How to compress an image
- Open the Image Compressor tool.
- Select a JPG, PNG, or WebP image from your device.
- Choose an output format and quality where available.
- Review the estimated output size and download the result.
What image compression does
Image compression reduces the amount of data needed to store an image. Lossy compression can reduce file size by discarding some visual information, while lossless methods preserve image data. The right choice depends on the image and its intended use.
Choosing a format
JPEG is commonly used for photographs. PNG is useful when transparency or crisp graphics matter. WebP can provide compact images for many web uses. Not every format supports the same features, so check the result before using it.
Why file sizes vary
Compression results depend on the original format, image dimensions, visual complexity, and quality setting. Some images may become only slightly smaller, and converting formats can sometimes increase file size.