Is there an easy way to convert heic to jpg in bulk?

Hey there, I’m finding this thread a bit late, but maybe this will help others out there. I built a tool for Windows that you can get on the Microsoft Store called “Unlimited HEIC Converter” which will do exactly what you’re wanting (batch processing of HEIC files). It is 100% free, no sign-up, no ads, completely offline, keeps all exif and metadata, etc. Feel free to download it and if you’re happy with it I always appreciate reviews on the MS Store or telling your friends about it! Full disclosure, I have a pop-up window at the end of processing asking if you’d like to donate to me to support my work. YOU DO NOT need to donate unless you feel like it. Just use the app as many times as you want with as many files as you want since it is unrestricted in every way.

I hope this helps the OP and any others needing something like this!