Privacy Policy

Last updated: August 4, 2026

This Privacy Policy explains how MarkdownToHTML.online (“MarkdownToHTML.online,” “we,” “us,” or the “Service”) handles information when you visit or use MarkdownToHTML.online.

Privacy is a core feature of the Service. Markdown-to-HTML conversion is primarily performed within your own web browser.

1. Data controller

The controller responsible for personal data associated with the operation of MarkdownToHTML.online is the operator of MarkdownToHTML.online.

You may contact us at:

Email: support@markdowntohtml.online

2. How the Service works

MarkdownToHTML.online allows you to:

  • Write or paste Markdown content.
  • Open .md, .markdown, or .txt files.
  • Convert Markdown into HTML.
  • Edit the content and preview.
  • Copy Markdown, HTML, or rich text to the clipboard.
  • Download Markdown or HTML files.
  • Automatically save the current document in your browser.

Markdown content, opened files, generated HTML, and preview edits are processed locally in your browser. The current version of the Service does not intentionally transmit that content to our servers in order to perform the conversion.

3. Information we process

3.1. Locally processed content

Content that you type, paste, or open in the editor may include text, code, links, or any other information you choose to provide.

This content:

  • Is processed on your device.
  • May be saved in your browser’s local storage to provide autosave functionality.
  • Is not normally received by our servers.
  • Is not used for advertising, profiling, or artificial-intelligence training.

You should avoid entering sensitive personal data or confidential information unless doing so is necessary.

3.2. Preferences and local storage

The Service uses browser storage technologies, primarily localStorage, to save:

  • The document currently being edited.
  • Your selected language.
  • Your light or dark theme preference.

This information remains in your browser until:

  • You use the Service’s reset function.
  • You clear the website’s data through your browser settings.
  • You use a private or incognito session and close that session.
  • Your browser automatically removes its locally stored data.

MarkdownToHTML.online does not normally receive locally stored content during ordinary use of the Service.

3.3. Clipboard and downloads

When you use a copy function, the Service asks your browser to write the selected content to the clipboard.

When you download a file, the file is normally generated within your browser using your device’s download functionality.

These operations are performed only when you request them.

3.4. Technical and server-log data

When you visit the website, our hosting and infrastructure providers may automatically process technical information needed to deliver and protect the Service, including:

  • IP address.
  • Date and time of the request.
  • Requested address or resource.
  • Browser type and version.
  • Operating system.
  • Referring page, when provided by the browser.
  • Response codes, errors, and security-related information.

This information may be used to operate the website, diagnose errors, prevent abuse, investigate security incidents, and maintain the availability of the Service.

3.5. Technical resources from our domain

Certain features, such as emoji-code processing, may request additional technical resources hosted under the MarkdownToHTML.online domain.

These requests may generate the ordinary technical information described above, but they are not intended to transmit the complete document being edited.

The Service may also use browser caching or a service worker to improve performance, availability, or offline operation.

3.6. Email communications

When you email support@markdowntohtml.online, we may process:

  • Your email address.
  • Your name, when provided.
  • The contents of your message.
  • Any attachments you choose to send.
  • Technical metadata associated with the communication.

We use this information to respond, provide support, investigate incidents, and protect our rights.

Do not send confidential documents, passwords, private keys, or sensitive information unless strictly necessary.

4. Cookies and similar technologies

The current version of the Service does not use advertising cookies or third-party analytics tools.

The Service uses local storage and technical browser mechanisms to provide requested functionality, including:

  • Autosave.
  • Language preferences.
  • Theme preferences.
  • Caching of technical resources.
  • Website operation and security.

You can remove this data through your browser’s privacy or storage settings. Removing it may delete your autosaved document and saved preferences.

Where data-protection law applies, we process information for the following purposes:

Providing the Service

To deliver the website, process technical requests, and provide the functionality you request.

The legal basis may be performance of our relationship with you or taking steps at your request.

Security and operation

To prevent abuse, maintain security, diagnose errors, and ensure the Service remains available.

The legal basis is our legitimate interest in operating and protecting the Service.

Responding to enquiries

To respond to messages sent to our support address.

The legal basis may be taking steps at your request, our legitimate interest in supporting users, or your consent, depending on the nature of the communication.

Legal compliance

We may process or retain information when necessary to comply with a legal obligation, respond to a competent authority, or establish, exercise, or defend legal claims.

6. Retention

We apply the following retention criteria:

  • Locally stored content and preferences: remain in your browser until you remove them or your browser deletes them.
  • Technical logs: are retained for the shortest period reasonably necessary for security, diagnostics, and operation, according to our infrastructure configuration.
  • Support enquiries: are retained for as long as needed to respond, follow up on the issue, and address potential legal obligations or claims.
  • Legally required information: is retained for the periods required by applicable law.

When information is no longer required, it is deleted, anonymized, or restricted.

7. Providers and recipients

We may use providers that help us operate the Service, including:

  • Hosting and content-delivery providers.
  • Infrastructure, security, and abuse-prevention services.
  • Email providers.
  • Professional advisers where necessary.

These providers should process information only to provide their services and in accordance with applicable contractual and legal obligations.

We may also disclose information when required by law, in response to a valid request from a competent authority, or when necessary to protect our rights, users, or systems.

We do not sell personal data or use the contents of your documents for personalized advertising.

8. International transfers

Some infrastructure or email providers may process information outside the European Economic Area.

Where required, we will rely on legally recognized mechanisms such as adequacy decisions, standard contractual clauses, or other appropriate safeguards.

9. Your rights

Depending on your location and applicable law, you may request:

  • Access to your personal data.
  • Correction of inaccurate information.
  • Deletion of your data.
  • Restriction of processing.
  • Data portability.
  • Objection to certain processing.
  • Withdrawal of consent where processing relies on consent.

To exercise these rights, email support@markdowntohtml.online and clearly describe your request.

We may request reasonable information to verify your identity. This protects your information from unauthorized access, alteration, or deletion.

You may also lodge a complaint with the competent data-protection authority. If the controller is established in Spain, you may contact the Spanish Data Protection Agency, the Agencia Española de Protección de Datos.

Please note that content stored solely in your browser’s local storage is not normally under our control. To remove it, use the reset function or clear the website’s data through your browser.

10. Security

We use reasonable technical and organizational measures to protect information and maintain the security of the Service.

However, no website, device, storage system, or electronic transmission can be guaranteed to be completely secure. You are responsible for protecting your device, browser, downloaded copies, and email account.

11. Children

The Service is not specifically directed at children and is not intended to knowingly collect their personal data.

If you believe that a child has improperly submitted personal data to us, contact us so that we can review and, where appropriate, delete the information.

The Service may contain links to external websites. Their privacy practices are controlled by their respective operators.

You should review the privacy policy of any external website before providing personal information.

13. Changes to this Policy

We may update this Policy to reflect changes to the Service, our practices, or applicable law.

The updated version will be published on this page with a new “Last updated” date. Where changes are material, we may provide an additional reasonable notice.

14. Contact

For privacy or data-protection enquiries:

support@markdowntohtml.online