This iMacros script will automatically subscribe you to multiple YouTube channels with a click of a button. Watch the video above to see how it works then try it yourself with the script below.
To use this script you’ll need to install iMacros for either Chrome or Firefox. Open iMacros and click Record then Stop immediately. This will create a Current.iim file. Right-click on this file to edit the macro. Replace everything in this file with the script below and save.
You’re all set to go. Now you can go to your YouTube account and run the macro to bulk subscribe. See the video above for more details. Let me know if you have any questions.
Script updated. Working as of March 2019
TAG POS=1 TYPE=yt-formatted-string ATTR=TXT:Subscribe<SP>*