RawViewer

RawViewer: View and convert between a great variety of RAW and regular picture formats

RawViewer is a great piece of software that lets you view and converts a wide variety of RAW files. While RAW files were a "professional" format not so long ago, since users can buy professional grade cameras now, RAW become a more popular format for enthusiasts. Using RAW files lets you modify most aspects of an image, from its ISO and exposure, aperture and many other settings and filters.

RawViewer doesn't require an installation and can be copied and run from any external devices. The application also supports the most popular RAW image formats, from NV12 and I420 to YUYV, and YVYU with regular formats such as JPG or PNG being also supported.

While there isn't much else to be said in terms of features, RawViewer is a powerful RAW image viewer and converter and most importantly, it's free.