Your iPhone takes stunning photos — but saves them as HEIC files that nothing can open. Here's how to fix that instantly.
The problem: You take a photo on your iPhone, try to share it with someone or upload it somewhere, and get an error — "file format not supported." This happens because Apple's iPhone saves photos in HEIC format by default since iOS 11. The fix takes about 10 seconds.
HEIC stands for High Efficiency Image Container. Apple adopted this format in 2017 with iOS 11 because it offers roughly 50% smaller file sizes than JPG at the same visual quality. A photo that would be 3MB as a JPG is typically 1.5MB as HEIC — which matters when you have thousands of photos eating your iCloud storage.
HEIC uses the HEIF (High Efficiency Image Format) container with HEVC (H.265) compression, the same technology used for high-efficiency video. The result is sharper, more detailed photos in smaller files. Great for Apple devices — terrible for compatibility with everything else.
Despite being technically superior, HEIC has one massive problem: it's not universally supported. Here's where HEIC fails:
The entire process takes under 10 seconds. Your file never leaves your device — all conversion happens locally in your browser. You can convert up to 50 HEIC files at once for batch conversion.
If you want your iPhone to save photos as JPG going forward, change this setting:
From now on, your iPhone will save new photos directly as JPG. Note: this slightly increases file sizes but eliminates compatibility problems.
If you own a Mac, AirDrop automatically converts HEIC to JPG when you share photos to non-Apple devices through Photos app → Share → AirDrop.
| Feature | HEIC | JPG |
|---|---|---|
| File size | ~50% smaller | Standard |
| Image quality | Better at same size | Good |
| iPhone compatibility | Native | Supported |
| Windows compatibility | Requires extension | Universal |
| Web uploads | Often rejected | Universal |
| Print services | Rarely accepted | Universal |
| Sharing via email | Problems common | Works everywhere |
Yes — slightly. HEIC-to-JPG conversion involves re-encoding the image with JPG compression, which is lossy. However, at quality settings of 85% or higher, the difference is invisible to the naked eye in most photos. PNGtoJPG uses high-quality conversion settings by default, so your converted photos will look excellent.
The practical answer: for sharing, printing, and uploading, converted JPGs look identical to the original HEIC. You won't be able to tell the difference on a phone screen, computer monitor, or print.
Yes. PNGtoJPG supports batch conversion of up to 50 files at once. Select all your HEIC photos, drop them into the converter, click "Convert All," then "Download All" to get a ZIP file with all your converted JPGs.
HEIC is technically superior for storage — smaller files, better quality. But JPG is better for longevity and accessibility. If you're archiving photos that you or others will need to access in 10-20 years, JPG's universal compatibility makes it the safer choice. For photos stored within Apple's ecosystem, HEIC is perfectly fine.
HEIC is a great format for your iPhone's internal storage, but a terrible format for sharing, uploading, or sending photos anywhere outside Apple's ecosystem. Converting HEIC to JPG is the fastest fix — and with PNGtoJPG, it's completely free and takes seconds.
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