Guide
What Is a HEIC File? (And How to Open One on Windows)
A HEIC file is a photo saved in the High Efficiency Image Container format — what every recent iPhone and iPad produces by default. If your Windows PC is showing a folder of blank icons where your holiday photos should be, that is the whole story.
The short answer
Convert them. HEIC to PDF if you need documents you can send or file; the Office Converter handles HEIC to JPG or PNG if you want ordinary images. BizTray decodes HEIC itself, so there is no Store codec to hunt down and nothing is uploaded.
What the format actually is
HEIC is a container built on HEIF, which stores images compressed with HEVC — the same video codec as H.265. That lineage is the whole point: video codecs have had enormous engineering investment in squeezing detail into few bytes, and applying that to still images produces roughly half the file size of a JPG at comparable quality.
It also does things JPEG cannot:
- Higher bit depth — smoother gradients, less banding in skies.
- Transparency, which JPEG has never supported.
- Multiple images in one file — how Live Photos and burst sequences are stored.
- Non-destructive edits kept alongside the original.
On a phone with a finite camera roll, halving the storage per photo is a genuinely large win. Apple switched the default in 2017 for good reasons.
Why Windows struggles with it
Not an oversight, and not Apple being difficult. HEVC is patent-encumbered, and shipping a decoder means licensing it. Microsoft's answer was to leave HEIF support out of Windows and offer codec extensions through the Store — with the HEVC Video Extensions historically being a paid item, which is why so many people hit a small paywall to open photos they took themselves.
The result is the familiar experience: photos import from an iPhone, Windows Photos shows blank thumbnails, and File Explorer offers nothing useful.
Is HEIC better than JPG?
Technically, clearly yes. Half the size, better colour depth, more capable.
Practically, it depends entirely on where the photo is going. JPG is universally supported by three decades of accumulated software. HEIC is well supported inside Apple's ecosystem and patchily outside it — plenty of web forms, print services and older applications simply reject it.
So the honest advice: keep HEIC on the phone where the storage saving is real, and convert when a photo needs to go somewhere else. Which is exactly the workflow most people end up at anyway.
If you would rather sidestep it entirely: on the iPhone, Settings → Camera → Formats → Most Compatible switches new photos to JPG. It costs storage and saves this conversation. Existing HEIC photos are unaffected and still need converting.
Converting well
- To PDF — HEIC to PDF is the right choice for photographed documents, receipts and anything being submitted to a form. One PDF per photo or a whole folder merged into one, with EXIF orientation honoured so nothing lands sideways.
- To JPG — for general sharing and uploads. This involves one lossy re-encode, which at default quality is invisible.
- To PNG — only for screenshots, diagrams or images with transparency. For photographs, PNG produces enormous files for no benefit. See JPG vs PNG.
Two things worth knowing: wide-gamut photos are converted to sRGB for predictable viewing and printing, and Live Photos yield their still frame — the motion is not carried into a still format.
Doing it on your own machine
BizTray decodes HEIC without any Microsoft Store purchase, converts whole camera rolls in one run, and does it locally with no upload and no watermark. That last point matters more than it sounds: the HEIC files people most urgently need converted are usually photographs of documents — a signed page, a passport, a receipt for a claim.
A note on why this is free
BizTray shares a portion of your spare internet bandwidth through a vetted partner rather than charging you. It relays other parties' web traffic and never touches your photos or documents. Sharing is switchable off from Settings or the tray, and the tools do not run while it is off. See How it's funded.
Related
- HEIC to PDF — the conversion itself.
- JPG vs PNG — picking the right target format.
- PNG to PDF — the same job for screenshots.
Do it the easy way with BizTray's Image to PDF
PNG, JPG, HEIC, WebP, TIFF and BMP in — one PDF per image, or a whole folder merged into a single document in the order you choose. Rotation from the photo's own EXIF data is honoured, so scans land the right way up. Learn more about Image to PDF.