Markdown Editor — Complete Syntax Guide & Documentation
Markdown is a lightweight markup language created by John Gruber in 2004 that allows you to format plain text using simple, human-readable syntax. It is now the industry standard for GitHub README files, documentation systems, Reddit, Discord, Slack, headless CMS platforms, and technical writing. Our editor uses the Marked.js library for high-speed rendering compatible with GitHub Flavored Markdown (GFM).
Complete Markdown Syntax Cheat Sheet
Headings
# Heading 1
## Heading 2
### Heading 3
#### Heading 4
Text Formatting
**Bold Text**
*Italic Text*
~~Strikethrough~~
`Inline Code`
Links & Images
[Link Title](https://url.com)
[reference][id]
[id]: https://url.com
Lists
- Unordered item
* Also unordered
1. Ordered item
- Nested item (3 spaces)
Code Blocks
```javascript
const x = 42;
```
Supports syntax highlighting for Python, JS, SQL, etc.
Tables (GFM)
| Col 1 | Col 2 |
| :--- | :---: |
| Left | Center |
:--- = left, :---: = center, ---: = right align
Quotes & Rules
> Blockquote text here
>> Nested quote
--- (horizontal rule)
*** (also horizontal rule)
Task Lists (GFM)
- [x] Completed task
- [ ] Pending task
Only supported in GitHub Flavored Markdown (GFM) environments
The Copy HTML Feature
Click "Copy HTML" to instantly convert your Markdown to production-ready HTML code. This
eliminates manual HTML writing — type content in clean readable Markdown, then paste the outputted HTML
directly into your blog CMS, email template, or static website. The exported HTML includes proper
semantic tags like <h1>, <ul>, <blockquote>,
and <table>.
What is GitHub Flavored Markdown (GFM)?
GitHub Flavored Markdown (GFM) extends standard Markdown with additional features like tables, task lists (- [x]), strikethrough (~~text~~), fenced code blocks with language identifiers, and auto-linking of URLs. GFM is the format used on GitHub, GitLab, and many modern documentation platforms. Our editor supports all GFM features.
Can I use this to write blog posts or documentation?
Absolutely. Write your content in the editor, verify the formatted output in the preview pane, and then use "Copy HTML" to get the code ready to paste into WordPress, Ghost, or any HTML-based CMS. For Markdown-native platforms (GitHub, Notion, GitBook), use "Copy Markdown" to copy the raw Markdown source.