📝 Markdown Previewer
Write markdown on the left, see the live preview on the right. Export to HTML, download .md files, and use toolbar shortcuts. Free, no signup.
What is a Markdown Previewer?
A markdown previewer is an online tool that renders Markdown syntax into formatted HTML in real time as you type. Markdown is a lightweight plain-text format used by developers, technical writers, and bloggers to write structured content without touching raw HTML. You write simple syntax like **bold** or ## Heading, and a markdown previewer instantly shows you the fully formatted result — headings, bold text, lists, tables, code blocks, and links — exactly as they will appear when published. This markdown previewer supports the full GitHub Flavored Markdown (GFM) specification.
How to Use This Markdown Previewer
Open the Live Preview tab and start typing markdown in the left panel — the right panel updates instantly on every keystroke. Use the formatting toolbar above the editor to insert syntax without memorising it: click B for bold, I for italic, the link icon to insert a hyperlink, or the code button for inline code. For copying or exporting, use the toolbar above the right panel. This markdown previewer also offers a dedicated Markdown to HTML tab where you can paste any markdown and receive the raw HTML output ready to embed in a website or CMS.
Markdown Syntax Quick Reference
Markdown's core strength is that its syntax is human-readable even before rendering. A line starting with # becomes an H1 heading, ## an H2, up to ###### for H6. Wrap text with **double asterisks** for bold, *single asterisks* for italic, and ~~tildes~~ for strikethrough. Fenced code blocks use triple backticks with an optional language name for syntax-highlighted output. Tables are built with pipe | separators and a dashed separator row below the header. GFM extends standard Markdown with task lists, tables, and autolinked URLs — all supported by this markdown previewer.
Markdown Previewer for Developers
Developers use a markdown previewer while writing README files, documentation, wiki pages, blog posts, and API guides. The sync scroll feature means that as you write in the editor, the preview panel tracks the same position — essential when working on long documents. This markdown previewer runs entirely in your browser via the marked.js parsing library — no content is sent to any server, which matters when writing documentation that includes internal project details, API keys in examples, or proprietary technical content.
Markdown vs HTML — When to Use Each
Markdown is the right choice when you want to write quickly and readably — for README files, documentation, content management systems, and anywhere a non-technical collaborator might edit the file. HTML gives you precise control over structure and styling but is slow to write and hard to read in source form. The Markdown to HTML export in this markdown previewer bridges the two: write clean markdown, then export the generated HTML for direct use in templates, email campaigns, or static sites where you need the raw markup.
- Use
#through######for headings H1–H6 - Fenced code blocks with ``` support language hints for syntax highlighting
- GFM tables use
|pipe separators — three dashes define the header row - Sync scroll keeps the preview aligned with your cursor position while editing
- Download .md saves your work as a proper Markdown file for version control
- The HTML export is clean, semantic output — no wrapper divs or class attributes
Frequently Asked Questions
What is a markdown previewer?
A markdown previewer is an online tool that renders Markdown syntax into formatted HTML in real time. It lets you write plain-text markdown and instantly see how headings, lists, bold text, tables, and code blocks will look when published — without needing to know HTML.
How does this markdown previewer work?
This markdown previewer uses the marked.js library to parse your markdown and renders it as formatted HTML in the preview panel on every keystroke. The Markdown to HTML tab converts your content to raw HTML you can copy or download. Everything runs locally in your browser — no data is sent to any server.
What markdown syntax is supported?
Full GitHub Flavored Markdown (GFM) is supported: headings H1–H6, bold, italic, strikethrough, ordered and unordered lists (including nested), fenced and inline code blocks with language hints, blockquotes, GFM tables, links, images, and horizontal rules.
Can I export markdown to HTML?
Yes. The Markdown to HTML tab converts your markdown into raw HTML code. Copy it to the clipboard or download it as a .html file. From the Live Preview tab you can also copy the rendered HTML or download your markdown source as a .md file.
Does this markdown previewer support tables?
Yes, GFM tables are fully supported. Use the pipe character | to separate columns and three dashes --- below the header row to define it. Tables render with borders and alternating row shading in the preview panel.
Is this markdown previewer free?
Yes, completely free with no signup required. Your markdown content never leaves your browser — nothing is sent to any server. Use this markdown previewer as many times as you like with no limits.