How to Preview and Convert Markdown to HTML Online

Markdown is a lightweight markup language that's easy to write and widely used for documentation, README files, blog posts, and more. However, Markdown needs to be converted to HTML for web display. This guide shows you how to preview and convert Markdown to HTML using fixie.tools — a free online Markdown editor with live preview, syntax highlighting, and instant HTML conversion, no signup required.

Step 1: Open the Markdown Preview Tool

Go to fixie.tools/markdown in your web browser. The tool runs entirely in your browser, processing your Markdown locally without uploading anything to servers. No account creation is required. The tool works on all devices including mobile phones and tablets.

Step 2: Enter Your Markdown Content

Type or paste your Markdown content into the editor on the left side. The editor supports all standard Markdown syntax including headings (#), bold (**text**), italic (*text*), lists (- or 1.), links ([text](url)), images (![alt](url)), code blocks (```), tables, and more. The editor includes syntax highlighting to help you spot formatting errors.

Step 3: View the Live Preview

As you type, the right panel displays a live HTML preview of your rendered Markdown. The preview updates instantly as you edit, showing exactly how your content will look when published. This real-time feedback helps you catch formatting issues immediately rather than discovering them after publishing.

Step 4: Use Markdown Extensions

The tool supports common Markdown extensions like GitHub Flavored Markdown (GFM), which adds support for tables, task lists (- [ ] and - [x]), strikethrough (~~text~~), and automatic URL linking. You can also use footnotes, definition lists, and syntax-highlighted code blocks with language identifiers (```javascript).

Step 5: Copy or Export HTML

Once you're satisfied with your Markdown, click the 'Copy HTML' button to copy the generated HTML code to your clipboard. You can then paste this HTML into your website, blog, or content management system. Alternatively, use the 'Download' button to save your Markdown or HTML as a file for later use.

Try It Now — Free, No Signup →

Frequently Asked Questions

Is the Markdown preview tool free?

Yes, Fixie's Markdown Preview & Converter is completely free with no signup requirements, no file size limits, and no restrictions on usage. Unlike some Markdown editors that require accounts or limit features, Fixie provides full functionality for free and works entirely in your browser for privacy.

What's the difference between Markdown and HTML?

Markdown is a simple, human-readable text format using symbols like # for headings and ** for bold. HTML is the markup language browsers understand. Markdown is easier to write and read, but needs to be converted to HTML for web display. Most content management systems and static site generators support Markdown because it's faster to write than HTML.

Does the tool support GitHub Flavored Markdown?

Yes, the tool supports GitHub Flavored Markdown (GFM), which extends standard Markdown with useful features like tables, task lists, strikethrough, and automatic URL linking. This makes it compatible with Markdown used in GitHub README files, issues, and pull requests.

Can I use this for writing blog posts?

Absolutely. Many bloggers and technical writers use Markdown for drafting content because it's faster than writing HTML and more portable than proprietary formats. Write your content in Markdown using Fixie's live preview, then copy the generated HTML into your blog platform or CMS like WordPress, Ghost, or any static site generator.

Does my Markdown get uploaded to servers?

No, all Markdown processing happens entirely in your browser using JavaScript. Your content never leaves your device and is never uploaded to any server. This ensures complete privacy for sensitive documents or unpublished content.

Related Tools

HTML Entity Encoder

Encode HTML special characters

Text Diff Tool

Compare different versions of Markdown documents

Lorem Ipsum Generator

Generate placeholder text for Markdown testing