
Tresorit Send
Send big files up to 5GB securely, fast, and free
About Tresorit Send
Tresorit Send is a free, end-to-end encrypted file transfer service from Swiss privacy company Tresorit. It lets anyone share files up to 5GB without creating an account, using AES-256 client-side encryption with password protection, link expiration, and revocable share links.
Pros & Cons
Pros
- Strong AES-256 end-to-end encryption with zero-knowledge architecture
- No account or sign-up required to send files
- Generous 5GB per-transfer limit for a free tool
- Password protection, expiration, and revocation built in
- Swiss jurisdiction and independently audited security
- Clean, friction-free browser-based sending experience
Cons
- 5GB ceiling is lower than WeTransfer Pro or Smash for very large transfers
- Share links cannot be edited after creation — must recreate to fix mistakes
- Analytics limited to basic download notifications
- Upgrading to full Tresorit cloud storage is expensive compared to Dropbox or OneDrive
Key Features
End-to-End Encryption
AES-256 client-side encryption means files are encrypted on your device before upload, and Tresorit never sees the decryption key.
5GB File Transfers
Send a single file or folder up to 5GB in size — enough for most video, archive, and dataset transfers.
Password Protection
Add an optional password to any share link so only recipients with the password can download.
Link Expiration
Set an expiry date on every link; files and metadata are permanently removed 14 days after expiry.
Download Notifications
Get email alerts when recipients open or download your shared files.
Link Revocation
Instantly revoke access to any share link, even after it has been distributed.
No Account Required
Anyone can send files without signing up — just drop a file in the browser and share the link.
Zero-Knowledge Architecture
Tresorit's independently audited zero-knowledge model means the company cannot access the contents of your transfers.
Swiss & EU Data Residency
Servers located in Switzerland and the EU, governed by strict Swiss privacy law and GDPR.
Pricing
- Up to 5GB per transfer
- End-to-end AES-256 encryption
- Password protection on links
- Link expiration settings
- Download notifications
- Link revocation
- No account required
Best For
Sharing confidential documents with clients
Lawyers, accountants, and consultants can send contracts, tax returns, or NDAs with end-to-end encryption and password gates instead of unsecured email attachments.
Sending large creative assets
Designers, video editors, and photographers can ship multi-gigabyte raw files or project bundles without needing a paid WeTransfer subscription.
Transferring sensitive personal files
Anyone can send medical records, identity documents, or financial paperwork to family or professionals without leaving a copy on a cloud provider.
Ad-hoc secure B2B handoffs
A free, no-account tool for one-off secure file transfers between organizations where setting up a shared drive is overkill.
Similar Tools

Proton Mail
Secure, privacy-first email built in Switzerland

Tuta
Secure email with quantum-resistant encryption

Mailfence
Secure and private email with integrated productivity

StartMail
Private email from the makers of Startpage

Fastmail
Fast, private email that puts you in control

Runbox
Privacy-focused email hosting powered by Norwegian renewable energy
Ready to try Tresorit Send?
Start using Tresorit Send today and boost your productivity.
Visit Website