Raw to JPG Converter is a free and useful tool for converting raw photos to JPG. It allows you to decode raw photos in real size as jpg.

Some of the supported formats are:
.CRW .CR2 .NEF .DNG .ERF .KDC .RAF .RAW .MOS .MRW .MEF .MDC .ORF .RW2 .PEF .ARW .SRW .SRF .3FR .TIFF .DCR

* Thumbnail extraction.
* Convert multiple files.
* Allows you to change the output quality.
* It's completely unlimited. No restrictions on file size or number of photos to convert.
* Works without an internet connection.