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. It uses with a side by side (dual view) or single view interface to compare the original with the optimized image in real time and instantly see the resulting file size. It is lightweight, fast and simple to use, yet powerful for advanced users. You will be able to control compression, number of colors, metadata settings and much more, and select image format (JPG, GIF or PNG) for your output file.
RIOT 0.6.2 changelog:
- fixed clipboard lock
- fixed keep original date/time if in-place optimization
- prevent delete of original if in-place optimization and “Delete original files” are used
- fixed keep original file extension when saving files in batch
- fixed keep original file extension when saving files from the main window
- fixed file extension filter when using the Save As dialog for less common JPEG extensions
- fixed render images after Auto resize dialog is discarded
- fixed multi-monitor issue: restore position only if the saved position would be inside the visible area
- fixed overriding settings in “Auto, Custom Format mode” did not switched the mode the Manual
- fixed “Auto, Custom Format mode” blending transparency for JPEG format (white color usad now by default instead of black, but should use the last chosen color)
- improved check for updates procedure. now enabled by default. does not create temporary files anymore
- added minimum compression setting to PNG (zlib level 1). This is useful for using with an external optimizer or reducing colors before final compression
- png compression settings “minimum” and “low” are always remembered upon program restart if save settings on exit is enabled.
Download: RIOT 0.6.2 | | Portable | ~2.0 MB (Freeware)
Download: RIOT plugin for The GIMP, IrfanView, XnView, etc.. | 1.9 MB
View: RIOT Website