Markdown to HTML Converter

Convert Markdown text to HTML.

Overview

The Markdown to HTML Converter is an online utility built with Blazor (C#) that transforms Markdown content into clean, standards-compliant HTML. It is designed for developers, technical writers, and content creators who want a fast and reliable way to preview or generate HTML output from Markdown syntax.

Under the hood, this tool uses the popular Markdig NuGet package, a high-performance Markdown processor for .NET that fully complies with the CommonMark specification and supports advanced extensions.

What the Tool Does

This tool converts Markdown text into HTML by:

• Accepting .md or .txt file uploads
• Allowing users to write or paste Markdown directly into a text area
• Parsing the Markdown syntax using Markdig
• Outputting the generated HTML markup into a dedicated output field

The resulting HTML can be copied and used directly in websites, CMS platforms, static site generators, or Blazor components.

How to Use the Tool

1. Provide Markdown Input

   • Upload a .md or .txt file
     or
   • Paste or type Markdown content into the input text area

2. Generate HTML

   • Click the Generate button

3. Copy the Output

   • The converted HTML will appear in the output text area
   • Copy and use it anywhere HTML is supported

Key Terms Explained

Markdown

Markdown is a lightweight markup language used to format text using plain characters. It is commonly used for documentation, README files, blogs, and static websites.

Example:

## Hello World
This is **bold** and this is *italic*.

HTML (HyperText Markup Language)

HTML is the standard markup language for creating web pages. Markdown is often converted into HTML before being rendered in a browser.

Markdig

Markdig is a fast, extensible Markdown processor for .NET. It supports:

• CommonMark compliance
• GitHub-Flavored Markdown (GFM)
• Tables, footnotes, task lists
• Custom extensions

Example: Implementing Markdown to HTML in C#

Below is a simple example showing how you can implement your own Markdown-to-HTML converter using Markdig in a C# application.

1. Install the Markdig NuGet Package

dotnet add package Markdig

2. Create a Markdown Conversion Function

using Markdig;

public static class MarkdownConverter
{
    public static string ConvertToHtml(string markdown)
    {
        if (string.IsNullOrWhiteSpace(markdown))
            return string.Empty;

        var pipeline = new MarkdownPipelineBuilder()
            .UseAdvancedExtensions()
            .Build();

        return Markdown.ToHtml(markdown, pipeline);
    }
}

3. Usage Example

string markdownText = @"
# Markdown to HTML

This is **bold**, this is *italic*, and this is a list:

- Item 1
- Item 2
- Item 3
";

string html = MarkdownConverter.ConvertToHtml(markdownText);

// html now contains valid HTML output

Why Use Markdig?

• Fast and efficient for large documents
• Highly extensible with plugin support
• Production-ready and widely used in .NET projects
• Ideal for Blazor, ASP.NET, and console applications

Use Cases

• Preview Markdown content before publishing
• Convert documentation into HTML
• Generate static site content
• Render Markdown dynamically in Blazor applications
• Build custom CMS or blogging platforms

Conclusion

The Markdown to HTML Converter provides a simple yet powerful way to transform Markdown into HTML using modern .NET tooling. Whether you use the online tool or implement the logic yourself with Markdig, it offers a reliable foundation for Markdown processing in any C# or Blazor project.