Image Compressor

Compress Images Online — Free

Shrink an image's file size while keeping it looking sharp — useful for speeding up a website, fitting under an upload limit, or just saving storage space.

How to Compress an Image

Upload your image and adjust the quality slider to balance file size against visual quality — a live before-and-after file size comparison updates as you move it. Once it looks right, download the compressed version.

How Image Compression Works

Formats like JPEG and WebP are "lossy," meaning they can discard some visual information in exchange for a much smaller file — usually information the eye barely notices at normal viewing sizes, like fine detail in areas with lots of similar color. Pushing the quality slider lower removes more of that information for a smaller file; pushing it higher keeps more detail at the cost of file size. The right balance depends on the image and what it's being used for — a photo being viewed full-screen needs a gentler touch than a small thumbnail.

Good Uses for This Tool

Speeding up a slow-loading website by shrinking oversized images, getting a photo under an email attachment or upload size limit, reducing storage space used by a large photo library, or preparing images for a platform that penalizes large file sizes.

Is It Actually Private?

Yes. Compression happens entirely in your browser — your image is never uploaded to a server.