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 and default quality, then compare file sizes. If needed, lower the quality or longest side. This tool does not promise a specific KB target and will clearly tell you if the output is larger.

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.