Folding Mirror is a Markdown editor for macOS, featuring live preview which renders what you type in place. When the caret is moved onto a line, it folds back into its Markdown source, allowing you to edit the original content instead of a representation. The editor can be previewed on the website before downloading.
What differentiates Folding Mirror from other WYSIWYG Markdown editors is its built-in features within the document. It includes drawings, diagrams, a link graph, and an AI assistant. These are integral parts of the editor, not just add-on plugins. Meanwhile, the notes remain as standard .md files in your chosen folder, without requiring a database or an account.
The AI assistant reads and edits files in your notes folder, connects to MCP servers, and displays every write as an approval card before it happens. It operates on your own API key, with no subscription or server involved.
The editor also includes Excalidraw drawings embedded in documents and saved as separate files, Mermaid diagrams rendered inline, a graph view of the links between notes, version history backed by git in its own location, and tables edited in place as real tables. You can add, move or delete rows and columns from a menu on the table itself. There's also a '/' menu that inserts headings, tables, drawings, diagrams, code blocks and math without leaving the keyboard.
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