Last updated: March 2026
What Is the Markdown Previewer?
Markdown is the most popular lightweight markup language for writing technical documentation, README files, blog posts, and notes. But raw Markdown is not always easy to visualize, especially when using advanced features like tables, nested lists, or task checkboxes.
This Markdown previewer gives you a split-screen writing experience with your source on the left and a live, GitHub-styled preview on the right. Every keystroke updates the preview in real time, so you can see exactly how your document will look before publishing it.
Why Use a Live Markdown Preview?
Catch formatting issues early. Tables, nested blockquotes, and complex list structures do not always render as expected. A live preview lets you spot problems while you are still writing, not after you push to GitHub.
Write faster with confidence. When you can see the rendered output instantly, you spend less time switching between your editor and a preview window. The split-screen layout keeps both views visible at all times.
No installation needed. Unlike VS Code extensions or desktop Markdown editors, this previewer works instantly in any browser. Open the page, paste your Markdown, and start writing. It works offline once loaded and never requires a login.
GitHub-Style Preview Rendering
The preview panel is styled to match GitHub's README rendering as closely as possible. H1 and H2 headings have subtle bottom borders. Code blocks use a gray background with monospace font. Tables have bordered cells with alternating row colors for readability.
Task list checkboxes render as visual checkmarks. Blockquotes have a distinctive left border. Links appear in blue. The result is a preview that looks exactly like what you will see on GitHub, GitLab, or any platform that renders GFM.
Frequently Asked Questions
What Markdown features does the previewer support?
The previewer supports full GitHub Flavored Markdown (GFM): headings, bold, italic, strikethrough, links, images, ordered and unordered lists, task list checkboxes, blockquotes, horizontal rules, inline code, fenced code blocks with language hints, and tables with alignment.
Does the preview look like GitHub?
Yes. The preview is styled to match GitHub's README rendering, including bottom borders on H1/H2 headings, gray background code blocks, bordered tables with alternating row colors, styled blockquotes, and blue links.
Is this tool free and private?
Yes. The previewer runs entirely in your browser. Your Markdown is never sent to any server, stored, or logged. There is no signup, no account, and no limit on usage.
Can I export the result as HTML?
Yes. Switch to the 'HTML Source' tab to see the raw HTML output. You can copy it to your clipboard or download it as an .html file. Toggle 'Prettify HTML' for indented output.
Can I use this as a Markdown editor?
The tool works well as a simple Markdown editor with live preview. Type or paste Markdown on the left and see the rendered result on the right in real time. For longer documents, both panels scroll independently.