RawViewer is a RAW image data viewer for imaging professionals that also features some converting and renaming functions.

RawViewer can view RAW image data files including bgr, rgb, bgra, rgba, abgr, argb, nv21, nv12, i420, yv12, i422h, i422v, i444, yuyv, yvyu, and gray.

It can also convert between RAW image file formats and either BMP orJPEG file formats.

RawViewer can also rename RAW files as well as view pixel color value in RGB or YCbCr. You can zoom in or out with a scroll of your mouse well as well as know the size of the image you're working with.

RawViewer is portable, well under 1MB and a pretty amazing little utility for anyone working with RAW files.