Need smaller images for a website, an upload limit, or a crowded photo library? 4K Image Compressor lets you set a target size or reduction percentage, process multiple files together, and convert supported images into other formats.
Set a file-size target for each compression task
Pick how much smaller the file should be as a percentage, or type an exact target size. This gives you a way to prepare images for a specific upload or storage limit. Add several images for batch processing when a whole folder of photos needs smaller files.
The quality comparison tool displays the original and compressed image in different viewing modes. Use the comparison to judge visible changes alongside the resulting file size.
Compress images and convert between formats
It opens everyday photo formats such as JPG, PNG and HEIC as well as RAW, GIF, SVG and others, and saves to JPG, PNG, WEBP, HEIC or HEIF, so compressing and converting can happen in one step.
- An iPhone HEIC photo can become a WEBP for the web, for example, or an old BMP a JPG.
- PDF files can also be compressed for smaller documents.
Process files locally on the computer
4K Image Compressor works without an internet connection, and image files stay on the computer during processing. That offline workflow suits photo collections that should not be sent to an online compression service.
Pros
- Set a target size in MB, KB, or bytes
- Compress batches of images
- Convert images among JPG, PNG, WEBP, HEIC, and HEIF
- Compare original and compressed versions
System requirements: Windows 11
Can 4K Image Compressor reduce a file to a specific size?
Yes. Enter a target size or a percentage and it compresses to match.
Which image formats can it compress?
Common photo formats including JPG, PNG, WEBP and HEIC, plus RAW, GIF, SVG and several more.
Can it compress PDFs as well as images?
Yes. It includes PDF size optimization alongside image compression and format conversion.