Convert HEIC Photos to JPG on Windows (ImageMagick)
Batch-convert iPhone HEIC images to universally readable JPG files.
Install ImageMagick, open the photo folder in a terminal and run magick mogrify -format jpg *.heic.
01Command
Command
$ magick mogrify -format jpg *.heic02What it does
iPhones save photos as HEIC, which many Windows apps and websites still can't open. ImageMagick decodes HEIC and re-saves each file as JPG without touching the original. For a single photo use magick photo.heic photo.jpg; the mogrify form above converts every HEIC in the folder in one go.
03Risk
!Warning: JPG loses some quality versus HEIC and discards HDR look on newer iPhones — keep the originals until you've checked the results.
04Undo
✓No undo needed — this command does not change persistent state.
05Sources
- Command-line Tools: MagickEvidence: Documents the magick/mogrify command-line tools for converting between image formats including HEIC.
Last verified: 2026-09-18 · Category: Media