Image Compressor

Make image files smaller. Compare previews and adjust quality and dimensions.

Processed on this page. No uploads. Your input is not saved.

This tool needs JavaScript and a modern browser with local image processing support.

How should I choose the settings?

Start with the original dimensions. For a form upload limit, choose JPEG and enter the maximum KB. We try up to ten quality settings and check actual bytes. If none meet your limit, the smallest tested result is marked clearly. Reduce dimensions or increase the limit yourself; always inspect detail before sharing.

What happens to transparency and the original photo?

PNG and WebP preserve transparency; JPEG uses a white background. PNG reduces size mainly through resizing, so its quality slider is disabled. Re-encoding removes original metadata such as EXIF and may change colors or detail. The original file is never overwritten. One static image at a time; GIF, HEIC, SVG, animation and oversized images are not supported.