Layout by Instagram - Combine multiple photos into a single image
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Likecreeper - Randomly hit like on a friend's horrifyingly old Instagram
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
Top Nine 2017 - Creates a collage of your top 9 Instagram posts for 2017
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats