RIOT (Radical Image Optimization Tool) has an easy to use interface to compare the original with the optimized image in real time and instantly see the resulting file size. The image optimizer is lightweight, fast and simple to use, yet powerful for advanced users.
After a 3 years hiatus, RIOT has a new version: 0.6
Here are the new features
New “Auto, Original Format” mode
This new automatic operating mode optimizes with the best settings while keeping the original format. Use this mode when you can’t change the format, even if other format would prove to be more efficient.
The operating modes have been renamed to make things clearer on what the program does.
Keep folder structure in batch mode
This long expected feature is finally here. You now have a new batch mode option to save the image in original folder. Used along with the new “Original Format” mode you can optimize a folder of images with subfolders in-place.
Previously RIOT was only able to save all images in a chosen output folder.
Backup processed images
I’ve added an option in batch mode to backup original images if they get overwritten. The original image will be suffixed with the word “original”.
* fixed behavior for using the original image if smaller. the original is chosen only if we use an option from the batch mode
* fixed resize issues when keep aspect ratio is checked and both dimensions are provided