Free Markdown Editor Online

Markdown
0 characters
Preview
Quick Reference
Headers
# ## ###
Emphasis
**bold** *italic*
Lists
- item
1. item
Links
[text](url)

What is a Markdown Editor?

A Markdown editor is a text editor that renders Markdown syntax into formatted HTML in real time. Markdown is a lightweight markup language created by John Gruber in 2004 — it uses simple symbols like # for headings, **bold** for bold text, and - item for lists. It's the standard format for README files on GitHub, documentation sites, forum posts (Reddit, Stack Overflow), and static site generators like Jekyll and Hugo.

This online Markdown editor supports GitHub Flavored Markdown (GFM), which adds tables, fenced code blocks, task lists, and strikethrough on top of standard Markdown.

How to Use the Markdown Editor

  1. Type or paste your Markdown text in the left panel.
  2. The right panel shows the live HTML preview, updating as you type.
  3. Use the toolbar buttons for quick formatting — headings, bold, italic, lists, code blocks, and links.
  4. Use the Copy HTML button to copy the rendered HTML output for use in your project.
  5. Use the Download button to save your Markdown as a .md file.

When Would You Use This?

Developers use this editor when writing GitHub README files, documentation for open-source projects, or technical blog posts. The live preview eliminates the write-commit-refresh cycle when editing docs directly in a repository, making it faster to draft and proof content before pushing to GitHub.

Content writers use Markdown for blogs powered by Gatsby, Hugo, or Astro, where content is stored as .md files. Technical writers use it for API documentation (Swagger, Stoplight) and wikis (Confluence supports Markdown). This editor is also useful for converting existing prose to Markdown format by checking how text renders as you add Markdown syntax.