HTML Viewer with Bidirectional Highlighting (Click Code ↔ Highlight Element)

📰 Dev.to · XMM17879829028

Learn to build an HTML Viewer with bidirectional highlighting to streamline your web development workflow

intermediate Published 28 Mar 2026
Action Steps
  1. Build an HTML Viewer using JavaScript and CSS to render HTML code
  2. Configure bidirectional highlighting by adding event listeners to the code viewer and the webpage
  3. Test the highlighting feature by clicking on code and elements
  4. Apply the HTML Viewer to a sample webpage to demonstrate its functionality
  5. Compare the efficiency of the HTML Viewer with existing tools
Who Needs to Know This

Frontend developers and designers can benefit from this tool to efficiently inspect and understand HTML code and its corresponding elements on a webpage

Key Insight

💡 Bidirectional highlighting enables efficient inspection and understanding of HTML code and its corresponding elements

Share This
🚀 Streamline your web dev workflow with an HTML Viewer featuring bidirectional highlighting! 💻

Full Article

I built this HTML Viewer because I was frustrated with existing tools that only let you view code or...
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