Quick answer
To convert all iPhone HEIC photos to JPG: download from iCloud/Finder, then use Automator on Mac, PowerShell on Windows, or the HEIC to JPG Converter Chrome extension to batch convert hundreds at once.
You backed up 5 years of iPhone photos to your computer. Thousands of HEIC files. Trying to email someone 50 of them and your mail client rejects the whole batch. Here is how to convert your entire library to JPG in minutes.
Step 1: Export your HEIC files
Get the HEIC files on your computer first:
- From iCloud (Mac): System Settings > [Your Name] > iCloud > Photos > Download Originals. Files appear in Pictures/Photos Library.photoslibrary.
- From iCloud (Windows): Download iCloud for Windows, sign in, sync Photos folder. HEIC files land on C:/Users/[You]/Pictures.
- From iPhone (Mac/Windows): Connect iPhone, open Finder (Mac) or File Explorer (Windows), navigate iPhone Photos, select all, drag to desktop.
- From Google Photos: Download all photos as ZIP, extract, you get both HEIC and JPG depending on upload source.
Step 2: Batch convert on Mac (Automator)
Setup takes 5 minutes, then convert hundreds instantly:
- Open Automator, New Document, Quick Action.
- Set "Workflow receives" to image files in Finder.
- Search for "Change Type of Images", add it.
- Set format to JPEG, quality to 90%.
- Add "Move Finder Items", set destination.
- Save as "HEIC to JPG".
- Select all HEIC files in Finder, right-click > Quick Actions > HEIC to JPG.
Converts 1,000 files in 2-3 minutes on a modern Mac.
Step 3: Batch convert on Windows (PowerShell)
For advanced users, fastest method:
- Open PowerShell, navigate to your HEIC folder:
cd C:/Users/You/Pictures/iPhone - Install ImageMagick via
winget install ImageMagick - Run:
Get-ChildItem -Filter *.heic | ForEach-Object { magick convert $_.FullName ($_.BaseName + ".jpg") } - All HEIC files convert to JPG in the same folder.
Converts 1,000 files in under a minute. Fastest option overall.
Step 4: Verify and cleanup
- Check file count: original HEIC count should match new JPG count.
- Spot-check quality: open a few JPGs, confirm they look good.
- Keep originals for 1-2 weeks, then delete HEIC folder (or archive to external drive for backup).
- Upload JPGs to cloud backup (Google Drive, OneDrive, Dropbox).
At-a-glance comparison
| Method | Setup time | Batch speed (1,000 files) | Skill needed | OS |
|---|---|---|---|---|
| Automator (Mac) | 5 min one-time | 2-3 min | Beginner | Mac only |
| PowerShell + ImageMagick (Windows) | 2 min install | 1 min | Intermediate | Windows only |
| Chrome extension (any OS) | 30 sec | 5-10 min (manual) | Beginner | Any |
| Desktop app (XnConvert) | 2 min install | 3-5 min | Beginner | Mac/Windows |