Building XMLtoMD: Real-Time XML Validation with Monaco Editor in React

#markdown #xml #product #promptengineering

Building XMLtoMD: Real-Time XML Validation with Monaco Editor in Next.js

I recently launched XMLtoMD, a free XML to Markdown converter with professional code editor UX. In this post, I'll share how I implemented real-time XML syntax validation using Monaco Editor.

The Challenge

Most online converters use simple <textarea> elements. I wanted:

Syntax highlighting
Real-time error detection
Professional code editor feel
Split-screen live preview

Why Monaco Editor?

Monaco powers VS Code. Benefits:

Rich API for custom languages
Built-in error rendering
Familiar to developers
Excellent TypeScript support

Try It Yourself

XMLtoMD is completely free: https://xml-to-md.vercel.app/

What I Learned

Monaco's API is powerful but documentation is sparse
Web Workers essential for large file handling
Developer UX matters more than feature count

Questions? Drop them below! 👇

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