Image Optimization Mode Kraken.io offers several optimization modes The mode you select should depend on your specific requirements - such as the type of image that you are compressing, and the target audience of your images. Lossy Our intelligent lossy optimization typically produces savings of at least 60% of the initial file weight; with savings of 80% to 90% occurring frequently.
Here is a list of best free image optimizer online tools to compress a JPEG or PNG. Image optimization lets speed up your website efficiently. The following image optimizer for web will effectively compress image file sizes without losing visual image quality.
Our default intelligent lossy algorithm has been specifically designed to always produces images of outstanding quality, and never of unacceptable quality degradation. In most cases, you will not be able to tell the optimized result from the original, even upon close inspection. We recommend this mode to most of our users, and for most use-cases. Lossless This mode will save as much file weight as possible without altering a single pixel, hence the name 'lossless' - meaning no information is lost whatsoever. Use this mode when your requirement is that the image should retain 100% of its initial visual information - such as for sensitive brand and marketing visuals. Expert Expert view is designed for users who are already familiar with image processing and optimization.
Using this mode you can set different quality levels for lossy JPEG and PNG optimization, preserve certain entries in the EXIF metadata, and automatically orient your images. You can even set a custom chroma subsampling value for JPEG images. Image Resizing Strategies When you need to generate sets of images in different sizes or dimensions, our easy-to-use image resizing interface has you covered. Just specify your required dimensions and pick one of several strategies for resizing your images, prior to optimization: Exact Resize to exact width and height.