The fastest way to convert HEIC to JPG on Mac

The quickest method is to use the Preview app that comes built into every Mac. Open the HEIC photo in Preview, click File in the menu bar, select Export As, choose JPEG from the format dropdown, and save. This takes about 30 seconds and requires no additional software.

If you have multiple photos to convert, the Finder batch method is faster. Select all your HEIC files in Finder, right-click, choose Quick Actions, then Convert Image, and select JPEG as the format. macOS will convert them all at once and save them in the same folder with a new filename.

Both methods preserve the photo quality and work on any Mac running macOS 10.15 or later. The Preview method gives you control over compression and file size; the Finder method is hands-off once you start it.

Key Takeaways

  • Preview (built into every Mac) converts a single HEIC photo to JPG in under a minute using File > Export As.
  • Finder's Quick Actions feature converts multiple HEIC files to JPG at once without opening each one separately.
  • Both methods let you choose the JPG quality level, which affects file size but not the original HEIC file.
  • No third-party software is needed; macOS has had native HEIC support since 2017.

Converting one photo at a time in Preview

Open Finder and locate the HEIC photo you want to convert. Double-click it — it will open in Preview by default. Once the photo is open, click File in the menu bar at the top of the screen.

From the File menu, select Export As (not "Save As" — that option saves in Preview's native format). A dialog box will appear. In the dropdown menu labeled Format, click it and select JPEG. Choose where you want to save the file, give it a name if you want to change it, and click Save.

A second dialog may appear asking about compression quality. The default setting (high quality) is fine for most uses. If the file size matters — for example, if you're uploading to a website with size limits — you can move the slider toward "low" to reduce file size, though this will make the photo slightly less sharp. Click Save again to finish.

Converting multiple photos at once in Finder

Open Finder and navigate to the folder containing your HEIC photos. Click on the first HEIC file, then hold Command and click each additional HEIC file you want to convert. All selected files will highlight in blue.

Right-click (or Control-click) on any of the selected files. A menu will appear. Look for Quick Actions and hover over it — a submenu will expand. Click Convert Image. A small window will pop up asking what format you want. Click the dropdown and select JPEG.

Choose where you want the converted files saved (the default is the same folder as the originals) and click Convert. macOS will convert all the selected files and save them with "_JPEG" added to the filename so you can tell them apart from the originals. This usually takes a few seconds regardless of how many photos you're converting.

Adjusting quality and file size during conversion

When you export from Preview, you control how much the JPG is compressed. Higher quality means larger file size; lower quality means smaller file size but slightly less detail in the photo. For most everyday uses — sharing on social media, storing in cloud services, or printing — the default "high" quality setting is appropriate.

If you need a smaller file, the compression slider in the export dialog lets you reduce quality. Move it toward the left to shrink the file. You can see the estimated file size change as you adjust it. If you're converting many photos and want consistent compression across all of them, use the Finder batch method, which applies the same settings to every file.

Why your Mac stores photos as HEIC in the first place

HEIC is Apple's newer photo format, introduced in 2017. It stores photos in smaller files than JPG while keeping the same visual quality — roughly 50 percent smaller for the same image. Apple uses it by default on iPhones and newer Macs because it saves storage space and uploads faster.

JPG is older and more widely supported by older devices, websites, and software. Some printers, email clients, and older computers may not recognize HEIC files. Converting to JPG makes sense when you need to share photos with people using older devices or when a website or service doesn't accept HEIC uploads.

When to use each conversion method

Use Preview for single photos or when you want to adjust quality settings individually. It's also the right choice if you want to crop, rotate, or make other edits before converting — Preview lets you do that in the same window.

Use Finder's Quick Actions for batches of 5 or more photos, especially if they're all the same subject or event and need the same quality level. It's faster because you don't open each photo separately. If you're converting photos from a recent iPhone backup or a folder of screenshots, the Finder method saves time.

If you regularly convert large numbers of photos (hundreds per week), third-party apps like ImageMagick or Automator workflows can automate the process further, but for occasional conversion, the built-in tools are sufficient.

Frequently Asked Questions

Will converting HEIC to JPG make the photo look worse?

No, not noticeably. JPG uses a different compression method than HEIC, but at the default quality setting in Preview, the difference is invisible to the human eye. The file will be larger than the original HEIC, but the visual quality stays the same. Only if you deliberately lower the quality slider will you see a reduction in sharpness.

Can I convert HEIC to JPG on an older Mac?

Macs running macOS 10.15 (Catalina) or later have built-in HEIC support. If you have an older Mac, you'll need third-party software. You can also upload the HEIC file to a free online converter, though this means sending the photo to an external server.

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

The original HEIC file stays exactly where it is and is not changed. Conversion creates a new JPG file. You can delete the HEIC afterward if you want to save storage space, but the conversion process itself doesn't touch the original.

Can I batch convert HEIC files that are in different folders?

Not with the Finder Quick Actions method — it only works on files in the same folder. If your HEIC photos are scattered across multiple folders, you can either move them to one folder first, or convert them one folder at a time using the Finder method.