Markdown Editor
Type or paste Markdown to see it rendered instantly with full syntax highlighting for code blocks. Copy the HTML output or raw Markdown with one click. Split-pane layout on desktop, stacked on mobile.
Loading preview...
How to Use the Markdown Editor
- Type or paste your Markdown into the left panel
- See the rendered preview update in real time on the right
- Code blocks get syntax highlighting automatically
- Click Copy HTML to get the rendered HTML output
- Use on mobile — panels stack vertically for easy editing
What Is a Markdown Editor?
A Markdown editor is a writing tool that lets you format text using lightweight syntax instead of toolbar buttons or complex word-processing menus. Markdown uses simple characters like # for headings, ** for bold, and - for bullet lists to define structure and emphasis. The syntax was created by John Gruber in 2004 to let people write in plain text that is still easy to read before rendering.
Online Markdown editors typically feature a split-pane interface: you write raw Markdown on one side and see the formatted output on the other in real time. This live preview workflow eliminates the guess-and-check cycle of writing Markdown in a plain text file and then opening it separately to confirm the output. Syntax highlighting for fenced code blocks is another essential feature, as developers frequently embed snippets in documentation and README files. A browser-based editor like this one requires no installation and works on any device, making it ideal for quick edits, note-taking, and drafting technical content on the go.
Popular Use Cases
README and Documentation
Draft GitHub README files, project wikis, and API documentation with instant preview so you can verify formatting before committing.
Blog Post Drafting
Write blog posts in Markdown, preview them with proper heading hierarchy and emphasis, then copy the HTML to paste into your CMS.
Note-Taking and Knowledge Bases
Take structured notes with headings, lists, and code snippets that render cleanly, making them easier to scan and share with teammates.
Email and Report Formatting
Compose formatted content quickly using Markdown shortcuts, then copy the rendered HTML into email clients or report templates.
Tips for Writing Markdown
Use Heading Hierarchy
Start with a single # for the page title, then use ## and ### for subsections. Skipping heading levels hurts readability and accessibility.
Fenced Code Blocks with Language Tags
Wrap code in triple backticks and specify the language (e.g. ```javascript) to enable syntax highlighting in the preview output.
Reference-Style Links
For documents with many links, use reference-style syntax [text][id] to keep paragraphs readable and manage URLs in one place at the bottom.
Preview Before Publishing
Always check the rendered output for broken links, unclosed formatting, and heading hierarchy before copying or exporting your Markdown.