Free Online Bidirectional Conversion
Using the Markdown ⇄ HTML Converter is simple:
Markdown ⇄ HTML conversion is widely used in web development and content creation:
Platforms like GitHub, GitLab, and Bitbucket use Markdown format for README files and documentation. Convert to HTML for publishing on websites or blogs. You can also convert existing HTML documents to Markdown for version control.
Static site generators (Jekyll, Hugo, Gatsby, etc.) use Markdown for article writing and convert to HTML for publishing. Write efficiently with Markdown's simple syntax, then publish beautifully styled HTML pages.
When migrating from CMS platforms like WordPress to Markdown-based systems, batch convert HTML content to Markdown for efficient migration. Conversely, import Markdown content into HTML-based CMS platforms.
Draft marketing emails and newsletters in Markdown, then convert to HTML for email delivery systems, enabling efficient email creation workflows.
Convert content written in Markdown-supporting note apps (Notion, Obsidian, Typora, etc.) to HTML for website publishing. Also convert HTML content to Markdown for note app management.
Convert Markdown content returned from RESTful APIs or GraphQL APIs to HTML for frontend display, or convert HTML content to Markdown for database storage.
Convert legacy system HTML documents to simpler, more maintainable Markdown format to reduce future maintenance costs.
Both Markdown and HTML are languages for describing web content, but they differ significantly in purpose and syntax.
Markdown is a lightweight markup language that's readable in plain text. Created by John Gruber in 2004, it's designed to be converted to HTML with simple syntax for headings, lists, links, images, and more.
Key Features:
HTML is the standard markup language for describing web pages. It uses tags (<tag>) to define document structure and display methods. Offers more detailed control with strong integration with styles (CSS) and scripts (JavaScript).
Markdown excels in writing efficiency and readability, while HTML excels in display flexibility and control. Bidirectional conversion enables workflows that leverage the strengths of each. For example, write in Markdown and convert to HTML for styled publishing.
Markdown's simple syntax enables faster document creation than manually writing HTML tags. Common elements like headings, lists, and links are dramatically faster to write in Markdown.
Markdown source code is overwhelmingly more readable than HTML and more intuitive to edit later. Prevents mistakes like forgotten closing HTML tags.
In version control systems like GitHub, Markdown format diffs are very readable, enabling smooth collaborative writing with multiple people.
Markdown content can be used across various platforms and tools. Not dependent on specific CMS or editors, making future migration easy.
Many Markdown editors feature real-time preview, allowing you to see the final appearance while writing.
HTML → Markdown conversion enables migration of existing web content to Markdown format for more maintainable workflows.
Here are the main Markdown syntax elements:
# Heading 1 ## Heading 2 ### Heading 3
**Bold** *Italic* ***Bold and Italic***
- Unordered list 1 - Unordered list 2 1. Ordered list 1 2. Ordered list 2
[Link text](https://example.com)
`Inline code` ``` Code block ```
> Quote text
| Header 1 | Header 2 | |----------|----------| | Cell 1 | Cell 2 |
This tool supports basic syntax from CommonMark and GitHub Flavored Markdown (GFM), including headings, lists, links, images, code blocks, tables, and emphasis.
Markdown → HTML conversion converts Markdown syntax to appropriate HTML tags. HTML → Markdown conversion preserves the original structure as much as possible, but complex CSS styles and JavaScript are not preserved.
Yes, but since processing occurs in the browser, very large files (several MB+) may experience performance degradation. Normal document sizes (several KB to several hundred KB) convert without issues.
By default, converted HTML does not include CSS styles. Add CSS to the converted HTML as needed.
Only basic Markdown syntax is supported. Extended syntax like LaTeX formulas or Mermaid diagrams is not supported. Use specialized tools or libraries for these features.
This tool processes everything in your browser and never sends data to servers. However, for highly confidential documents, we recommend using local environment tools.
Copy the conversion result and paste it into a text editor, then save with .html or .md extension. We're considering adding a download feature in the future.
Simple HTML structures (headings, paragraphs, lists, links, etc.) convert with high accuracy. Complex HTML layouts, nested tables, and CSS styles may not be fully reproduced.
Convert CSS units: px, em, rem, %, etc.
Convert image file formats
Convert and calculate IP CIDR ranges
Convert between JSON, CSV, TSV, XML, and YAML
Convert CSS color formats: HEX, RGB, HSL, HSV, etc.
Convert world currencies at current exchange rates