Secure File Sharing & Messaging Made Simple

Share sensitive files and encrypted messages with confidence. RheoSend provides end-to-end encryption that ensures only your intended recipients can access your data — not even we can see it.

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Why Choose RheoSend?

Secure file sharing and messaging that prioritizes privacy and simplicity

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True Privacy

Unlike other services, only you and your authorized recipients can access your files and messages — we can't see your data.

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No Account Needed

Recipients don't need to create an account. If they can use a web browser, they can access your secure messages and files.

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Effortless Sharing

No software to install. Share files and messages with anyone, anywhere, with just a few clicks.

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Auto-Delete

Files and messages are permanently deleted after viewing, ensuring your sensitive information doesn't linger.

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Automation

With our RheoWorx offering, your shared files can be input for advanced workflows that automate important business processes.

Encrypted Messaging

Encrypted Messaging

RheoSend isn't just for files. Send fully encrypted messages with or without sending files.

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Send private messages that only your recipients can read

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Know when your recipients read their messages

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Set expiration times for messages to auto-delete after viewing

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Access your secure messages on any device with a modern browser

Advanced Security

Military-Grade Security

RheoSend employs AES-256 encryption — the same standard trusted by governments and financial institutions worldwide.

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Hardware security modules for uncompromised protection

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End-to-end encryption keeps your data and messages private

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Zero-knowledge architecture — we can't access your files or messages

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Secure document viewer stores no temporary data on device

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Automatic deletion after viewing for complete peace of mind

Ready to communicate securely?

Join thousands of businesses and individuals who trust RheoSend with their sensitive information and private communications.

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Frequently Asked Questions

Everything you need to know about RheoSend

Unlike email or standard messaging apps, RheoSend provides true end-to-end encryption for both files and messages. Your communications are secure from interception, with no size limits on files, and messages automatically delete after viewing to prevent unauthorized access.

Absolutely! RheoSend allows you to send fully encrypted messages with or without file attachments. Your text messages receive the same military-grade encryption as your files, ensuring completely private communications.

Your files and messages are stored only until they're viewed by your intended recipient, after which they're permanently deleted from our servers. You can also set custom expiration times for particularly sensitive communications.

No! Recipients don't need to create an account to access files or messages shared with them. They simply need to use the secure link you provide, making it effortless to communicate securely with anyone.

Our base plan includes generous messaging limits, and our premium plans offer unlimited secure messaging. Contact our sales team for enterprise solutions with custom volume requirements.

What Our Users Say

"As a law firm handling sensitive client information, security is our top priority. RheoSend gives us peace of mind knowing our documents and client communications are protected with enterprise-grade encryption."

— Sarah J., Legal Professional

"The secure messaging feature is a game-changer. I can share financial documents and discuss sensitive details with clients without worrying about security risks. My clients love that they don't need to create an account."

— Michael T., Financial Advisor

"We use RheoSend to share sensitive patient information and coordinate care between facilities. The encrypted messaging ensures we maintain HIPAA compliance while streamlining our communication workflows."

— Dr. Rachel K., Healthcare Administrator

Experience secure communication today

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