Free · Private · Browser-based

Bulk Image Compressor

Compress JPG, PNG and WebP images together, control output quality, optionally cap oversized dimensions and download the optimized batch as a ZIP.

Batch JPG, PNG and WebP Adjustable quality Optional dimension cap Local ZIP export

Image queue

Selected images will appear here

Your images will appear here

Browser workflow

How to use the image compressor

A focused three-step workflow designed for complete folders rather than one file at a time.

1

Add your image folder

Choose or drop multiple JPG, PNG and WebP files into the local queue.

2

Balance size and quality

Select the output format, set quality and optionally limit the longest side.

3

Download optimized files

Compare original and output sizes, then save individual files or one ZIP.

Where this tool fits

Faster websites

Reduce image transfer weight before publishing product pages, articles and landing pages.

Marketplace uploads

Bring a complete product image set under marketplace upload limits.

Email and sharing

Make image folders easier to attach, send and archive without resizing files one by one.

Storage savings

Create lighter delivery copies while preserving the original source files on your device.

Choose a practical quality level

Photographs often retain strong visual quality between 70 and 85. Graphics with text or sharp edges may need a higher setting.

WebP generally produces smaller web-ready files, while JPG remains useful when compatibility matters most.

Dimensions matter as much as compression

A high-quality 5000-pixel photo is still unnecessarily heavy when it is displayed at 1200 pixels. Use the longest-side cap to remove unused resolution.

Tips for better results

  • Use WebP for modern websites and JPG for broad compatibility.
  • Keep a higher quality level for screenshots and images containing text.
  • Do not enlarge images during compression; it increases dimensions without adding detail.
  • Compare the output at its intended display size before publishing.

Frequently asked questions

Are images uploaded while they are compressed?

No. Compression runs in your browser and the selected images stay on your device.

Which formats can I compress?

The compressor accepts JPG, PNG and WebP and can keep the source format or export JPG or WebP.

Will compression change image dimensions?

Not unless you enable the longest-side limit. With that option disabled, the original pixel dimensions are preserved.

Why is a PNG sometimes still large?

PNG is lossless and is often inefficient for detailed photographs. Converting a photo to WebP or JPG usually saves more space.

Can I download all outputs together?

Yes. The completed batch is packaged into one ZIP file.

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