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JavaScript Minifier

Reduce JavaScript file size by removing comments and unnecessary whitespace. Shows size reduction percentage. Free and private.

Last updated: March 2026

How to use JavaScript Minifier

1
Click "Select file" or drag and drop your file into the upload area
2
Configure any options if available for this tool
3
Click the convert or process button to start
4
Download your result from the result page

When to use this tool

  • Quick online conversion without installing any software
  • Works on Windows, Mac, iPhone, and Android devices
  • Files are automatically deleted after download for privacy
  • Free to use with no registration or account required

Frequently Asked Questions

What is removed?
Comments and whitespace.
Safe for production?
This is a lightweight minifier; for production use a dedicated tool like Terser.
Max input?
1MB.
Data stored?
No.