Block types

This page covers every block in the editor. Add a block from the block menu by typing / in an empty text block or clicking + to the left of a block. Block names in the menu are shown in English in both the Korean and English UI; each heading below lists the menu name. To see which blocks are created when you paste formatted content, see Pasting Markdown.

Block options menu

Click the handle (⋮⋮) to the left of a block, or press Ctrl+/ (Mac: Cmd+/), to open that block’s options menu. Besides common actions like Convert to, Move up, Move down, and Delete, it has options specific to each block — for example, changing the level (H1–H6) of a heading, switching the type of a list (bulleted ↔ numbered ↔ checklist), and Reset image width and Extract text for an image.

Text blocks

Heading (Heading)

Six heading levels, H1 through H6. The first block of a note is always locked as the document title and can’t be changed to another type. See Title lock.

Text (Text)

The basic text block. You can apply inline formatting, and indent or outdent with Tab / Shift+Tab.

Lists (Unordered List · Ordered List · Checklist)

Three kinds of lists are supported:

• Bulleted list — an unordered list
• Numbered list — a list with numbers
• Checklist — a to-do list you can check off

Press Tab to indent an item one level and Shift+Tab to outdent it. Lists can be nested several levels deep.

Nested bulleted lists use •, ◦, and ▪ markers by depth. To switch between bulleted, numbered, and checklist, use the list settings in the block handle menu.

Quote (Quote)

Records a quotation together with its source.

Code and formulas

Code, formula, and Mermaid blocks are edited the same way.

• While you type, the block shows an editing field; when you finish, it shows the rendered preview. Switch with the Edit / Done button at the top of the block.
• In the editing field, Enter adds a line break. Tab inserts two spaces and Shift+Tab outdents.
• Press Esc to switch to the preview and move the cursor to the next block.
• Use the field below the block for a caption or note.

Code (Code)

A code block with syntax highlighting. Choose from these 12 languages:

Plain Text, Python, JavaScript, TypeScript, Bash, PowerShell, JSON, YAML, Markdown, SQL, HTML, CSS

• Wrap lines: choose whether long lines wrap to the block width.
• Copy code: copies all of the code to the clipboard.
• Use the field above the code for a file name or label.

Formula (Formula)

Write a formula in LaTeX and it’s rendered with KaTeX. Write chemical equations with \ce{}, such as \ce{CO2 + C -> 2CO}. Drag the edge of a rendered formula to resize it.

Note

Formulas can only be inserted as blocks. Inline math within a sentence isn’t supported.

Diagram (Mermaid)

Draw flowcharts, sequence diagrams, class diagrams, and more with Mermaid syntax. You can explore a rendered diagram like this:

• Drag with the mouse to pan.
• Zoom with the Zoom in, Zoom out, and Reset zoom buttons, by scrolling the mouse wheel while holding Ctrl (Mac: ⌘), or by pinching on a trackpad. Scrolling the wheel alone scrolls the note.
• Double-click the diagram to return to the original view.
• Drag the edge of the block to change its width.
• Copy Mermaid copies the Mermaid code.

Tables and images

Table (Table)

A table where you can freely add and remove rows and columns. Inline formatting works inside cells, and Tab moves to the next cell. In the block options menu, choose whether the first row is a header row.

Image (Image)

Upload an image or paste an image address to insert it into a note.

• Upload: pick a file with the block’s Select an Image button, or drag an image file into the editor.
• Maximum size: 10MB
• Supported formats: JPEG, PNG, WebP, GIF
• Insert by address: paste an address that starts with https:// and ends in an image extension. Internal-network addresses and http:// addresses aren’t accepted.
• Resize: drag the edge of the image to change its width, and use Reset image width in the block options to undo it.
• Extract text: reads the text in an uploaded image and adds it as text blocks right below the image. The image stays. External images inserted by address aren’t supported.

Uploaded images count toward the workspace’s image storage. For storage limits, see Plans and limits. Guests can’t upload images.

You can also import PDF pages as image blocks and extract text from only the pages you need. For details and limits, see Importing images and PDFs.

Import PDF

Inserts the pages you pick from a PDF as regular image blocks. Start by choosing Import PDF in the block menu; you can import up to 10 pages at a time.

Dragging and dropping a PDF and extracting text from every page at once aren’t supported. See Importing a PDF in the editor for file limits, page selection, and canceling.

Other

Delimiter (Delimiter)

A horizontal line that visually separates content.

AI assistant

A block that hands writing and research to the AI inside a note. It isn’t in the block menu; open it by pressing Space on an empty text line or from the AI input bar at the bottom of the editor. See AI assistant block for details.

Deleting blocks

To prevent accidental deletion, blocks such as images, tables, code, formulas, diagrams, and delimiters are deleted only when you press Backspace twice on the line right below them. The first press marks the block, and the second deletes it.