Radical Image Optimization Tool (RIOT for short) is a free image optimizer that will let you to visually adjust compression parameters while keeping minimum filesize.

Changelog:
- fixed some issues with the external PNG optimizer implementation
(replace {IMAGE_FILE} parameter is done only once. fixed;
a custom PNG is not remembered at program restart. fixed;
delete/configure buttons should not be disabled after adding an external optimizer. fixed;
modifying an external optimizer name creates orphan records. fixed. added checks for duplicate tool names;
scripts as external optimizersnot working out-of-the-box. fixed)
- bugfix: "Remove selected" button from batch mode disables when a multiple selection is made with the mouse. The keyboard selection worked. Fixed !
- fixed some issue related to automatic preview mode disabled.
- Preview button now disabled when "AUtomatic preview" is on
- improved performance of conversion functions from transparent indexed images
- changed shortcuts for "Fit in window" ( now / ) and "Actual size" (now * ). These simpler ones should increase productivity
- changed batch settings by adding an "Apply" button. to be more intuitive
- fixed an unwanted behavior with selecting and option without actualy putting a check next to it, which causes that option to apply.
- modified an error message to specify that both dimensions are required for batch resize

Program Information Category: Multimedia Type: Free Version: 0.4.1 Size: 1.05MB Works on: Windows Product page: here