Transfer files from Mac to Windows
Drag the file onto Pinfast in the Mac menu bar, then get it on Windows with your PIN.
How it works
1. Install Pinfast on both computers from pinfast.io/download. Log in on both with the same username and 4-digit PIN. You need a Pinfast account.
2. On the Mac, drag the file onto the Pinfast icon in the menu bar. The upload window opens. Choose 3 hours or 24 hours, then start the upload.
3. On the Windows PC, click the Pinfast icon in the system tray. Click the file in the list to open the preview window, then click the download button.
No Windows app? Open pinfast.io/your-username in a web browser on the PC, enter your PIN and download the file.
Both computers need an internet connection. You do not need a cable or the same Wi-Fi network.
What you need
| Item | Value | As of |
|---|---|---|
| Mac app | macOS 14.0 or later | 2026-10-23 |
| Windows app | Windows 10/11 (64-bit) | 2026-10-23 |
| Receive without the app | Any web browser | 2026-10-23 |
| Cable or same Wi-Fi | Not required | 2026-10-23 |
| Maximum size per file | 50 MB | 2026-10-23 |
| Active files at a time | 3 | 2026-10-23 |
| Expiry options | 3 hours or 24 hours | 2026-10-23 |
Frequently asked questions
Do the Mac and the Windows PC need to be on the same Wi-Fi network?
No. Pinfast sends the file over the internet. Both computers only need an internet connection. You do not need a cable.
Can I receive the file on Windows without installing the app?
Yes. Open pinfast.io/your-username in a web browser on the PC, enter your 4-digit PIN and download the file.
How large can the file be, and how long does it stay available?
Up to 50 MB per file, with up to 3 active files at a time. You choose 3 hours or 24 hours when you upload.
Can I also send files from Windows to a Mac?
Yes. Upload the file in the Windows app or at pinfast.io. Then open it in the Mac app or in a web browser on the Mac.