What is a HEIC file?
HEIC (High-Efficiency Image Container) is the file format Apple has used by default for iPhone and iPad photos since iOS 11 in 2017. The container itself follows the broader HEIF (High-Efficiency Image Format) specification developed by the MPEG group; HEIC is just Apple's specific extension for HEIF files compressed with the HEVC (H.265) video codec. Each .heic file can hold a single still photo, a burst, a Live Photo (still + short video), depth data, alpha channels, image edits, and color profile data — all in one tightly-packed bundle.
Why does the iPhone use HEIC instead of JPG?
Storage. A typical 12-megapixel iPhone photo saved as JPG weighs 2–4 MB; the same image saved as HEIC weighs roughly 1–2 MB at the same perceptual quality. That ~50% saving multiplies across thousands of photos in your library and iCloud account, and HEIC also encodes more dynamic range, better color reproduction, and Live Photo metadata that legacy JPG can't represent at all. Apple chose HEIC because it is meaningfully better technology — every iPhone still saves a JPG fallback when you share to apps that don't support HEIC, but the original on your device is the smaller, richer HEIC.
Where does HEIC fall short?
Compatibility. Outside the Apple ecosystem, HEIC support is uneven. Windows 10 and 11 require the free HEIF Image Extensions from the Microsoft Store before Photos and File Explorer can render .heic files. Most Android system galleries can't open HEIC at all. Photoshop only added HEIC support in 2021; older versions and many smaller editing apps still cannot. Online photo printers, PDF tools, web upload forms, and email previews routinely refuse HEIC files with a generic "unsupported format" error. The result is the familiar workflow problem: you AirDrop or share a photo and the recipient sees a broken icon.
How to open HEIC files anywhere
The reliable solution is to convert HEIC to a universal format. JPG works literally everywhere; PNG preserves perfect detail and transparency; WebP is ideal if the destination is the web. Converter.Plus handles all three conversions entirely in your browser — drop your .heic files, choose JPG, PNG, or WebP, and download the converted images without uploading anything. The conversion uses the HEIF decoder built into modern browsers (or a WebAssembly fallback), so iPhone photos travel zero distance to be made universally openable.
Should you turn off HEIC on your iPhone?
Probably not. The storage savings are substantial and HEIC keeps richer photo data than JPG can carry. A better workflow is to leave "High Efficiency" enabled on your iPhone (Settings → Camera → Formats) and convert to JPG only when you need to share photos with non-Apple recipients. If you ever do want every new photo to be JPG by default, switch the same setting to "Most Compatible" — but expect your photo library to grow roughly twice as fast.
HEIC vs HEIF vs HEVC — what's the difference?
HEIF is the broader image container standard, HEIC is Apple's particular extension and compression choice within HEIF, and HEVC (also known as H.265) is the underlying video codec used to compress the pixel data. In practice you only see .heic and occasionally .heif as file extensions. Both are decoded the same way and Converter.Plus handles either interchangeably.
Frequently asked questions
Can I open a HEIC file on Windows 10?
Yes, but only after installing the free HEIF Image Extensions from the Microsoft Store. The simpler approach for most people is to convert the HEIC to JPG once using Converter.Plus — no installation, no Microsoft account needed.
Why does my Android phone show iPhone photos as broken?
Most Android system galleries don't ship a HEIC decoder. Either ask the sender to AirDrop or share via an iCloud link (which converts to JPG on the fly), or convert the .heic file yourself with Converter.Plus.
Is HEIC the same quality as JPG?
At the same file size, HEIC looks visibly better. At the same perceived quality, HEIC is roughly half the file size. The format itself is technically superior; the only reason JPG remains the lowest-common-denominator default is universal support.