Open Editor

Privacy Policy

Last updated: March 9, 2026

1. Overview

Markdown Preview Online at markdownpreviewonline.com is committed to protecting your privacy. This Privacy Policy explains what information we collect, how we use it, and your rights regarding your data.

2. Local-First Processing

Markdown content is processed locally in your browser and is not stored on our servers. All editing, rendering, and export operations happen entirely on your device. We have no access to the content you create or edit in the editor.

Your documents are saved in your browser's localStorage for auto-save functionality. This data remains on your device and is never transmitted to our servers.

3. Information We Collect

While we do not collect your document content, we may collect the following types of information:

3.1 Analytics Data

We use Google Analytics to collect anonymized usage data to help us understand how our service is used and improve it. This may include:

  • Pages visited and navigation patterns
  • Approximate geographic location (country/region level)
  • Browser type and version
  • Device type and screen resolution
  • Referring website or search terms
  • Session duration and interaction events

Google Analytics uses cookies and similar technologies to collect this information. For more details, see Google's Privacy Policy.

3.2 Local Storage

We use browser local storage to save:

  • Your editor content (auto-save, stays on your device)
  • Theme preference (light/dark mode)
  • UI preferences such as dismissed tips and onboarding state

This data is stored locally on your device and is never sent to our servers.

4. Cookies

Our service uses the following types of cookies:

  • Analytics cookies — Placed by Google Analytics to track anonymized usage patterns. These cookies have expiration periods set by Google.
  • Theme preference — A cookie or localStorage entry to remember your light/dark mode selection.

We do not use advertising cookies, tracking pixels, or third-party marketing cookies.

5. How We Use Information

The anonymized analytics data we collect is used to:

  • Understand usage patterns and improve the service experience
  • Identify and fix technical issues
  • Make informed decisions about feature development
  • Monitor service performance and availability

6. Data Sharing

We do not sell, rent, or share your personal information with third parties for marketing purposes. Anonymized analytics data may be processed by Google as part of the Google Analytics service.

7. Data Security

Since your document content never leaves your browser, it is inherently protected. We implement reasonable security measures for our website infrastructure, including HTTPS encryption for all data in transit.

8. Your Rights

You have the right to:

  • Access your data — Your editor content is stored in your browser's localStorage and can be accessed or deleted at any time through your browser settings.
  • Opt out of analytics — You can disable Google Analytics tracking by installing the Google Analytics Opt-out Browser Add-on or by using browser extensions that block tracking scripts.
  • Clear local data — You can clear all locally stored data by clearing your browser's site data for markdownpreviewonline.com.
  • Request information — Contact us to ask about what data we process and how.

9. Children's Privacy

Our service is not directed at children under the age of 13. We do not knowingly collect personal information from children.

10. Changes to This Policy

We may update this Privacy Policy from time to time. Any changes will be reflected on this page with an updated "Last updated" date. Continued use of the service after changes constitutes acceptance of the revised policy.

11. Contact Information

If you have any questions or concerns about this Privacy Policy or our data practices, please contact us at: