HEIC vs JPG: Why Your iPhone Photos Won't Open and How to Fix It
What the HEIC format is, why Windows and many websites reject it, and the three best ways to get JPG photos from your iPhone, including a setting most people miss.
You copy photos from your iPhone to a Windows laptop, double-click one, and nothing happens. Or a job portal rejects your scanned document with “unsupported file type”. The culprit is almost always the same: the file ends in .heic.
What is HEIC?
HEIC stands for High Efficiency Image Container. It is Apple’s use of the HEIF standard, and since iOS 11 (2017) it has been the default format for photos taken with the iPhone camera. The image inside is compressed with HEVC, the same technology used in 4K video.
The benefit is real: a HEIC photo is typically about half the size of a JPG of the same visual quality. On a 128 GB phone full of photos, that is a lot of saved space. HEIC also supports 16-bit color, transparency, and storing several images in one file, which is how Live Photos and burst shots work.
Why does HEIC cause so many problems?
Because support outside Apple’s world is patchy:
- Windows needs extra codecs from the Microsoft Store to display HEIC, and on some editions those codecs are paid.
- Many websites and online forms accept only JPG and PNG. Government portals, job sites and print shops are the usual offenders.
- Older photo editors and office programs cannot open HEIC at all.
- Android can display HEIC on most recent phones, but many apps still cannot upload it.
JPG, by contrast, has been readable by every device and program for over 30 years. That is why it remains the safe choice for sharing.
Fix 1: Let the iPhone convert automatically
iOS often converts HEIC to JPG on its own when you share. Sending a photo by email, AirDrop to a non-Apple app, or uploading through Safari usually produces a JPG. If you transfer photos to a PC by cable, go to Settings, Photos, and under “Transfer to Mac or PC” choose Automatic. The phone then converts photos to JPG while copying.
The catch: this does not help with photos already in iCloud Drive, in a cloud backup, or sent through some messenger apps, which often keep the original HEIC.
Fix 2: Change the camera format
To stop creating HEIC files at all, open Settings, Camera, Formats, and choose Most Compatible. New photos are saved as JPG. Old photos stay as they are.
We do not recommend this for everyone. Your photo library will grow roughly twice as fast, and if you only occasionally need a JPG, converting on demand is smarter.
Fix 3: Convert existing HEIC files
For photos you already have, use HEIC to JPG. Select one or a hundred photos, choose JPG or PNG and download them as a ZIP. Conversion happens in your browser, which matters here: personal photos are exactly the kind of file you should not upload to a random website.
A side benefit: converting removes EXIF metadata such as the GPS location where the photo was taken. If you are posting a photo of something you are selling, that is a privacy plus.
HEIC vs JPG at a glance
- File size: HEIC is about 40 to 50 percent smaller at similar quality.
- Compatibility: JPG works everywhere; HEIC works well only in the Apple ecosystem.
- Color depth: HEIC supports up to 16 bits per channel; JPG is limited to 8.
- Editing: both are lossy; every save re-compresses, so keep originals.
- Transparency and multiple images: HEIC yes, JPG no.
What about AVIF and WebP?
AVIF is a newer, open format with similar compression to HEIC and much better support in browsers. WebP is widely used on websites. Neither is a great choice for sending photos to people yet, for the same reason as HEIC: not every app opens them. For sharing with others, JPG remains the safest default.
Our take
Keep shooting in HEIC. It is a genuinely better format and saves a lot of storage. Set “Transfer to Mac or PC” to Automatic, and convert to JPG only when a person or a website needs it. If you have to submit photos of documents, convert them, then combine them into one file with JPG to PDF: most forms prefer a single PDF over a pile of images anyway.