Transfer size limits
| Plan | Max transfer size | Max recipients per transfer |
|---|---|---|
| Free | 100 GB | 6 |
| Personal | 100 GB | 20 |
| Pro | 1 TB | 50 |
| Business | 1 TB | 100 |
The 1 TB limit applies to a single transfer. There is no cap on total storage across your account on paid plans — check your plan details for specifics.
Create a new transfer
Open the New Transfer dialog
From your Sinosend dashboard, click New Transfer in the top-right corner. The upload panel slides open in the centre of the screen.
Add your files
Drag and drop files or entire folders onto the upload area, or click Browse files to open your system file picker. You can add as many files and folders as you need in one transfer — there is no per-file limit on count.
Add recipients
Type each recipient’s email address in the To field and press Enter or , to confirm. Repeat for each person. You can also skip this field and share the transfer link manually after sending.
Configure optional settings
Expand Options to access the following controls:
- Password — enter a password recipients must type before viewing files.
- Expiry date — pick a date from the calendar; the link deactivates automatically at midnight on that date.
- Personal message — add a note that appears in the delivery email and on the download page.
- Data residency — choose the region where your files are stored (see Data Residency for available regions).
Upload behaviour
Drag-and-drop and folder uploads
You can drag files directly from your desktop, file manager, or another browser window. Drop a folder and Sinosend recursively uploads all its contents, keeping subdirectory structure intact.Resume on connection drop
If your internet connection drops mid-upload, Sinosend automatically resumes from where it left off when connectivity is restored. You do not need to restart the upload or re-select files.Resume works within the same browser session. If you close the browser tab before the upload completes, you will need to start a new transfer.
No throttling
Sinosend does not artificially cap your upload or download speed. Transfers run at the full speed your connection allows, with intelligent routing selecting the lowest-latency path between you, Sinosend’s infrastructure, and your recipient’s location.How recipients experience your transfer
Zipless downloads
Recipients land on a clean download page showing every file individually — no ZIP archive to unpack. They can download all files at once or cherry-pick specific files without touching the others.In-browser previews
The following file types render directly in the browser, with no download required:| Category | Supported formats |
|---|---|
| Documents | PDF, Word (.docx), Excel (.xlsx), PowerPoint (.pptx) |
| Video | MP4, MOV, WebM |
| Images | PNG, JPG, GIF, WebP, SVG |
Security options
Password protection
When you set a password on a transfer, recipients see a password prompt before they can view or download any files. You can add, change, or remove the password after sending without generating a new link.Expiry dates
Set an expiry date to automatically deactivate the transfer link on a specific day. Recipients who try to access the link after it expires see a polite expiry message. You can extend or shorten the expiry from the dashboard at any time.Data residency
Select which geographic region Sinosend stores your files in at the time of sending. This is useful for regulatory compliance (for example, keeping EU customer data inside the EU). See Data Residency for the full list of available regions.Sending via link vs. email
You have two ways to share a transfer:- Email delivery — add recipient email addresses before clicking Send. Sinosend emails each recipient directly with the link, your personal message, and file details.
- Direct link — leave the recipient field empty. After sending, copy the transfer link from your dashboard and share it however you like — via WhatsApp, Slack, your own email, or a QR code.