Batch PSD to JPG is a free program for Windows that allows you to convert one or more PSD format files into JPG format files with the same output image.
The way it works is simple. All you have to do is add to the conversion queue the file or folder where the PSD files you're going to convert are located. Once you do this, all you have to do is select the destination and image quality of the converted files.
All this makes Batch PSD to JPG a great application that will come in handy for when you don't have access to Adobe Photoshop.