How to Fix HEIC Not Supported Errors
The "HEIC not supported" error appears when you try to open, upload, or use an iPhone photo on a device or platform that does not recognize the HEIC format. This is one of the most common image format problems people encounter, affecting hundreds of millions of iPhone users who try to share photos with non-Apple devices and services.
HEIC (High Efficiency Image Container) is Apple's default photo format on iPhones since 2017. It produces higher quality photos at smaller file sizes than JPEG, but it is not universally supported. Windows, Android, most web browsers (except Safari), many websites, and older software cannot handle HEIC files natively.
This guide explains exactly why the error happens and provides the quickest fixes for every common scenario.
Step-by-Step Instructions
- Identify Where the Error Occurs
The fix depends on where you encounter the error. On Windows, the error appears when trying to open HEIC files in Photos or File Explorer. In web browsers, HEIC images display as broken images or download prompts. On websites, upload forms reject HEIC files with format not supported errors. In software like older versions of Photoshop, GIMP, or Microsoft Office, HEIC files fail to open.
- Quick Fix: Convert to JPG
The fastest universal fix is converting the HEIC file to JPG. This works for every scenario since JPG is universally supported. Use a browser-based converter like imageconvert.co to convert HEIC to JPG in seconds with no software installation. The converted JPG file works everywhere: Windows, Android, web uploads, email, every application.
- Windows Fix: Install HEIF Extensions
To view HEIC files natively on Windows without converting, install the HEIF Image Extensions from the Microsoft Store (free) and the HEVC Video Extensions ($0.99 or free through device manufacturer). After installation, Windows Photos, File Explorer thumbnails, and most Windows applications can open HEIC files directly. This is a one-time setup.
- iPhone Fix: Change Camera Format to JPEG
To prevent future HEIC issues at the source, change your iPhone camera to save as JPEG: go to Settings > Camera > Formats and select Most Compatible. Photos will save as JPEG going forward. The trade-off is roughly double the file size per photo, meaning less storage space on your phone. Existing HEIC photos are not affected.
- iPhone Fix: Enable Automatic Transfer Conversion
You can keep shooting in HEIC (for storage efficiency) and have your iPhone automatically convert to JPEG when transferring photos. Go to Settings > Photos and set Transfer to Mac or PC to Automatic. When you connect your iPhone to a Windows PC or share via certain methods, the photos are automatically converted to JPEG during transfer.
Why HEIC Is Not Supported Everywhere
HEIC is based on the HEVC (H.265) video codec, which is patent-encumbered. Companies that want to support HEIC in their software need to pay licensing fees to the HEVC patent holders. This licensing cost is why browser makers (Google, Mozilla), operating system vendors (initially Microsoft), and many software developers have been slow to add HEIC support.
Apple pays the HEVC licensing fees for its products, which is why HEIC works seamlessly within the Apple ecosystem (iPhone, Mac, iPad, Safari). Outside Apple's ecosystem, support depends on whether each vendor has chosen to pay for HEVC licensing. Google Chrome, Firefox, and Edge do not support HEIC because Google and Mozilla prefer royalty-free formats like WebP and AVIF.
HEIC Support Status in 2026
The HEIC compatibility landscape has improved since 2017 but is still far from universal. Windows 10 and 11 can view HEIC after installing the free HEIF extensions plus the HEVC extension. MacOS supports HEIC natively. Android has partial HEIC support (varies by manufacturer and Android version). Web browsers remain the biggest gap: only Safari supports HEIC natively.
For web uploads, virtually no website accepts HEIC directly. Social media platforms (Facebook, Instagram, Twitter) convert uploaded HEIC files on their servers, but form-based upload fields typically reject HEIC outright. Email clients vary: Apple Mail handles HEIC, Outlook shows it as an attachment that may not preview, and Gmail shows a download link.
- Windows: Supported after installing extensions (free + $0.99)
- MacOS: Fully supported natively
- Android: Partial support (varies by device)
- Chrome/Firefox/Edge: Not supported (only Safari supports HEIC)
- Web uploads: Almost universally rejected
- Social media: Accepted but auto-converted on upload
- Email: Varies by client (Apple Mail yes, others limited)
Convert HEIC to JPG Instantly
The fastest fix for any HEIC compatibility issue is converting to JPG. imageconvert.co converts HEIC to JPG entirely in your browser using WebAssembly. Your photos never leave your device. No software to install, no account needed. Drop your HEIC files, download JPGs. Works on any device with a modern browser.
Frequently Asked Questions
Why can't Windows open HEIC files?
Windows does not include HEIC support by default because HEIC uses the HEVC codec, which requires patent licensing. Install the free HEIF Image Extensions and the HEVC Video Extensions from the Microsoft Store to add HEIC support to Windows. After installation, Windows can open, preview, and display HEIC files natively.
Why do websites reject my HEIC photos?
Most websites only accept JPG, PNG, and sometimes WebP for image uploads. HEIC is not supported by web browsers (except Safari), so websites cannot process or display HEIC files. Convert your HEIC photos to JPG before uploading to any website.
Does converting HEIC to JPG lose quality?
There is a very small quality reduction because HEIC and JPG use different compression methods. At JPG quality 90, the converted file is virtually indistinguishable from the HEIC original. The JPG file will be larger than the HEIC original (roughly 2x) because JPG compression is less efficient, but the visual quality is essentially identical.
Can I make my iPhone stop saving in HEIC?
Yes. Go to Settings > Camera > Formats and select Most Compatible. This switches the camera to save photos as JPEG and videos as H.264 MOV. The downside is that photos take roughly twice as much storage space. You can also keep HEIC and enable automatic conversion during transfer: Settings > Photos > Transfer to Mac or PC > Automatic.
Why does Apple use HEIC if it causes so many problems?
HEIC produces 50% smaller files than JPEG at the same quality. On a phone with limited storage, this effectively doubles your photo capacity. HEIC also supports features JPEG cannot: Live Photos, depth maps, HDR, and multiple images in one file. Within the Apple ecosystem, HEIC works seamlessly. The compatibility issues only arise when sharing outside Apple.