JavaScript Tools

JS Image Compressor

JS Image Compressor — compress an image in your browser by re-encoding it as JPEG. Nothing is uploaded and everything is processed locally on your device.

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

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

Preview
compressed image preview
Result



  
How to use JS Image Compressor

  
    
      
  1. Start by adding the text you want to process into JS Image Compressor.
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  2. Use the Choose an image, Quality % settings to control the result.
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  3. Watch the output update instantly while you adjust the text.
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  4. Finish by choosing Copy to take the output with you.
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About this tool

  
JS Image Compressor runs entirely in your browser. JS Image Compressor handles your input locally and returns the result instantly, with no sign-up.

  
It is designed to do one job well and stay out of your way. Nothing you enter is uploaded, and it keeps working offline once the page has loaded.

  
Frequently asked questions

  

      
What does JS Image Compressor do?
JS Image Compressor runs entirely on your device: add your input using the Choose an image, Quality % controls, and it processes it locally in real time.

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

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

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

  

  
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