Synology C2 Transfer | Better and safer large file transfer

A better way to send files

Break free of the limitations of email clients and chat services, and start sending files more conveniently and securely.

Send large files

Say goodbye to transfers failed due to size limitations. C2 Transfer helps you focus on what truly matters, spending less time on technical issues.

Keep control over your files

Restrict recipients' access to the files by setting expiration dates and download limits, ensuring control over your important documents at each stage of the process.

As intuitive as it gets

Receive and request files from anyone by sending them a simple and secure link. Transfers are secure, as all files are encrypted before being sent.

File transfer

Sender

Upload the files, select who can access them, and share the transfer link.

Recipient

Open the link, verify your identity through a one-time password (OTP), and download the files.

File request

Requester

Select who you wish to receive files from and share the transfer link.

Sender

Open the link, verify your identity through a one-time password (OTP), and upload the files.

Watermarks

Tighten control over documents and minimize the risk of data leaks with intuitive content protection features.

Protect your privacy

Add watermarks with text, an image, or the receiver’s email address to photos and PDF documents.

Simple setup

Apply watermarks to multiple files at once, eliminating repetitive work and speeding up the transfer process.

Integrate with Outlook

Enable seamless and secure document sharing on Microsoft Outlook with C2 Transfer.

Overcome email limitations

Go beyond what you can do with email attachments and share files without worrying about size limitations.

Create sharing links easily

Leverage C2 Transfer's simple and secure sharing process to send traceable sharing links in seconds.

Keep task statuses in check

Centrally monitor task statuses from the web portal. Get notified via emails whenever there are new task activities.

Task status monitoring

Check how many times recipients have accessed the files and more details for file request tasks.

Email notifications

Receive an email notification whenever a transfer task is opened and a file is downloaded or uploaded.

Administrative features

Manage users from a single, unified console.

User management

Quickly add or remove members from the team. Centrally monitor members' active tasks.

Transfer policies

Easily comply with corporate regulations by setting policies for each transfer task, including allow or blocklists and shared watermarks.

Security is our top priority

Achieve peace of mind knowing that only you and those you trust can access your private information on C2 Transfer.

End-to-end encryption

All data is protected through AES-256 encryption before it even leaves your device. Data traveling to and stored on C2 servers is fully encrypted, achieving comprehensive protection throughout the entire process.

Designed for security

The key used to encrypt and decrypt data is stored on your devices and is never shared with Synology C2 servers.

Customer stories

See how these organizations achieved more with Synology.

"C2 Transfer's interface is simple and intuitive, allowing easy and secure file sharing. Implementing the service allows us to track file download progress in real-time, while also aiding our company's compliance with cyber security regulations."

Sih Sîng-hông, CEO, ÌTHUÂN KHOKI

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"C2 Transfer’s end-to-end encryption helps our organization upload confidential files to external servers more securely. In addition, one-time password protection through email or phone further reduces our worries about data leaks."

KL, Product Manager, Ganzin Technology Inc.

Additional resources

Check our security white paper, product tutorials, FAQs, and blog posts about online file transfer.

Security white paper

We build secure and robust cloud services. See our white paper for more information on our infrastructure, key security measures, and how we protect your data.

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Tutorials & FAQ

Check these how-tos and frequently asked questions to help you get started faster with C2 services.

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Blogs

Secure File Sharing: How to Keep Your Company’s Documents Safe
“E-mail attachments may not be as safe as you think” — comprehending the drawbacks of e-mail file transfers
Send crucial documents with C2 Transfer and Adobe Reader’s e-signature

Take no risks with file transfers

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