The fastest way to convert HEIC to JPG on Mac

The simplest method is to use the Preview app that comes built into every Mac. Open the HEIC image in Preview, click File in the menu bar, select Export As, choose JPEG from the Format dropdown, name your file, and click Save. The whole process takes under a minute and requires no additional software.

If you have multiple photos to convert, the Finder's Quick Actions feature can batch-convert them without opening each file individually. Select all your HEIC files in Finder, right-click, choose Quick Actions, then Convert Image, and select JPEG as your format. Mac will create JPG versions and save them in the same folder.

Both methods preserve your original HEIC files — they don't delete or replace them. You end up with separate JPG copies alongside the originals.

Key Takeaways

  • Preview's Export As function converts a single HEIC to JPG in seconds without installing anything.
  • Finder's Quick Actions feature converts multiple HEIC files at once by right-clicking and selecting Convert Image.
  • Both methods create new JPG files and leave your original HEIC photos untouched.
  • You can adjust image quality and size during export if you want smaller file sizes or different dimensions.
  • Third-party apps like ImageMagick or Automator offer batch conversion if you convert photos regularly.

Using Preview to convert one photo at a time

Open Finder and locate the HEIC image you want to convert. Double-click it to open it in Preview (the default image viewer on Mac). Once the photo appears, click File in the top menu bar and select Export As from the dropdown.

A save dialog will open. At the bottom, you'll see a Format dropdown that currently shows HEIC. Click it and select JPEG. Give your file a name in the text field at the top — it will automatically add the .jpg extension. Choose where you want to save it (your Desktop, Documents folder, or any other location), then click Save.

Preview will convert and save the JPG when ready. You can now close Preview and use the new JPG file. The original HEIC remains in its original location unchanged.

Converting multiple photos with Finder's Quick Actions

Open Finder and navigate to the folder containing your HEIC photos. Select all the files you want to convert by clicking the first one, holding Shift, and clicking the last one. If the photos aren't grouped together, hold Command and click each file individually to select them.

With all files selected, right-click anywhere on one of the highlighted files. A context menu will appear. Look for Quick Actions and hover over it to see a submenu. Click Convert Image. A small window will pop up asking what format you want. Select JPEG and click Convert.

Finder will process all selected files and save the JPG versions in the same folder with the same filenames (but with .jpg extensions instead of .heic). This method is much faster than converting photos one at a time, especially if you have dozens to process.

Adjusting quality and size during conversion

When you export from Preview, you have options beyond just choosing the format. After you select JPEG and before you click Save, look for an Options button in the export dialog. Click it to reveal additional settings.

You can adjust the Quality slider — moving it left creates smaller file sizes but lower image quality, while moving it right keeps more detail but creates larger files. Most photos look good at 75 to 85 percent quality, which cuts file size significantly. You can also resize the image by changing the width and height if you want smaller dimensions (useful if you're uploading to websites with size limits).

These adjustments only affect the JPG you're creating. Your original HEIC file stays exactly as it was, so you can always re-export with different settings if you're not happy with the result.

Why your Mac creates HEIC files in the first place

Apple switched to HEIC (High Efficiency Image Container) format as the default for photos taken on iPhones and imported to Mac because the format compresses images more efficiently than JPG. A HEIC file is typically 30 to 40 percent smaller than a JPG of the same photo, which saves storage space on your device.

The problem is that HEIC isn't as widely supported as JPG. Older computers, some websites, email services, and many non-Apple devices can't open HEIC files. That's why converting to JPG is often necessary — not because JPG is better, but because it works everywhere. JPG has been the standard for decades, so nearly every device and software can read it.

When to use third-party apps for batch conversion

If you regularly convert large batches of photos — say, 50 or more at a time — third-party apps can automate the process further. ImageMagick is a free command-line tool that converts hundreds of files in seconds, though it requires typing commands in Terminal. Automator, which comes built into Mac, can create a workflow that converts photos automatically whenever you drag them into a specific folder.

For most people, Finder's Quick Actions is sufficient. But if you're a photographer managing thousands of images or you convert photos daily, exploring these tools might save you time. You can find tutorials for both on Apple's support site and through community forums.

Frequently Asked Questions

Will converting to JPG make my photo look worse?

Not noticeably, if you keep the quality setting at 80 percent or higher during export. JPG uses compression that removes some data, but the human eye usually can't see the difference at high quality settings. Lower quality settings (below 60 percent) will show visible degradation — blurriness or color banding — so avoid those unless file size is critical.

Can I convert HEIC to JPG on an older Mac?

Yes, as long as your Mac is running macOS 10.13 or later, Preview supports HEIC files. If you're on an older system, you can still use third-party apps like XnConvert or CloudConvert (online), though Preview is the easiest built-in option.

What happens to the original HEIC file after I convert it?

Nothing. The original HEIC file stays exactly where it was. Converting creates a new JPG file — it doesn't delete or replace the HEIC. If you want to remove the HEIC files after confirming the JPG versions look good, you can manually delete them from Finder.

Can I batch convert HEIC files from my iPhone photos on Mac?

Yes. When you import photos from your iPhone to Mac using the Photos app or by connecting via USB, they often arrive as HEIC files. You can select them in Finder and use Quick Actions to convert them all at once, or export them from the Photos app directly as JPG by right-clicking and choosing Export.

Is JPG smaller than HEIC?

No — HEIC files are typically smaller than JPG at the same quality level. But JPG is more compatible. You're trading file size for universal compatibility when you convert. If storage space is your only concern, keeping HEIC is the better choice.