about 15 minutes to upload, whether you're using Google Drive, WeTransfer, or email. The service itself adds only a few seconds.
Cloud storage and transfer services are more reliable for very large files because they resume automatically if your connection drops. Email and messaging apps usually require you to start over if the upload fails halfway through.
For files larger than 5 GB, cloud storage is more practical than transfer services because transfer services may time out or have size limits. Google Drive and OneDrive both handle files up to 5 TB (though uploading that much takes days).
Frequently Asked Questions
Can I send a file larger than 5 GB?
Yes, but it requires cloud storage or a service designed for very large files. Google Drive, OneDrive, and Dropbox all accept files up to 5 TB. The upload will take a very long time on a home internet connection — a 10 GB file typically takes 2 to 4 hours. Dedicated transfer services like Tresorit handle up to 5 GB per transfer.
Is it safe to use WeTransfer or similar services?
WeTransfer and most transfer services use encryption while the file is in transit, but they don't encrypt it on their servers by default. If you're sending sensitive documents, use Tresorit or enable password protection on the link. For personal photos or non-confidential files, standard transfer services are fine.
What happens if the recipient doesn't download the file in time?
On transfer services like WeTransfer, the file deletes automatically after 7 to 14 days. On cloud storage like Google Drive, the file stays there until you delete it. If you want to be sure the recipient downloads it, set a reminder to check back in a few days.
Can I send a file to multiple people at once?
Yes. On Google Drive, OneDrive, and Dropbox, you can share the same link with multiple people. On WeTransfer, you can enter multiple email addresses and they all get the same download link. This is faster than sending the file separately to each person.
Why does my file keep failing to upload?
Slow or unstable internet is the most common reason. Try uploading over WiFi instead of mobile data, or wait until your connection is stronger. If the file is extremely large (over 10 GB), your browser may time out — use cloud storage instead, which handles interruptions better.