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Image optimizer

Compress and optimize images to reduce file size; the result depends on the image and selected setting.

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JPG, PNG, WebP, AVIF. You can select multiple images.
Choose another format to convert all selected images.
Higher quality produces larger files.
Batch result
Image Original size New size Change

Image optimizer

Optimize one or multiple JPG, PNG, WebP, or AVIF images locally in your browser. Choose the output format and quality from 1 to 100, then review and download the results. Format availability depends on browser support.

How to use Image optimizer

  1. Select one or multiple supported images, then choose an output format.
  2. Set quality from 1 to 100.
  3. Run the optimization.
  4. Compare appearance and file size before downloading.

Key features of Image optimizer

  1. JPG, PNG, WebP, and AVIF input
  2. Multiple images in one batch
  3. Quality control from 1 to 100
  4. Optimized download
  5. Useful for web assets
  6. Result varies by image and format

Image optimization versus format conversion

Optimization focuses on file size and quality, and the output-format control also supports conversion where available. You can also use PNG to WebP or JPG to WebP when the file format must also change.

Frequently asked questions about Image optimizer

Does optimization always make the file smaller?

No.

Does quality mean the same for every format?

No, encoders and formats handle it differently.

Can I upload multiple images?

Yes. Select multiple supported images in the file picker to process them together.

Will dimensions change?

The form exposes quality rather than resize controls.

Can quality be lost?

Yes, depending on the source and setting.

What should I compare?

Check file size, sharp text, edges, transparency, and visible artifacts.

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