www.batch-photo-editor.com
The best tool to undertake the task at hand is the simpliest one that handles it
Easy-Photo-Editor:
This freeware program helps one into easily batch converting images (*.bmp,*.jfif,*.jif,*.jpe,*.jpg,*.jpeg,*.png,*.tif, and *.tiff).
Compatibility:
Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, and Windows 10