Safety and limitations

Supported Markdown, HTML, and external content

Understand supported syntax and disabled content that keeps Preview and export safe and consistent.

Content reviewed:
Actual interfaceReview supported content
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Use Markdown documented in the editing controls and Guide.
Enter Markdown and review only the generated result in Preview.

Use Markdown as the source

Use headings, body text, lists, quotes, links, code, tables, and verified Marplio syntax. HTML tags in Markdown are disabled except for <br> inside table cells.

External loading is restricted

External URL images are currently unsupported. External scripts, embedded HTML, Mermaid links, and click actions are not loaded. These restrictions keep Preview and export consistent and safe.

Do not enter secrets

Do not paste passwords, authentication tokens, personal data, or unpublished secrets into examples or support requests. Before handling internal material, confirm your organization’s information-management rules and intended sharing scope.

If the issue continues, contact us with the error message and time. Do not include passwords or Markdown content.

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