I have iPhone 11 Pro and MacBook Pro 16", both are powerful enough to handle HEIC/HEVC. I just found that significant part of my iCloud Photo Library has an unoptimized MOV files recorded on previous iPhones:

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Is there any way to convert library to modern format keeping all the metadata?

  • Are you looking for iPhone-based solutions or does your library get synced to a computer as well?
    – nohillside
    May 7, 2020 at 14:06
  • @nohillside I am looking for ANY solution that would work :) I am syncing both Mac and iOS.
    – k06a
    May 7, 2020 at 14:54

1 Answer 1


For images, you could use this iOS app to batch converting anything to HEIF:

I personally use this app for my own Photo Library!

Half - Cut Media Storage in ½ https://apps.apple.com/app/half-cut-media-storage-in/id1288721004

For videos, I haven't test anything solid yet. However, I found a blog post https://rienkjanschurer.nl/how-to-make-your-apple-photos-library-smaller-use-h265-hevc-for-your-videos/

and it uses Permute, which looks promising! https://software.charliemonroe.net/permute/

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