Compressor.io is an online tool that allows users to optimize and compress various image formats including JPEG, PNG, SVG, GIF, and WEBP. The website provides the option to resize images by specifying dimensions in pixels or percentage, with a maximum size of 10000 x 10000 pixels. Users can choose to keep EXIF data and fix orientation when compressing images. The compression process allows users to select from different image quality options for JPEG, PNG, and WEBP formats. The compression type can be set to lossy, lossless, or custom. The website allows users to drop images or browse them for compression, with a maximum file size of 10 MB. Compressor.io aims to help optimize website performance by reducing file sizes while maintaining image quality. By compressing assets, users can save storage space and improve the loading speed of their websites. The tool also emphasizes its benefits for SEO, as compressed images can improve SEO ranking and increase visibility in search engines. Compressor.io offers a paid premium version with advanced compression settings, image resizing, automatic file renaming, and more.