HTML Formatter & Minifier

Beautify, compress, validate, and compare HTML in seconds.

Input HTML

Output

0 chars

Diff-like Preview

Line-by-line comparison
Before

        

        

          
After

          

        

      

      
Legend: unchanged lines are neutral, removed lines are red, added lines are green.

    


    

      
FAQ

      

        

          Is my HTML uploaded anywhere?
          
No. This tool is fully client-side. Your input stays in your browser.

        

        

          What does the validation check do?
          
It runs a basic stack-based tag heuristic to detect common unclosed or mismatched tags. It is fast and practical, but not a full HTML spec validator.

        

        

          Can I export formatted output?
          
Yes. Use Copy to place output on your clipboard or Download to save it as an .html file.