Reduce the size of your JPEG files without losing quality using this free online tool. Upload up to 20 images, adjust the compression ratio, and download them individually or in a ZIP archive. It can customize your JPEG and PNG images to meet specific size requirements of 20KB, 50KB, and 100 KB by reducing image size. How to Reduce Image Size in KB: Upload Your Image: Begin by uploading the image you need to reduce in size. Enter Compression Size: Enter the desired KB (default 100kb) size you want your image to be compressed to. Compress JPEG and JPG Images Compress JPG & reduce image size online for free with the best JPEG Compressor. To reduce JPEG size online, simply click on Choose File, select the JPEG image, wait for the reduction process to complete and then download the optimized image.