The latest articles on DEV Community by Muhammad Yousuf (@muhammad_yousuf_83c011ea8). https://dev.to/muhammad_yousuf_83c011ea8 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3580583%2F1c672977-0434-4851-ad4d-840ed6009bed.png https://dev.to/muhammad_yousuf_83c011ea8 en Muhammad Yousuf Thu, 23 Oct 2025 18:21:51 +0000 https://dev.to/muhammad_yousuf_83c011ea8/building-xmltomd-real-time-xml-validation-with-monaco-editor-in-react-41la https://dev.to/muhammad_yousuf_83c011ea8/building-xmltomd-real-time-xml-validation-with-monaco-editor-in-react-41la <h1> Building XMLtoMD: Real-Time XML Validation with Monaco Editor in Next.js </h1> <p>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.</p> <h2> The Challenge </h2> <p>Most online converters use simple <code>&lt;textarea&gt;</code> elements. I wanted:</p> <ul> <li>Syntax highlighting</li> <li>Real-time error detection </li> <li>Professional code editor feel</li> <li>Split-screen live preview</li> </ul> <h2> Why Monaco Editor? </h2> <p>Monaco powers VS Code. Benefits:</p> <ul> <li>Rich API for custom languages</li> <li>Built-in error rendering</li> <li>Familiar to developers</li> <li>Excellent TypeScript support</li> </ul> <h2> Try It Yourself </h2> <p>XMLtoMD is completely free: <a href="https://xml-to-md.vercel.app/" rel="noopener noreferrer">https://xml-to-md.vercel.app/</a></p> <h2> What I Learned </h2> <ol> <li>Monaco's API is powerful but documentation is sparse</li> <li>Web Workers essential for large file handling</li> <li>Developer UX matters more than feature count</li> </ol> <p>Questions? Drop them below! 👇</p> markdown xml product promptengineering