What is a Markdown Editor?
A Markdown Editor is a free online tool that lets you write and preview Markdown content in real-time. The left panel is your writing space where you type Markdown syntax, and the right panel shows the rendered HTML preview instantly. It is perfect for writing README files, documentation, blog posts, and any content that uses Markdown formatting.
Why use Markdown?
Markdown is the universal language of documentation in the tech world. GitHub, GitLab, Notion, Reddit, and countless other platforms use it. Writing in Markdown means your content is portable, version-controllable, and converts cleanly to HTML. Unlike rich text editors, Markdown files are plain text — they are tiny, work with any text editor, and never have formatting corruption issues.
Markdown syntax quick reference
Headlines use # (h1), ## (h2), ### (h3). Bold text uses **double asterisks**, italic uses *single asterisks*. Links are [text](url), images are . Code blocks use triple backticks. Lists use - or * for bullets, 1. for numbers. Blockquotes use >. Tables use pipes |. Learning these basics takes minutes but increases your productivity for years.