Markdown Editor & Previewer
Write Markdown on one side and watch the rendered HTML build live on the other.
About
About Markdown Editor & Previewer
John Gruber created Markdown back in 2004 specifically so writers could format text using plain, readable punctuation, asterisks for bold, hyphens for lists, rather than clunky rich-text toolbars, and it's since become the default syntax for README files, technical docs, and most static site generators. This editor splits your workspace into a raw Markdown pane and a live-rendered preview, so you can confirm headers and code blocks actually look right before committing anything.
Markdown's entire appeal is staying readable as plain text even before it's rendered, which is exactly why it's the standard for GitHub repositories and developer documentation, a .md file opens cleanly whether you're viewing it rendered or raw. But catching formatting mistakes, a list that didn't nest right, a code fence that didn't close, is much faster with live visual feedback than by mentally parsing syntax.
Switching between a plain text editor and a separate rendering tool breaks concentration constantly. A single workspace where typing on one side instantly updates the preview on the other keeps writing and verification in the same flow.
Type or paste your Markdown into the left pane. The editor parses it instantly, rendering a live formatted preview on the right, with a one-click option to export clean HTML.
Drafts and internal documentation are often not ready for anyone else's eyes yet. Everything runs locally in your browser, with nothing transmitted to a server.
FAQ
Frequently asked questions
What is Markdown, and who created it?
A lightweight plain-text formatting syntax created by John Gruber in 2004, designed to convert cleanly into HTML while staying readable even unrendered.
Can I export my Markdown as HTML?
Yes, the editor includes a one-click export that converts your Markdown source directly into clean, production-ready HTML.
Why do developers prefer Markdown for documentation?
Files stay lightweight and readable as plain text in any editor, and they're natively supported by GitHub, GitLab, and most static site generators without extra tooling.
Does this support GitHub-flavored Markdown, like tables and task lists?
Yes, tables, task lists with checkboxes, strikethrough text and fenced code blocks all render correctly, covering the GitHub-flavored extensions on top of standard Markdown that most READMEs and documentation sites rely on.
Why does my Markdown look different when I paste it into Slack or Notion?
Each platform implements its own subset of Markdown with small differences, like how nested lists or bold-inside-italic get handled, so a preview that looks correct here can render slightly differently elsewhere. Check the target platform's own formatting guide for anything that looks off after pasting.
Can I write a table without lining up every column by hand?
You don't need perfect alignment for a Markdown table to render correctly, the parser only needs the pipe characters and a header separator row in the right place, so you can write columns of uneven width and it still displays as a clean, aligned table in the preview.
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