Markdown Guide

A complete reference for markdown syntax. Every example works in Dillinger — open the editor and try them.

Headings

Use hash symbols to create headings. One hash for the largest heading, up to six for the smallest.

# Heading 1
## Heading 2
### Heading 3

Wrap text in asterisks or underscores for emphasis. Double for bold, single for italic, tildes for strikethrough.

**bold** or __bold__
*italic* or _italic_
~~strikethrough~~
***bold italic***

Square brackets for the display text, parentheses for the URL. Add a quoted string for a hover title.

[Link text](https://example.com)
[Link with title](https://example.com "Title")

Same as links but with an exclamation mark prefix. Always include alt text for accessibility.

![Alt text](image-url.jpg)
![Alt text](image-url.jpg "Title")

Use dashes, asterisks, or plus signs. Indent with two spaces for nested lists.

- Item one
- Item two
  - Nested item
  - Another nested

Number followed by a period. The actual numbers do not matter — markdown will renumber automatically.

1. First item
2. Second item
3. Third item

Add square brackets after the list marker. Use x for completed items.

- [x] Completed task
- [ ] Incomplete task

Prefix lines with a greater-than symbol. Nest by adding more symbols.

> This is a quote.
>
> It can span multiple lines.

Wrap text in single backticks for inline code formatting.

Use `backticks` for inline code.

Use triple backticks with an optional language identifier for syntax-highlighted code blocks.

```javascript
const x = 42;
console.log(x);
```

Use pipes and hyphens to create tables. Colons in the separator row control alignment.

| Header | Header |
|--------|--------|
| Cell   | Cell   |
| Cell   | Cell   |

Three or more hyphens, asterisks, or underscores on a line create a horizontal rule.

---
***
___

Reference footnotes with bracketed caret notation. Define them anywhere in the document.

Text with a footnote[^1].

[^1]: This is the footnote content.

Dillinger supports KaTeX math rendering. Use single dollars for inline, double for block equations.

Inline: $E = mc^2$

Block:
$$
\\sum_{i=1}^{n} i
$$

Dillinger renders all of these formats in real time. Paste any example into the editor and see the preview instantly.