Developer Tools

Beautify JavaScript online

Beautify and reformat JavaScript code for readability.

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JS Beautifier

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Drag & drop a file here, or choose a file.
Input
Output

How to use

  1. Paste JavaScript into the input.
  2. Click Beautify to format the code.
  3. Copy or download the output.

Best practices

  • For best performance, try with smaller inputs first.
  • Preview the output before downloading or sharing it.
  • Avoid pasting sensitive data on shared devices.

Privacy

Some tools run in your browser. Some may require server processing depending on the feature.

Examples
Example 1
Input
function hello(name){console.log('Hello '+name)}
Output

                                    

                                        
                                    

                                

                            

                        

                        

                            

                                

                                    
Example 2

                                

                            

                            

                                

                                    
Input

                                    
if(a){b();}else{c();}

                                    

                                            
                                        
                                    

                                

                                

                                    
Output

                                    

                                    

                                        
                                    

                                

                            

                        

                

            


        

            

                
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