Image Compressor

It depends on the original image and quality setting. At 75% quality, JPEG images typically shrink 60-80%. PNG images see 10-50% reduction (PNG doesn't support lossy compression the same way). WebP can achieve 30% smaller than JPEG at the same quality level. A 5MB JPEG photo typically compresses to 500KB-1.5MB at 75% quality.

At 75-90% quality, the difference is virtually invisible to the human eye — this is why it's called "visually lossless" compression. At 50% quality, you may notice slight blurring on close inspection, but it's fine for web and social media. Below 30%, quality degradation becomes visible and is only suitable for thumbnails.

Up to 20 images per batch, each up to 10MB. Since processing happens in your browser, very large batches may slow down on older devices. For hundreds of images, process in batches of 20. There is no daily limit — use it as many times as you need.

Yes. PNG images with transparency are compressed while preserving the alpha channel. However, PNG only supports lossless compression, so file size reduction is more limited than JPEG. For maximum savings on transparent images, choose "Force WebP" output — WebP supports both transparency and lossy compression.

WebP is a modern image format by Google that provides 30% better compression than JPEG at the same quality. It supports both lossy and lossless compression, plus transparency. All modern browsers (Chrome, Firefox, Edge, Safari 14+) support it. If your website targets modern browsers, WebP is the best choice for web images.