End-to-end encrypted UP TO 3 GB / 7 DAYS — FREE

Secure file transfer
for client work.

Send contracts, deliverables, videos, and sensitive documents with end-to-end encryption, expiring links, and download tracking. No account required.

Browser-side encryption No recipient account Expiring links Download tracking
FILES
TEXT
KEY/VALUE
P2P

DROP FILES HERE

or click to browse — any size, any type

0 characters

TRANSFER SETTINGS

Link Expires After
1H
24H
3D
7D
14D
30D
90D
CUSTOM
Max Downloads (0 = unlimited)
TRANSFER COST
FREE
NOTIFY VIA EMAIL
Your Email (sender confirmation)
Recipient Emails (up to 10)

ENCRYPTING & UPLOADING

Preparing...

TRANSFER READY

OK
Share Link (copy & send)
-
Files
-
Expires
Max DLs
VIEW TRACKING →

Why SecureTransfer?

🔐 True Encryption

Files are encrypted with AES-256-GCM in your browser before they leave your device. The encryption key lives only in the share link — our servers never see it.

👁 Zero Knowledge

We physically cannot read your files. The decryption key is in the URL fragment, which browsers never send to the server. Not even a court order could make us hand over readable data.

⚡ No Account Needed

Drop files, set expiry, share the link. No sign-up, no email verification, no waiting. Send encrypted files in under 30 seconds.

📦 Client Delivery

Send client files with expiring links, download tracking, and no account friction for the recipient.

How does the encryption work?

When you upload files, your browser generates a random 256-bit AES-GCM key. Each file is encrypted locally using the Web Crypto API — the same standard used by banks and governments.

Only the encrypted version leaves your device. The key is appended to the share URL after the # symbol — this is the URL fragment, and browsers never send fragments to servers in HTTP requests.

When the recipient opens the link, their browser reads the key from the fragment, downloads the encrypted file, and decrypts it locally. End to end — no middleman ever sees the content.

SecureTransfer vs other services

SecureTransfer WeTransfer Google Drive
End-to-end encrypted ✅ Yes ❌ No ❌ No
Zero knowledge ✅ Yes ❌ No ❌ No
No account needed ✅ Yes ✅ Free tier ❌ No
Free tier 3 GB / 7 days 2 GB / 7d 15 GB (stored)
Provider can read files ❌ Impossible ✅ Yes ✅ Yes
P2P direct transfer ✅ Yes (WebRTC) ❌ No ❌ No
Open source ✅ Yes ❌ No ❌ No

Who is it for?

Freelancers

Deliver files to clients without Drive permission issues, account friction, or long-lived public links.

Agencies

Send reports, creative assets, videos, and project handoffs through professional encrypted links.

Consultants

Share confidential reports and client documents with expiry, tracking, and a clean download flow.

Legal & accounting

Send sensitive client files with browser-side encryption, expiring links, and controlled downloads.

Remote Teams

Transfer files privately between colleagues, with optional P2P for direct browser-to-browser delivery.

Popular secure file transfer guides

Secure file transfer

Encrypted links, expiry, and download limits.

Encrypted file sharing

How browser-side encryption works.

Private file sharing

Share without provider access to contents.

Send sensitive documents securely

Contracts, tax files, and confidential records.

For freelancers

Professional client deliverable delivery.

For agencies

Client assets, reports, videos, and handoffs.

Client file delivery

A repeatable private delivery workflow.

WeTransfer alternative

A familiar flow with E2E encryption.

Read more on our blog

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