Open the block menu with / to insert content beyond basic paragraphs and lists.

Available blocks

Callouts and toggles

Use callouts to emphasize notes, tips, warnings, and important context. Toggles keep supporting detail collapsed until a reader needs it.

Math

Add inline and display math using KaTeX syntax. Math remains represented in the Markdown source.

Mermaid diagrams

Insert a Mermaid block to render flowcharts and other diagrams from text. The source is stored in a fenced Mermaid code block, so it remains portable.

Code blocks

Add fenced code blocks with a language for syntax highlighting.

Images and web bookmarks

Images can reference local workspace assets. Web bookmarks create a visual link preview; fetching that preview requires an internet connection.

Columns and table of contents

Columns support side-by-side layouts. A table-of-contents block follows the headings in the current document. Link to another Markdown document in the same workspace to connect related notes and plans.
Rich layout and editor-only details are stored in the hidden .doxmind sidecar. Keep that sidecar with the Markdown file to preserve the complete editing experience.