Image compression is the process of reducing the file size of an image while maintaining acceptable visual quality. This is achieved through various algorithms that remove unnecessary data from the image file. Compressed images load faster on websites, use less storage space, and consume less bandwidth when shared or downloaded.

The quality reduction depends on the compression level you choose. Our tool offers quality settings from 1-100%. At higher quality settings (70-100%), the visual difference is often imperceptible while still achieving significant file size reduction. You can also use our target size feature to specify your desired file size.

We support input in JPG (JPEG), PNG, and WebP formats. For output, you can choose to keep the original format or convert to WebP, JPEG, or PNG. WebP offers the best compression ratios while maintaining quality.

Yes, absolutely. All image compression happens directly in your browser using JavaScript. Your images are never uploaded to our servers, ensuring complete privacy and security. Once you close or refresh the page, your images are gone.

Yes! You can upload multiple images at once using drag and drop or the file browser. All images will be processed and you can download them individually or as a single ZIP file for convenience.

Lossy compression permanently removes some image data to achieve smaller file sizes, which may result in slight quality reduction. Lossless compression reduces file size without removing any data, preserving original quality. For most web use cases, lossy compression at medium quality provides the best balance between file size and visual quality.

Enter your desired width and height in the resize fields. You can lock the aspect ratio using the link icon to maintain proportions. Leave fields empty to keep the original dimensions.

WebP is a modern image format developed by Google that provides superior compression compared to traditional JPEG and PNG. WebP images are typically 25-35% smaller than JPEG images at equivalent quality, while also supporting transparency. Most modern browsers fully support WebP.