reSmush.it

Kraken.io is a robust, ultra-fast image optimizer and compressor with best-in-class algorithms. We'll save you bandwidth and storage space and will dramatically improve your website’s load times. Designers, Developers, WordPress and Magento users - even enthusiasts all over the world use Kraken.io. All plans start out as a FREE Account which comes with 100 MB of testing quota. No credit card is required to sign up.

imgproxy – the fastest, most flexible image processing server! imgproxy is a high-performance, secure, and open-source image processing server that gives you full control over your media pipeline. Whether you’re looking for a faster alternative to existing open-source tools, moving away from an expensive SaaS solution, or replacing a costly in-house system, imgproxy is built to handle all your image processing needs. Unlike SaaS solutions, imgproxy runs on your infrastructure, eliminating vendor lock-in and reducing cloud costs. Compared to other open-source alternatives, it is significantly faster, more secure, and easier to scale. And unlike custom-built in-house solutions, imgproxy requires no ongoing development or maintenance, saving engineering resources while delivering enterprise-grade performance. For businesses that need even more power, imgproxy Pro offers additional features, enhanced image quality, and advanced security options.