How to convert javascript unicode notation code to utf-8?

Question

Is there a command line tool or online service that can convert javascript unicode notation code to utf-8?

E.g. I got this json code, but it is hard to edit in commo

Answer 1

    
    
    
    
    
    
    
    

    
        
UTF-8 To Unicode
        

          

            
Input what you want to convert：
            

          
          

            

                
            
          
        
    
    

This is a sample of convert utf-8 to unicode, do it in turn.