Markdown Import
The functions to import from Markdown are considered "lossy"; some information might be dropped when converting Markdown to Blocks.
To serialize Blocks to a non-lossy format (for example, to store the contents of the editor in your backend), simply export the built-in Block format using JSON.stringify(editor.document).
BlockNote can import Markdown content into Block objects. Note that this is considered "lossy", as not all Markdown structures can be entirely represented as BlockNote blocks.
BlockNote ships a minimal Markdown parser. It covers the common subset used by most users (CommonMark + GFM basics: headings, paragraphs, lists, task lists, tables, code, blockquotes, links, images, emphasis, strikethrough, hard breaks).
There are many Markdown specifications (CommonMark, GFM, MDX, Pandoc, and various dialect-specific extensions) and supporting all of them inside a rich text editor is not a goal of BlockNote. If you need to handle Markdown beyond this minimal subset, parse it to HTML yourself with a parser of your choice (e.g. marked, markdown-it, or remark) and pass the resulting HTML to tryParseHTMLToBlocks instead. BlockNote's HTML interoperability is much broader, since HTML is the format the editor uses internally for arbitrary pastes.
Markdown to Blocks
Use tryParseMarkdownToBlocks to try parsing a Markdown string into Block objects:
tryParseMarkdownToBlocks(markdown: string): Block[];
// Usage
const blocksFromMarkdown = editor.tryParseMarkdownToBlocks(markdown);returns: The blocks parsed from the Markdown string.
Tries to create Block and InlineContent objects based on Markdown syntax, though not all symbols are recognized. If BlockNote doesn't recognize a symbol, it will parse it as text.
Demo