Latest version (0.4.6) – 25.02.2011
Standalone application installer (Windows 2000 or newer including XP, Vista, Windows 7)
See the history of changes (changelog).
RIOT as plug-in for other applications
RIOT plugin for The GIMP, IrfanView, XnView and other supporting applications
Plug-ins for RIOT
Even if RIOT is available as plug-in for other programs like IrfanView or GIMP, RIOT itself can be extended with plug-ins to enhance it’s functionality.
Currently only input plug-ins are supported. In the future I hope more plug-in types will be added.
Download the RAW + HDR plugin package – allows you to open HDR, OpenEXR and RAW camera images
Special notice to IrfanView users
IrfanView has bundled into the plugin collection the Lite version of the RIOT plugin.
Here you can find the extended version (also FREE) that goes beyond Lite version offering extended functionality.
I always recommend the extended version over the Lite one.
Read the difference between Lite and Extended

You like Radical Image Optimization Tool ?
Then you can donate a little money if you use this program at work
or if you simply want to express your gratitude.
Portable version
The program is portable. This means you can download RIOT as ZIP archive, extract and use. No install required.
Old version archive
(Contains an old verion that works with Windows 9x)
Visit archive
Mirrors
The latest standalone version can be downloaded also from:
Sponsors
CRIOSWEB – web development, web design and web hosting company from Romania
Awards
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4 comments
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April 19, 2011 at 5:53 am
Harry Ward
I use Irfanview, and just updated RIOT to 0.4.6. Thanks for making the extended version of a fabulous program. It installed in Irfanview just fine.
I also downloaded the plug-in file. You said: “Even if RIOT is available as plug-in for other programs like IrfanView or GIMP, RIOT itself can be extended with plug-ins to enhance it’s functionality.
Download the RAW + HDR plugin package – allows you to open HDR, OpenEXR and RAW camera images.”
However, I can’t figure out how to get RIOT to recognize the plug in. I extracted the .zip file, and got 3 .fip files, but I don’t know what to do with them, and I can’t find anything in RIOT to tell me.
Thanks in advance for your assistance,
Harry
April 19, 2011 at 8:17 am
admin
Hello Harry
Thank you for your support. If you are using the RIOT IrfanView plugin you can copy all the 3 .fip files in the main IrfanView folder or in the plugins folder.
May 5, 2011 at 12:54 pm
Saul
Any JPEG2000 support in the future?
May 5, 2011 at 2:12 pm
admin
Currently there is only read support for JPEG 2000.
Write support will not be added until this format will be widely supported on web browsers.