SmallImage is described as 'simple and efficient tool to batch process JPEG files, resize them, recompress them, remove embedded profiles and make them ready for the web or store them efficiently' and is an app in the Photos & Graphics category. There are more than 25 alternatives to SmallImage for a variety of platforms, including Windows, Mac, Online / Web-based, Android and Windows S. The best alternative is ImageOptim. It's not free, so if you're looking for a free alternative, you could try RIOT - Radical Image Optimization Tool or Optimage. Other great apps like SmallImage are FastStone Photo Resizer (Free Personal), Image Tuner (Free Personal), Batch Image Resizer (Paid) and Image Shrink (Freemium).
ImageOptim is excellent for publishing images on the web (easily shrinks images “Saved for Web” in Photoshop). It's useful for making Mac and iPhone/iPad applications smaller (if you configure Xcode to allow better optimization).
Saving images for web/email/other media with the best compression ratio and quality is a difficult task if you don’t have the right tools. Choosing the right format then choosing the right parameters are the key factors of smaller files.
Convert and Rename images in batch mode Support JPEG, BMP, GIF, PNG, TIFF and JPEG2000 Resize, crop, change color depth, apply color effects, add text, watermark and border effects Rename images with sequential number Search and replace texts in the file names...
Resize, crop, shrink, flip, EXIF-autorotate, resample, convert, enhance, and process multiple pictures and photos with this professional software! 120+ Actions, 30+ Image Formats, 20 Scaling Modes, Conditional Processing based on Image Orientation.