JavaScript Tools

JS Compressor

JS Compressor — compress JavaScript to a smaller, production-ready size. It works entirely in your browser, with nothing uploaded to any server.

Client-sideRuns entirely in your browser — your data never leaves your device.

JS Compressor is a free JavaScript Tools utility that runs entirely in your browser — nothing you enter is uploaded.

JavaScript input
Minified JavaScript



  
How to use JS Compressor

  
    
      
  1. Type or paste your text into JS Compressor's input area.
    2. 
      
  2. The result is computed live in your browser as you edit the input.
    3. 
      
  3. Finish by choosing Copy to take the output with you.
    4. 
  

  
About this tool

  
JS Compressor is a static, client-side tool with no backend. JS Compressor is a free JavaScript Tools utility that runs in your browser, doing its work on the input you provide without a backend.

  
Because it runs on your device, it is fast and private and works offline once loaded. Your input never leaves the page, and no account or install is required.

  
Frequently asked questions

  

      
What does JS Compressor do?
Use JS Compressor to process your input without installing anything; everything happens client-side.

      
Is JS Compressor free to use?
Yes — JS Compressor is completely free, with no usage limits.

      
Does JS Compressor upload my data?
No — JS Compressor processes everything locally in your browser, so nothing you enter is uploaded or stored.

      
Does JS Compressor work offline?
Once the page has loaded, JS Compressor keeps working with no network connection.

  

  
Related javascript tools