Cookie Policy

Understand how ConceptDiagram uses essential cookies and privacy-focused analytics to keep accounts secure, remember preferences, and improve the service.

2026/06/17

Last updated: June 17, 2026

Introduction

This Cookie Policy explains how ConceptDiagram ("we", "us", or "our") uses cookies and similar technologies on our website at https://conceptdiagram.com (the "Service"). It should be read together with our Privacy Policy.

By using the Service, you consent to the use of cookies as described in this policy.

What Are Cookies

Cookies are small text files that are stored on your device when you visit a website. They are widely used to make websites work, to keep you signed in, and to help website owners understand how their site is used. Similar technologies, such as local storage, work in comparable ways.

How We Use Cookies

We use only the following limited categories of cookies and similar technologies. We do not use advertising cookies, and we do not use cookies for cross-site tracking, behavioral advertising, or ad targeting.

Strictly Necessary Cookies

These cookies are essential for the Service to function and cannot be switched off in our systems. They are used to:

  • Keep you signed in and maintain your authenticated session (via Better Auth, including when you sign in with Google)
  • Protect against fraud and abuse and keep the Service secure
  • Remember basic preferences needed for the Service to work correctly

Analytics Cookies

We use privacy-focused, self-hosted analytics through OpenPanel (hosted by us at metrics.betterai.dev) to understand aggregate usage, such as which features are used and how visitors navigate the Service, so we can improve it. These analytics are designed to respect your privacy and are not used for advertising or cross-site tracking.

Managing Cookies

Most web browsers allow you to control cookies through their settings. You can:

  • Delete cookies already stored on your device
  • Block cookies by adjusting your browser settings to refuse all or some cookies
  • Set your browser to notify you when you receive a cookie

Please note that strictly necessary cookies are required for core functionality such as signing in. If you block or delete these cookies, parts of the Service may not work properly.

We may update this Cookie Policy from time to time. When we make changes, we will update the "Last updated" date above and post the revised policy on this page.

Contact Us

If you have any questions about this Cookie Policy, please contact us at support@conceptdiagram.com.