Kraken.io in Press

"The solution is image optimization and none do it better than the guys at Kraken.io. Kraken.io is the web’s best image optimization engine. They often manage to reduce an image size by a staggering amount (80-90% reduction is not unlikely), while keeping image quality at an unbelievably high level. It really needs to be seen to be believed [...]"
— Thrive Themes

"In conclusion, Kraken.io is a great web service to replace existing desktop apps such as ImageOptim. Pro users also have the neat ability to use the API, so that images can be optimized on a website’s deployment. As long as you’re happy with the default settings Kraken.io provides, however, it’s a great service and will help you maintain high performance on your own website."
— Andrew Munsell

"With features from API integration to image resizing, it’s no wonder why Flude recommends Kraken.io to increase app speed. Kraken’s resizing feature scales your images to the sizes that suit your audience’s primary mobile platforms. The company’s motto maintains that “every single pixel counts”- and the work reflects this ethos."
— The Next Web

"Kraken.io is another such web service that aims to help you with compressing your images without compromising their quality. It differs from TinyPNG and JPEGmini in that it supports multiple image formats including PNG, JPEG, GIF, WebP, SVG, AVIF, HEIC and even PDF. It also features lossless and lossy optimization modes, giving you flexibility and choice between quality and compression."
— AddictiveTips

"Kraken.io reduces the file size of jpg, gif and png graphics without affecting the visual appearance. [...] A major advantage of the Kraken.io is upload by drag and drop and the ability to process up to 20 files in parallel."
— Kulturbanause

"Kraken.io is one of my favorites, not just because it has a cool name, but because the interface is sleek and nearly dummy-proof. [...] Additionally, you can use the Kraken.io uploader interface (which also includes a drag-and-drop option vs. browsing and selecting) to send images from your local system to compress or you can give them the URL for the image you want to compress (which means you won’t have to download an image that you’ve already posted somewhere, just to upload it to Kraken.io before downloading the resultant compressed file!)."
— Freeware Genius