Step by step
Check how big the file is
Look at the size in File Explorer, Finder, or your phone's file details. The number decides which method fits.
Pick a method that fits the size and situation
Under 20 MB, email is fine. Up to a few gigabytes, a transfer link is usually easiest. Bigger than that, look at services with higher caps or a cloud drive.
Upload the file or folder
With Enzonic Send, drag the file or folder into the uploader. Folders are zipped in the browser and keep their structure.
Set expiry and protection
Choose how long the link should work and add a password or download limit if the file is private.
Share the link, code or QR code
Paste the link into email or chat, read out the 6-digit code, or let someone nearby scan the QR code.
"Large" means different things depending on where you are trying to send a file. For email, anything over about 20 MB is large. For a messaging app, it might be a few hundred megabytes. For a video editor handing off a project, it can be tens of gigabytes. This guide walks through every free option, starting with the quick question of size.
Start with the size
Find out exactly how big the file is before choosing a method:
- Windows: right-click the file or folder in File Explorer and choose Properties.
- Mac: select it in Finder and press Command-I.
- iPhone/iPad: in the Files app, long-press and choose Get Info. In Photos, swipe up on a video to see details.
- Android: in Files by Google or your gallery app, open the file's details or info panel.
Then use this rough map:
| File size | Simplest free method |
|---|---|
| Under 20 MB | Email attachment |
| 20 MB to 500 MB | Transfer link, no account needed on most services |
| 500 MB to 2 GB | Transfer link, sometimes with a free account |
| 2 GB to roughly 50 GB | Transfer services with higher free caps, or a cloud drive |
| Larger than that | Cloud drive with paid storage, peer-to-peer tools, or a physical drive |
The rest of this guide explains each method so you can pick with confidence.
Method 1: Email attachments (for small files only)
Email is still the default for many people, and for small files it is fine. The limits at the time of writing:
- Gmail: 25 MB per message. Bigger files are turned into a Google Drive link. Details in Gmail attachment size limit.
- Outlook.com and Outlook desktop: 20 MB typical. Work accounts may differ. See Outlook attachment size limit.
Attachments are encoded for transport, which inflates them by about a third, and the recipient's server may have a lower limit than yours. In practice, keep email attachments under about 15 to 20 MB. For anything bigger, send a link in the email instead. The files too big for email page covers this in more depth.
Method 2: Transfer links (the usual answer)
Transfer services are built for exactly this job: upload a file, get a link, send it. The recipient downloads from the link in any browser. No shared folders, no permissions to fiddle with.
This is what Enzonic Send does:
- Drag a file or a whole folder onto the uploader at the top of this page. Multiple files and folders are zipped in your browser, with the folder structure kept. Single files are sent as-is.
- Choose an expiry: 1 hour, 1 day or 3 days anonymously, or up to 7 days with a free account.
- Optionally add a password, a download limit (1, 5, 10, 50 or 100), and a title and message.
- Share the link, the 6-digit code, or the QR code.
The recipient opens the link, or types the code at send.enzonic.com/receive. Files are stored on Cloudflare's network, so you can close your tab after uploading. Everything is deleted automatically at expiry, and you can delete the transfer yourself earlier.
Where it fits: up to 500 MB without an account, 2 GB per transfer with a free account. It is free because it is ad-supported.
Where it does not: if you regularly send files over 2 GB, or need a link to last longer than 7 days, other services have higher caps. The free file transfer services compared page lays out the options side by side, including SwissTransfer, Smash and others.
Related guides for specific sizes: send a 500 MB file, send a 1 GB file, send a 2 GB file.
Method 3: Cloud drives
Google Drive, OneDrive, Dropbox and iCloud Drive all let you upload a file and share a link. They make sense when:
- the file should stay available long-term,
- you are collaborating on it and will update it,
- the recipient already uses the same service.
Trade-offs to keep in mind:
- The file uses your storage quota until you delete it, and free tiers fill up quickly with video.
- Sharing settings need care. A restricted link sends the recipient to an access-request page. An open link can be forwarded indefinitely.
- Nothing expires by default on most drives, so old files with personal data tend to linger.
For a one-time handoff, a transfer link is usually less work. For an ongoing shared folder, a cloud drive is the better tool.
Method 4: Peer-to-peer and local transfer
Peer-to-peer tools send the file directly from one device to another. Examples include AirDrop (Apple devices only), PairDrop (open source, works in a browser on the same network or by pairing), and Send Anywhere's 6-digit key mode.
Strengths:
- Often no size cap from a server, since nothing is stored.
- Very fast on the same Wi-Fi network.
Limitations:
- Both devices must be online at the same time, and the sender usually has to keep the page or app open until the transfer finishes.
- Some only work on the same network or the same platform.
If you want AirDrop-style convenience across platforms, see AirDrop for Windows and the AirDrop alternative guide. The difference with Enzonic Send is that the file is uploaded first, so the other person can download it later, even from a different network.
Method 5: Zipping and splitting
Zipping bundles many files into one, and splitting cuts a big archive into smaller parts.
When zipping helps:
- Folders of documents, spreadsheets, code or text files, which can shrink considerably.
- Sending many files as one download.
When it does not:
- Photos (JPEG, HEIC), video (MP4, MOV), music (MP3, AAC) and most PDFs are already compressed. Zipping them saves very little.
Splitting into parts lets you squeeze a big file through email, but the recipient needs every part, in order, plus software that can join them. One lost email breaks the set. It is a last resort.
You do not need to zip folders yourself for Enzonic Send: drag the folder in and it is zipped in the browser. More in send a zip file, send a folder online and send multiple files.
Device-specific tips
iPhone and iPad
- In Safari, tap the uploader and choose Photo Library for camera videos, or Choose File for anything in the Files app.
- Photos picked from the library may be converted from HEIC to JPEG by iOS depending on your settings. If you need the original HEIC or ProRes file, save it to Files first and pick it from there.
- Keep the screen on while a large upload runs; iOS can pause background browser tabs.
- Guides: send video from iPhone, iPhone to PC, iPhone to Android.
Android
- In Chrome, tap the uploader and use the system file picker. Camera files are usually in DCIM/Camera.
- Use Wi-Fi for big uploads to avoid mobile data charges.
- Guides: Android to PC, Android to iPhone.
Windows and Mac
- Drag files or folders straight from File Explorer or Finder onto the uploader.
- Plug in a laptop for long uploads so it does not sleep mid-transfer.
- Guides: Mac to Windows, phone to laptop.
Mobile apps
Enzonic Send also has Android and iOS apps with QR scanning, listed on the apps page. Handy if you send from your phone often.
Keeping large files private
Large files often contain the most sensitive material: raw footage, scanned documents, backups. A few habits help:
- Short expiry. Pick the shortest window that works. Files are deleted automatically when it ends.
- Password. Share it by a different channel from the link, such as a phone call or text.
- Download limit. Set it to 1 if only one person should get the file.
- Delete when done. You can remove a transfer at any time.
Enzonic Send encrypts files in transit (TLS) and at rest. It is not end-to-end encrypted, so for highly sensitive or regulated data, use your organisation's approved tools. See password-protected file sharing and expiring file links.
Common problems and fixes
The upload is slow. Upload speed depends on your connection, and home internet often uploads much slower than it downloads. Use a wired connection or sit closer to the router.
The upload failed partway. Uploads do not resume after a dropped connection, so restart it on a stable network. For very large files on flaky connections, a smaller batch at a time is safer.
The recipient cannot open the file. It may be a format their device does not support, such as HEVC video on an older PC or a RAW camera file. That is a format issue, not a transfer issue. See send RAW photos and send large video files.
The link expired. Upload again with a longer expiry. Signed-in users can choose up to 7 days.
Which method should you use?
- Small document to a colleague: email it.
- Video, photo set or folder up to 2 GB, one-time handoff: a transfer link. Try the uploader at the top of this page.
- No account, under 500 MB: a transfer link with no signup. See send files without signup.
- Over 2 GB: a service with a higher free cap or a cloud drive. Compare them in free file transfer services compared.
- Ongoing collaboration: a shared cloud drive folder.
- Two devices in the same room: scan a QR code, or use a local peer-to-peer tool. See send files with a QR code and share files with a code.
If you came here from a specific app, the limit guides for Discord and WhatsApp explain those platforms' quirks.
FAQ
What is the easiest free way to send a large file?
For most files up to a couple of gigabytes, a transfer link is easiest: upload, copy the link, send it. The recipient downloads in their browser without installing anything.
How can I send a file that is too big for email?
Upload it to a transfer service or cloud drive and email the link instead. Email providers cap attachments at around 20 to 25 MB at the time of writing.
Can I send a large file without creating an account?
Yes. Several services work without an account. Enzonic Send allows up to 500 MB per transfer with no account, and 2 GB with a free one.
Do both people need to be online at the same time?
Only with peer-to-peer tools. Upload-based services, including Enzonic Send, store the file so the sender can close the tab and the recipient can download later.
Does zipping make files smaller?
It depends on the content. Documents and text shrink a lot, but photos, videos and music are already compressed and barely change.
What is the safest way to send large files?
Use a service with encryption, add a password shared through a separate channel, set a short expiry and a download limit. For sensitive work data, follow your organisation's approved tools.
Updated 2026-10-17