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Zero Knowledge

Every tool provided by Cryptpad are based on a Zero Knowledge technology. It means that our server stored only encrypted data, and we have no way to decrypt it. Even data about your account, including your username, are encrypted.

Realtime

Our tools also use a Realtime technology, which means that you can edit the documents, slides or polls collaboratively with other people. Our unique technology has the advantage of combining both realtime and zero-knowledge at the same time.

Share documents

When you want to edit a document with other users or invite them to answer to a poll, you just have to share the URL of that document with them. All the information needed to access and edit it are contained in the "hash" of the URL.

User Account

In order to have Zero Knowledge user accounts, we needed a way to store your settings without knowing your username and password. To do so, our tools generate a unique key from your username and password, directly in your browser.

Try it out!

Rich Text editor

Edit rich text documents collaboratively with our realtime Zero Knowledge CkEditor application.

Code editor

Edit code from your software collaboratively with our realtime Zero Knowledge CodeMirror application.

Slide editor

Create your presentations using the Markdown syntax with our CryptSlide application, and display them in your browser.

Polls

Plan your meeting or your event, or vote for the best solution regarding your problem using our poll application.