iBrowser is free but powerful image and thumbnail viewer and browser allowing to preview folders with a large number of images. You can change look and feel of the program and save your interface layout. 14 language localizations and power features make iBrowser the best choice for every day use. All popular graphic formats are supported - jpeg/jpg/jpeg-2000/exif, tiff/tif, gif, pic, dxf, tga, pcx, icon and more.