RIOT for Windows

Radical Image Optimization Tool

RIOT is a powerful image optimization tool that is available for free on your Windows 64-bit computer. A portable installer is available for Windows 32-bit as well as 64-bit. The app includes plugins for XnView and IrfanView as well as GIMP and many other programs.

Image optimization is essential to reduce load times on websites. RIOT reduces the size of your images without compromising on quality. Your images can be exported as web-optimized Jpeg, GIF, or PNG. The compression is automatic and you can control the quality of your output files regardless of format. PhotoBulk can also be used to rename images and share some of the RIOT features.

The software's interface is simple and all options are clearly visible. It displays the original size and the processed image. Dual-pane allows you to compare the original image with the optimized one. You can adjust settings using the toolbar at bottom to achieve the desired result. You can see the changes and the updated file size right away.

The app can be used to optimize bitmaps, PSD, popular HDR and specific RAW images. Drag and drop photos to optimize in batches. You can make JPEG adjustments by choosing a quality or chroma subsampling setting.

Chroma subsampling allows you to store colour information at a lower level of quality. Although it reduces the image's size, the changes are not obvious to the human eye. Zoom in and you will see the difference. You can choose from none, low, medium or high. The lower the level, the more information the image will retain. GIF and PNG use colour reduction to reduce bit depth and increase colours.

RIOT can also reduce the image size by removing metadata like EXIF, IPTC and XMP.

RIOT allows novice users to rotate, flip, resize and compress images files. Professionals can use advanced options to adjust brightness and contrast as well as gamma output. The preview window allows them to instantly see the changes. The developer included a detailed help file that explains the terms and algorithms used to compress images.

You can download RIOT free of charge to adjust different settings and resize or optimize images. It is easy to use for both professionals and beginners. Batch process multiple photos and instantly see the results in the preview window.