You sent a photo from your iPhone and the other person couldn't open it — or you uploaded one to a website and it bounced the file. The culprit is HEIC, Apple's modern photo format. It saves space beautifully but isn't supported everywhere. Converting your HEIC photos to JPG fixes that instantly: JPG opens on practically any device, app, and website.
What is HEIC, and why won't it open?
HEIC is the file format iPhones have used by default since iOS 11. It's based on the HEIF standard and squeezes high-quality photos into roughly half the size of an equivalent JPG. That's great for your phone's storage. The trouble starts the moment a photo leaves Apple's ecosystem: plenty of Windows apps, older software, web upload forms, and non-Apple devices still don't read HEIC, so they show an error or nothing at all.
JPG, by contrast, has been the universal photo format for decades. Converting HEIC to JPG trades a little file size for the certainty that the image opens anywhere. Drop your files into HEIC to JPG and download standard JPGs in seconds — no app to install.
How to convert HEIC to JPG, step by step
- Open the HEIC to JPG tool.
- Upload your HEIC photos. You can usually do several at once.
- Convert. Each HEIC becomes a standard JPG.
- Download the JPG files, or a zip if you converted a batch.
- Open one to confirm it looks right, then share or upload anywhere.
The image quality stays close to the original; JPG simply packages it in a format every device understands.
Avoid the HEIC problem at the source
If you'd rather not convert after the fact, you can tell your iPhone to shoot in a more compatible format. Go to Settings → Camera → Formats and choose Most Compatible instead of High Efficiency. New photos are then captured as JPG. It's a useful switch if you constantly share photos with Windows users or upload to picky web forms — though you give up some of HEIC's storage savings. For the photos already on your phone, conversion is still the fastest fix.
When you have other formats to wrangle, too
HEIC isn't the only format that causes friction. If you're tidying up a mixed photo library, a couple of neighboring tools help:
- Got PNG screenshots that are too large or won't upload? PNG to JPG shrinks them into compact, broadly compatible JPGs.
- Need lossless or transparency instead? JPG to PNG goes the other direction.
JPG is the safe default for sharing and uploading; PNG is better when you need crisp lines or a transparent background.
Converting photos of documents? Read the text, too
A lot of HEIC photos are actually pictures of paperwork — a receipt, a page, a whiteboard. Once you've converted those to JPG so they open everywhere, you can do more than view them.
If the photo contains text you need, pull it out with image to text; our walkthrough on extracting text from a photo covers the whole flow. And if you want to gather several converted photos into one shareable document, see combining images into a single PDF — a JPG version of each page combines far more reliably than HEIC. Need an editable document at the end of it all? Converting a PDF to Word turns the result into text you can edit.
Frequently asked questions
Will converting HEIC to JPG lower the quality?
The visible quality stays very close to the original. HEIC and JPG both use compression, so converting won't restore detail, but for normal viewing, printing, and sharing you won't notice a difference. The JPG file is typically a bit larger than the HEIC, which is the trade for universal compatibility.
Why does my iPhone save photos as HEIC in the first place?
To save storage. HEIC packs the same image quality into roughly half the space of a JPG. The downside is compatibility, which is why converting to JPG — or switching your camera to Most Compatible mode — makes the photos open everywhere.
Can I convert several HEIC photos at once?
Yes. Upload multiple files to HEIC to JPG and convert them together, then download the results. That's the quickest way to clear a whole album of HEIC shots before sharing or uploading them.
How do I stop my phone from making HEIC files going forward?
In Settings, open Camera → Formats and choose Most Compatible. Your iPhone will then capture new photos as JPG. Existing HEIC photos stay as they are, so convert those with HEIC to JPG when you need them.
Have a HEIC photo that won't open where you need it? Convert it to a universal JPG with HEIC to JPG and share it anywhere.