How to Convert HEIC to JPG on Windows, Android and Mac

You took great photos on an iPhone, copied them to your computer or sent them to a friend, and now nobody can open them. Maybe you’re on a Windows laptop, an Android phone, or an older app that only shows a blank icon. The file ends in .heic, and the program you’re using doesn’t know what to do with it.

This guide is for anyone who needs those photos in a format that works everywhere. It explains what HEIC is and why it causes trouble, compares the main ways to convert it, and walks you through each method. It also covers converting many photos at once and keeping file sizes sensible.

What is HEIC, and why won’t it open?

HEIC (High Efficiency Image Container) is a photo format based on HEIF, a newer standard for storing images. iPhones and iPads save photos as HEIC by default because it keeps good image quality at a noticeably smaller file size than JPG. That saves storage space on your phone.

The problem is support. JPG has been around for decades and nearly every device, website and app can read it. HEIC is newer and uses a more complex compression method, so support varies:

• Windows may need extra extensions from the Microsoft Store before the Photos app can show HEIC files.
• Android support depends on the phone and the gallery app. Some open HEIC fine, others don’t.
• Mac handles HEIC natively in apps like Preview and Photos, but the people or websites you send files to may not.
• Websites and online forms often accept only JPG or PNG, so an upload can fail even if your own computer shows the photo.

Converting to JPG is the simplest way to make a photo work everywhere.

Ways to convert HEIC to JPG compared

There’s no single “right” method. The best one depends on your device and whether you want to fix photos you already have or stop getting HEIC files in the future.

Method	Works on	Converts existing files?	Batch conversion	Notes
Deftivo in the browser	Windows, Mac, Android, Linux	Yes	Yes, with ZIP download	Nothing to install; files stay on your device
Windows HEIF/HEVC extensions	Windows	Lets you view them; saving as JPG is one file at a time	Limited	Installed from the Microsoft Store; check the listing for any cost
Preview on Mac	Mac	Yes	Yes, by exporting several selected images	Built into macOS
Sharing from iPhone	iPhone to anywhere	Often converted automatically	Depends on the app	Results vary by app and sharing method
iPhone Camera “Most Compatible”	iPhone	No, future photos only	Not applicable	Photos are saved as JPG from then on, at a larger size

Many online converters upload your photos to a server to process them. That can work fine, but personal photos often include faces, homes and location data, so it’s worth knowing where your files go.

How to convert HEIC to JPG with Deftivo

The Deftivo HEIC to JPG converter runs entirely in your web browser. Your photos are processed on your own device and are never uploaded, so it works the same on a Windows PC, a Mac, a Chromebook or an Android phone.

1. Select or drop one or more .heic or .heif photos.
2. Choose JPG (smaller) or PNG (lossless).
3. Press Convert.
4. Download each photo, or all of them as a ZIP.

JPG or PNG? Choose JPG for everyday use: sharing, email, social media and uploading to forms. PNG is “lossless”, meaning no extra detail is lost when saving, but the files are much larger. PNG makes sense if you plan to edit the image further and want to avoid repeated quality loss.

Other methods, device by device

Windows

Windows can display HEIC photos once the HEIF Image Extensions (and, for some files, the HEVC Video Extensions) are installed from the Microsoft Store. After that, you can open a photo in the Photos app or Paint and use Save as to create a JPG copy. This works for a few photos, but it becomes slow when you have dozens.

Mac

Open the photo in Preview, choose File → Export, and pick JPEG as the format. To convert several at once, select them all in Preview’s sidebar before exporting. In the Photos app, you can also drag photos out to a folder or use File → Export with JPEG selected.

Android

If your gallery app shows the photo, you may be able to share or save it as JPG from there, depending on the app. If it won’t open at all, a browser-based converter is the easiest route, since it doesn’t require installing anything.

Sharing from an iPhone

When you send photos from an iPhone by email, messaging apps or AirDrop to a non-Apple device, iOS often converts them to JPG automatically. The behavior depends on the app, though, so it isn’t fully reliable. There’s also a setting under Settings → Photos → Transfer to Mac or PC: choosing Automatic tells the iPhone to convert photos to a compatible format when copying them over a cable.

Stop getting HEIC files: “Most Compatible”

If you’d rather never deal with HEIC again, go to Settings → Camera → Formats on your iPhone and select Most Compatible. New photos will be saved as JPG. Keep in mind that this only affects future photos, and JPG files take up more storage space.

Batch conversion: handling many photos at once

If you’ve exported a whole album, converting one file at a time is tedious. With Deftivo, select all your HEIC photos in step 1, convert them together, and use the ZIP download to get everything in a single file. Unzip it and you’ll have a folder of ready-to-use JPGs.

A few tips for large batches:

• Work in groups of manageable size if your device is older or low on memory, since everything is processed locally.
• Keep the original HEIC files until you’ve checked the converted ones.
• Put the converted files in a separate folder so you don’t mix them up with the originals.

Tips and pitfalls for quality and file size

• Expect larger files. A JPG is usually bigger than the HEIC it came from, because HEIC compresses more efficiently. That’s normal.
• Shrink files for email or forms. If a website has an upload size limit, run your JPGs through the Deftivo image compressor. Set the quality and, if you like, a maximum width, then compare the sizes before downloading. Reducing the width to something like the size of a typical screen often cuts file size a lot with little visible difference.
• Don’t convert repeatedly. Each time a JPG is saved again, a bit of detail is lost. Convert once from the original HEIC rather than re-saving copies of copies.
• Need another format later? If a site wants PNG or WebP instead, the JPG and PNG converter can switch between JPG, PNG, WebP, GIF and BMP.
• Check photo orientation and colors. After converting, take a quick look at a few images to make sure they look right before deleting anything.
• Live Photos and edits. A Live Photo’s motion part isn’t kept in a still JPG, and edits made on the iPhone may or may not carry over depending on how the file was exported.

FAQ

Does converting HEIC to JPG reduce quality?

JPG uses lossy compression, so a tiny amount of detail is technically lost. At normal quality settings the difference is very hard to see. If you need a copy with no extra loss, choose PNG instead, though the file will be larger.

Are my photos uploaded when I use Deftivo?

No. The conversion happens inside your browser on your own device, and the photos are never sent to a server. That makes it a good choice for personal or sensitive images.

Why is my JPG bigger than the original HEIC?

HEIC is designed to store images more efficiently than JPG, so the same photo usually takes more space as a JPG. If size matters, compress the JPG afterward or reduce its maximum width.

Can I convert HEIC photos on my Android phone?

Yes. Open the Deftivo HEIC converter in your phone’s browser, select your photos, convert them and download the results. There’s no app to install, and it works whether or not your gallery app can open HEIC.