PNG Compressor

Reduce the file size of PNG images while keeping transparent backgrounds. Ideal for screenshots, logos and website graphics.

Maximum 100 MB per file, up to 5 files at a time.

Make sure each file is complete and in the format you selected, or the conversion may fail.

300+ formats supported
Convert between 300+ file formats in your browser.

Fast and easy
Just drop your files on the page, choose an output format and click "Convert".

How to compress files

  1. Click the “Choose Files” button to select your files.
  2. Click on the “Convert” button to start the conversion
  3. When the status change to “Done” click the “Download” button

When to compress PNG images

PNG is lossless, so screenshots, logos and graphics saved as PNG can be surprisingly large. Compressing reduces the number of colours and optimises how the data is stored, often cutting the size by more than half.

What is kept

Transparent backgrounds are kept. Images with flat colours, text and simple graphics compress best; detailed photos saved as PNG may be smaller as JPG instead.

Frequently asked questions

Yes. Compressed PNGs keep their transparency.

Photos stored as PNG don’t compress well. If you don’t need transparency, convert the photo to JPG instead.

Colour reduction can slightly change smooth gradients. Screenshots, text and logos usually look the same.

Up to 5 files at a time, each up to 100 MB.