Radical Image Optimization Tool (RIOT) is a free image optimizer that will let you to visually adjust compression parameters. Developed by Lucian Sabo
License: Free
Optimus.io is a versatile image optimization tool that excels in batch processing, API access, and cost efficiency, making it suitable for developers and businesses. In contrast, RIOT offers real-time optimization, a desktop application, and a mobile app, making it ideal for users who need quick and high-quality image edits on the go.