Markdown Preview

Write Markdown and see the HTML preview in real time

Markdown Input
Live Preview
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What is Markdown Preview?

Markdown is a lightweight markup language that allows you to write formatted text using plain text syntax. It was created by John Gruber in 2004 with the goal of making it easy to write for the web. Today, Markdown is used everywhere: from GitHub README files to documentation, forum posts, and even note‑taking apps like Obsidian and Notion.

This tool lets you write Markdown on the left side and instantly see the rendered HTML on the right. It supports headings, lists, bold, italic, links, images, code blocks, and more. Whether you're documenting code, writing a blog post, or just want to see how your Markdown will look, this preview tool gives you immediate feedback.

All processing happens locally in your browser – your text never leaves your device, ensuring privacy and speed. You can also copy the generated HTML for use in websites or emails.

How to Use

Step 1: Type or paste your Markdown into the left input area. You'll see a sample text to get you started.
Step 2: Click the "Refresh Preview" button to see the rendered HTML. The preview updates instantly.
Step 3: To copy the generated HTML for use elsewhere, click "Copy HTML".
Step 4: Use the "Clear" button to reset both input and output.

The tool supports the most common Markdown syntax: headings (#, ##, ###), bold (** **), italic (* *), lists (- or *), links [text](url), images ![alt](url), and code blocks with triple backticks. You can also combine styles for rich formatting.

Examples

Heading: # Main Title → <h1>Main Title</h1>
Bold: **bold text** → <strong>bold text</strong>
List: - item 1 → <ul><li>item 1</li></ul>
Link: [ToolGram](https://toolgram-dev.github.io) → <a href="https://toolgram-dev.github.io">ToolGram</a>
Code block: ```js\nconsole.log("hello");\n``` → <pre><code>console.log("hello");</code></pre>

Who Uses Markdown Preview?

  • Developers – writing README files, documentation, and project notes.
  • Technical Writers – creating clean, version‑controlled documentation.
  • Bloggers – preparing posts in Markdown before publishing.
  • Students – formatting assignments and notes.
  • GitHub Users – previewing Markdown before committing to repositories.
  • Anyone who wants to write formatted text without complex HTML.

Pro Tips

  • Use triple backticks with a language name (e.g., ```js) for syntax‑highlighted code blocks.
  • You can embed HTML directly in Markdown – it will pass through unchanged.
  • For footnotes, use `[^1]` notation; they are supported in many Markdown flavors.
  • Combine bold and italic: `***bold italic***` works.
  • Use the "Copy HTML" button to get clean HTML output for use in emails or web pages.
  • Experiment with tables: `| Header | Header |\n|--------|--------|\n| Cell | Cell |`

Frequently Asked Questions

Does it support GitHub Flavored Markdown (GFM)?
Yes, it supports many GFM features including tables, task lists (e.g., `- [x] done`), strikethrough (`~~text~~`), and automatic URL linking. While not 100% comprehensive, it covers most common needs.
Can I use this tool offline?
Absolutely. Once the page is loaded, all processing happens in your browser. No internet connection is required to preview Markdown after the first load.
Is my data sent to a server?
No. Everything stays in your browser. Your Markdown is never transmitted anywhere.
Can I export the HTML?
Yes, click the "Copy HTML" button to copy the generated HTML to your clipboard. You can then paste it into any editor or web page.
Does it support images?
Yes, using `![alt text](image-url.jpg)`. Images will be displayed in the preview. Note that external images must be accessible online.
Can I preview code blocks with syntax highlighting?
Yes, specify the language after the opening triple backticks (e.g., ```python). The preview will apply basic styling; for full syntax coloring, you may need additional CSS, but the structure is preserved.
What if my Markdown is invalid?
The tool will still attempt to render it. You may see stray characters or unexpected formatting. Double-check syntax, especially unmatched brackets or code block delimiters.
Can I preview LaTeX math?
This basic preview does not support LaTeX. For math, consider using a dedicated Markdown editor with MathJax support.