Photo Batch is described as 'will help you process all your images at once. No more repetitive work, simply drag the images or the folders you wish to process into Photo Batch, then apply the desired effects, crop, rotate, resize and rename them all and finally export them' and is an app in the Photos & Graphics category. There are more than 50 alternatives to Photo Batch for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and Android. The best alternative is XnView MP. It's not free, so if you're looking for a free alternative, you could try ImageMagick or Caesium Image Compressor. Other great apps like Photo Batch are XnView (Free Personal), ImageOptim (Free Personal, Open Source), Preview (Free) and XnConvert (Free Personal).
ImageMagick is a software suite to create, edit, and compose bitmap images. It can read, convert and write images in a variety of formats (about 100) including GIF, JPEG, JPEG-2000, PNG, PDF, PhotoCD, TIFF, and DPX.
Caesium Image Compressor lets you compress your pictures up to 90% without visible quality loss. Providing a simple yet effective interface with a real-time preview and multiple image processing at the same time, everyone will be able to reach the best result.
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).
XnConvert is an easy image converter for graphic files, photos and images available on Windows, MacOSX and Linux. It supports more than 400 file formats (jpeg, tiff, png, gif, camera raw, jpeg2000, WebP, OpenEXR, ...).
Imagine is an Image & Animation Viewer for Windows with screen capture function. Features - View and save image/animation files with very fast speed - Support for numerous image/animation file formats: GIF, BMP, PNG, JPG, TIF, TGA, PCX, ICO, ANI, FLI, and many more...
QuickViewer is a graphic image viewer for comfortable browsing of many images. This software performs reading of image data in advance. And drawing the imported image data on the screen with OpenGL. You can browse images with much smoother response than ever before.