Cypherdog is an advanced application
for secure communication among users

Check out what Cypherdog allows you to do:


Send files securely
Send files in all formats and sizes in a secure way with end-to-end encryption allowing you to share files among your contacts, ensuring that nobody is able to intercept them.

Neither we nor any other "trusted third party" has access to your files. At the same time, thanks to confirming the identity of your contacts, you know for sure that no one will be able to impersonate the person you are communicating with.
Use chat with encrypted communication
  • all address books of our users are encrypted (featuring full anonymity of contacts),
  • we don't know who our users invite to chat (fully anonymous conversation),
  • we don't know when or who is talking to whom (full anonymity of communication),
  • we don't know what users are sending with end-to-end encryption (full confidentiality and message integrity),
  • we do not save any data on our servers' hard drives (all communication is carried using RAM),
  • all encrypted anonymous messages on our servers are completely removed after 24 hours and no trace is left of them (no data is saved to the hard drives of the servers)
  • Manage your files in an encrypted cloud
    Secure place to store documents, contracts and reports that no one else can have access to? You can store files in your secure cloud, which only you can access from our application. Use our encrypted cloud as a secure archive of your most important data.

    We don’t use web client applications. Access to services is available in a desktop application.
    Encrypt files locally on your device
    The private key that protects all communications in the system is ONLY on your disk.
    Only YOU have access to a key that allows you to encrypt your files, conduct chat conversations, manage your devices and address books. Encryption of all communications is always done locally on your device.
    This can be used to locally encrypt your confidential files.

    Cypherdog is an advanced application
    do for secure communication among users.

    Check out what Cypherdog allows you to do:


    #1. Send
    files securely
    Thanks to the application, you can send files in all formats and sizes in a secure way - end-to-end encryption, on which our technology is based, allows you to share files among your contacts, ensuring that nobody is able to intercept them. Neither we nor any other "trusted third party" has access to the unencrypted version of your files. At the same time, thanks to confirming the identity of your contacts in the blockchain registry, you know for sure that no one is impersonating the person you are communicating with.
    #2. Chat and make encrypted phone calls
    Cypherdog is also a chat for text and voice conversations. All messenger conversations are encrypted and no copies are saved to the hard disk. In addition, if the person you send a message to does not read it within the next 8 hours, the message is deleted and no trace of it remains.
    #3. Manage your files in an encrypted cloud
    Do you need a secure place to store documents, contracts and reports that no one else can have access to? Nothing simpler - you can store files in your secure cloud, which only you can access from the application.
    #4. Encrypt files locally on your device
    The private key, which only you have access to after generation, allows you to encrypt your files from the Cypherdog application. Thanks to this, no unauthorized person can decrypt them yourself.

    What people are saying about Cypherdog

    • Cypherdog is a brilliant solution. I tested hundreds of solutions in my career as an IT journalist and security test expert, but few have impressed me so well. Data security and user privacy in this product are at the highest level.
      Adrian Ścibor
      Editor-in-chief, AVLab.pl
    • 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

    Why Cypherdog?

    For whom is Cypherdog?

    Create an account and send your data securely!

    If you need to learn more about our solution, or need help in implementing it, write to us: office@cypher.dog
    Download the app