Quick answer: For two Macs side by side, AirDrop is simplest; a Thunderbolt or USB-C cable with File Sharing is fastest for hundreds of gigabytes. For a Mac elsewhere, upload the files at Share Large Video Files (up to 20 GB per transfer) and send the link. The other Mac downloads exactly the same bytes.
Built-in options, and their limits
AirDrop sends between nearby Macs from Finder or the Share menu.
File Sharing (System Settings > General > Sharing) shares folders over the local network; connect a Thunderbolt or USB-C cable between the Macs and the connection runs over that cable, which is much faster than Wi-Fi.
Migration Assistant copies an entire Mac (apps, accounts and files) to a new one. iCloud Drive syncs files if both use the same Apple Account and you have the storage.
Send any size from Mac to Mac with a link
- Open Share Large Video Files on the sending Mac and drag the files or a zipped folder onto the page.
- Add a password under More options if the files are private.
- Copy the link and send it by Messages, Mail or Slack.
- On the other Mac, open the link and click Download; ZIP files open with a double-click.
Things that trip people up
- Final Cut Pro and Logic projects are packages (folders that look like files). Zip them before uploading so they arrive intact.
- iCloud Drive with Optimise Mac Storage may show files that are not actually on the Mac yet. Make sure a file has downloaded before you send it.
- AirDrop between Macs signed in to different Apple Accounts needs "Everyone" or a contact match on the receiving Mac.
Which method for how much data
| Amount | Macs together | Macs apart |
|---|---|---|
| Up to a few GB | AirDrop | Download link |
| Tens of GB | AirDrop or a cable | Download link on a fast upload, or a drive by courier |
| A whole Mac | Migration Assistant | Time Machine backup on a drive |
Check how long the upload will take with the upload time calculator.
Frequently asked questions
What is the fastest way to copy files between two Macs?
A Thunderbolt or USB-C cable between them with File Sharing on. Wi-Fi and AirDrop are slower for hundreds of gigabytes.
How do I send a Final Cut Pro library?
Zip the library (it is a package) or use File > Consolidate first, then upload the ZIP. The other editor unzips and opens it.
Should I use Migration Assistant?
Only to set up a new Mac with everything from the old one. For some files, AirDrop, a cable or a link is simpler.
Can I send to a Mac in another country?
Yes. Upload once and send the link; there is no size limit per country, and Share Large Video Files takes up to 20 GB per transfer.
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