A step-by-step guide to batch converting RAW camera files (CR2, NEF, etc.) to JPG or PNG using IrfanView’s built-in batch conversion feature on Windows.

Download

Visit http://www.irfanview.com/

Download latest version (Version 4.35 for me),

Installation

Just .. until the end..

Mass Convertion

Start IrfanView, it’s should look like this:

Press ‘B’ on your keyboard or Goto File > Batch Conversion/Rename

and this is what you should see:

Now:

1. Make sure you are at Batch Convertion mode.
2. Add your files. If the irfan browser doesn’t see your files (like in this example), just drag them from your explorer to the input files box.
3. Set the Output Directory and Output format to: JPG (or whatever you desire).

Note: you can use the advanced options for further bulk options like resize, crop, etc.

…

Press now the ‘Start Batch’ button, and your files are bulk converted!

Conclusion

Using IrafnView you can Bulk (Mass) Convert your RAW files to any other file type (JPG/PNG/TIF/etc)

You can do a lot more using this amazing cool software! Recommended!