Instagram Automatic Posting by Iconosquare - Schedule now. We'll post on Instagram for you later!
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
Grum - Post on Instagram from your computer!
Ralpha Image Resizer - High-speed image batch conversion tool
Instaplus - Instaplus is an Instagram automation solution that utomatically likes, comments, follows, and unfollows the target audience.
Caesium Image Compressor - Compress your pictures up to 90% without visible quality loss.