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Why Cypherdog?



Send e-mail securely

Secure your messages and attachments by encrypting and decrypting any part of your text and file that can be sent via e-mail (or any media). Be assured that only the authorized recipient has access to your content.

One click. Complete protection.


Transfer files securely

If you encrypt a file with Cypherdog E-mail Encryption, you can send it via any communication channel. Include the contact details (like e-mail addresses) of those who should receive the file once encrypted.

You can be sure that only the intended recipient is able to decrypt the file that you can send or share via any medium: Slack, WeTransfer, Google Drive, WhatsApp, Dropbox, etc.


Encrypt files locally on your device

Cypherdog E-mail Encryption allows you to encrypt any file, regardless of format or size. You can encrypt only for yourself if you store files on your hard drive or for anyone else that you intend to share files with.

We use asymmetric encryption, which means the application recognizes who it is encrypting for. Therefore, you should select the recipient's ID (e-mail address) before sending anything out.


Encrypt and share text securely

Cypherdog E-mail Encryption enables you to encrypt any text using any medium, including messengers or other platforms, and share it securely with anyone you want to.

We use the RSA algorithm, which means our tool should know who to encrypt it for, thus you should pick out the ID (e-mail address) of the recipient you plan to share the text with.







• Encryption and decryption of e-mail messages and attachments
• Encryption and decryption of any text and file that can be sent by any platform
• Backup of private key to file
• One license for single user
• Support for Gmail & Google Suite: plugin to browsers Microsoft Edge, Mozilla Firefox, Google Chrome, Thunderbird
• Support for Microsoft Outlook (add-in for web and native client)
• Support for operating systems (Windows, Linux, MacOS)
• Basic online support and training

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• Admin panel for domains, user & private keys management
• Backup of private keys on Vault installed on company servers
• Automatic installation on endpoints
• One license for multiple users
• Advanced support and training

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Cypherdog provides


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Are you not sure which offer is right for you?

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Everything in our ecosystem will be transacted in $CDOG

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Everything in our ecosystem will be transacted in $CDOG

Learn more about Token






Check which media wrote about our company and project!


Find out more about our company


  • The protection of our customers' data, including the personal data of our employees, is a very important measure that ensures our credibility and trust. For this reason, we decided to use Cypherdog - a tool for ultra-secure transfer and storage of confidential data. The use of data encryption tools is also a manifestation of the EIC / ISO 27001 information security management standard in securing key processes in an organization - and Motivizer has recently been certified to this standard.
    Paweł Filutowski
    CEO, Motivizer
  • As part of our business activities, we process confidential information on behalf of our clients. This requires the highest standards of confidentiality of transferred data and information, which is why we decided to use a solution that ensures ultra-secure transfer and storage. In addition, only the parties involved will have access to it.
    Jakub Pomorski
    MBA Business Development Director, Koksztys
  • Personal data of job applicants, recruitment documents and salary information require a special set of actions due to meeting the requirements of the GDPR, preventing third parties from using the intellectual property without permission or stealing new-generation ransomware data, which is often disclosed to the public in the event of non-payment ransom. The most important activities of our company focus on protecting the brand, reputation and trust of our clients.
    Katarzyna Zybała
    CEO, KZ Inspire
  • Cypherdog is a very interesting solution that on the one hand can serve as an encrypted communicator inside the company and on the other to securely store and send valuable documents from the entrepreneur's point of view. Due to the combination of a high level of security and ease of configuration and use, it is simultaneously used in the micro and SME sector without dedicated IT departments as well as in large organizations with a global IT support.
    Maks Kisyk
    CEO, BF Group
  • Cypherdog is a solution ensuring the security of messaging and transfered files. It's a perfect compromise between technological advancement and ease of administration and operation through use. As a consequence, it's a great tool for companies looking for secure communication channels, which at the same time don't want to incur high costs of implementation or IT maintenance.
    Radosław Sroczyński
    Co-Founder, SafetyHeads
  • Cypherdog is one of the most secure solutions for communication, encrypted file transfer and cloud storage that I could read. In my opinion, the most important features are absolute private key protection, zero-knowledge security method and no "third party". In my opinion, it is an ideal solution for those who want to maintain the highest confidentiality of communication and have a manageable tool for confidential communication
    Artur Markiewicz
    Cybersecurity Consultant
  • We use Cypherdog to send relevant documents related to our investments, which should not fall into the wrong hands. It is the safest file transfer tool we know on the market.
    Jacek Kotra
    Director, Science and Technology Park "Technopark Gliwice"
  • A great solution for companies in the SMB sector, because it requires very little IT facilities and provides benefits in areas that non-technical people can understand. I am not saying that this is the best solution / ... /, but it is very good from the point of view of implementation and ease of use by the end user.
    Alex Sawsienowicz
    User Experience in Venafi, USA

Capterra Shortlist for Encryption Jan-2023

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1. What is the best about your file encryption software?

Our encryption software, Cypherdog E-mail Encryption, is based on asymmetric encryption without any “trusted” third party being involved and designed in a zero knowledge security model. This means that no one else has access to the decrypted data - only the sender and the recipient can see it.

2. Do you offer the best encryption algorithm in your encryption software?

In our encryption software, Cypherdog E-mail Encryption, we are using advanced encryption, such as asymmetric and symmetric algorithms, RSA3072 and AES-256.

3. How to encrypt email with your encryption app?

With our encryption app, Cypherdog E-mail Encryption, you can encrypt e-mail content in Outlook and Gmail with a single click, so you know how to encrypt Outlook and how to encrypt Gmail. For other e-mail clients, you should employ our “magic window” to encrypt data. To encrypt attachments, you can use our app from the sidebar or simply right click on the file.

4. Can I encrypt a file for free?

To encrypt sensitive files for free, you can use the Cypherdog E-mail Encryption Single User trial version, which will have all features, including file encryption, for 14 days. This way you can protect your personal files for free.

5. Do I need to worry about hackers decrypting my files?

With our top encryption software, you don’t need to worry about hackers decrypting your files and hackers decrypting your passwords. Hackers don’t have access to your private key. Your encryption key is securely stowed away on your device in encrypted form, protected by your password that you created. This encryption key is not transferred between users.

6. Are your security tools designed specifically for individuals and small businesses?

Cypherdog E-mail Encryption Single User is one of our popular security tools tailored for small companies or individuals, particularly those in the professional sector. This version comes with a single user license and installation is as straightforward as any antivirus software.

7. Why do I need to use encryption? Is data encryption necessary?

Encryption is a method of protecting sensitive data. Encryption software will automatically protect files and your sensitive data, and can enhance the security of communication between client apps and servers. In essence, when your data is encrypted, even if an unauthorized person or entity gains access to it, they will not be able to read it. So why do you need to use encryption? Is it necessary? It's necessary if you need to securely transmit your sensitive data. Cypherdog E-mail Encryption is more affordable than a cup of coffee and ensures comprehensive protection for all your data. Our software encryption grants you access to methods on how to encrypt Google Suite, how to encrypt Outlook, how to encrypt files on Google Drive, how to encrypt files on Dropbox, how to encrypt Wetransfer, and how to encrypt Slack.

8. What is RSA encryption?

Among many encryption solutions, RSA encryption (Rivest–Shamir–Adleman) stands out as an effective encryption program employed to guarantee secure data transmission. It provides a robust security level with a 2048-bit key length. The RSA encryption algorithm consists of three parts: key generation, encryption, and decryption. At the outset, two keys are generated - public and private. The public key is used to encrypt files, while the private key serves to decrypt them.

9. Do I use a private and public key in your security software?

Yes, our security software uses both a public and private key. Cypherdog E-mail Encryption is the best encryption software based on asymmetric encryption - a type of encryption that utilizes two distinct yet mathematically related keys to encrypt data and decrypt data. The public key encrypts data, while its corresponding private key decrypts it.

10. Do your encryption software solutions affect performance?

We are utilizing a dual algorithm approach with our encryption software solutions: symmetric and asymmetric. Asymmetric provides the highest level of security, while symmetric offers the speed. To put it another way, the timing of the encryption process is equivalent to that of WinZip.

11. Why are your encryption methods necessary to protect files saved on services?

Many of the services do not offer complete protection, since there is always a possibility of someone accessing our data by cracking the security. To avoid having your files stolen, it is recommended to utilize encryption techniques, such as Google Suite encryption, Google Drive encryption, Dropbox encryption, and Wetransfer encryption.

12. Do you offer the best encryption software for 2023 to protect my sensitive data?

Cypherdog E-mail Encryption is an exceptionally useful encryption tool because it is based on asymmetric encryption, the zero-knowledge security model, and eliminates the need for any third party interference, such as e-mail providers, us and any Certification Authority.

13. Do you support Outlook encryption?

Yes, our encryption software, Cypherdog E-mail Encryption, is compatible with Outlook used in conjunction with Microsoft Exchange or Microsoft 365. We have developed AddIns for both native and webclient platforms.

14. Do you support Gmail encryption?

Yes, our encryption software, Cypherdog E-mail Encryption, is compatible with Gmail through plugins for the most popular browsers: Microsoft Edge, Mozilla Firefox and Google Chrome.

15. Do you support Slack encryption?

Yes, our encryption software, Cypherdog E-mail Encryption, is compatible with ANY communication medium. To encrypt any text, you can use our “magic window” feature - which is included in tour encryption software.

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14 days for free

If you need to learn more about our solution or need help with implementation,
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