Image Converters

Image Compressor

Reduce image file size without visible quality loss, entirely in your browser. Drag in a JPEG, PNG, or WebP, adjust the quality slider, and see the before/after file size comparison before downloading.

Shows exact KB saved Browser canvas compression JPG · PNG · WebP

Drop your Image file here

or click to browse

JPGJPEGPNGWEBP
Options
25%50%75%100%

All image processing uses your browser's Canvas API; files never leave your device

Features

  • Compresses JPEG, PNG, and WebP images
  • Quality slider from 10% to 100%
  • Real-time before/after file size comparison
  • Percentage size reduction shown clearly
  • Download compressed image instantly
  • No upload to any server, processed locally

How to use it

  1. Drop your image on the upload zone or click Browse.
  2. Adjust the quality slider.
  3. See the size reduction percentage update in real time.
  4. Click Download to save the compressed image.

Use cases

  • Optimising images for website performance
  • Reducing attachment size before emailing photos
  • Compressing screenshots for documentation
  • Shrinking images before uploading to a CMS

Limitations

  • Compression uses browser image encoding, so exact results vary by browser and source image.
  • Browser canvas export may remove embedded metadata and color profile information.
  • Very large images depend on available browser memory and device performance.
See also

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Questions & answers

Frequently asked

Which format gives the best compression?

WebP typically achieves the best compression-to-quality ratio. JPEG is the most compatible. PNG is lossless by default but can be quantised for smaller files.

Will the compressed image look different?

At quality 80% or above, differences are invisible to the naked eye. Significant compression artifacts appear below 60%.