Privacy & Security


This policy was last updated on 19th December 2017.

We understand that privacy is important to our online visitors and users. We respect your privacy and will take all reasonable steps to safeguard and protect your information as if it was our own.

This policy will help you understand what personal data collects; how it collects, holds, uses and discloses that information; and the purposes of collection and disclosure.

Data Privacy

We only use your identifying personal data (name, email, twitter handle, github username or other identifiers) to provide and improve the service we give to you. We will not share it with anyone.

If you create a diagram using a Free account it will not be private. It will be publicly accessible over the web.

If you have a Pro account, you may mark your diagram as private.

If you downgrade your account from Pro to Free, any private diagrams will remain private.

The service is securely hosted on Microsoft Azure cloud services. All communications between your browser and our server are encrypted with HTTPS which is the same technology used to encrypt communications with your bank.

Data Retention

We will retain your identifying personal data and the diagrams that you create indefinitely, unless you delete your account in which case we will delete both immediately.


We do not disclose your data to advertisers under any circumstances, and we take data privacy very seriously. Even if you’re using our free plan.

Cookies puts small files (known as ‘cookies’) onto your computer to collect information about how you browse the site.

We use cookies from the following sites, and for reasons given:

  • – to remember who you are and if you are logged in
  • Google Analytics – to measure how you use our site
  • Intercom – to provide live support and measure how you use our site

Some of the cookies are on the domain and some on the domains of the third party services.