Use Python to automate unfollowing multiple people from Instagram at a time. This is one of the only valid and unpaid ways to automate Instagram unfollowing.
Depends on the InstagramAPI module, which you can find out about here.
To install InstagramAPI module via pip:
pip install InstagramAPI
Simply run batch_unfollow.py in terminal or Command Prompt. There are optional arguments which can be used:
-u changes how many users you would like to unfollow at one time
-t changes the maximum interval delay in seconds for unfollowing users. The timed delay will be randomized within the interval.
Example use:
python batch_unfollow.py 'your_username' 'your_password' -u 50 -t 10