What Is HEIC and How to Open It on Windows

Updated October 13, 2026 · imgtez

If you have ever copied photos from an iPhone to a Windows PC, emailed a picture from an iPad, or downloaded an image from iCloud, you have probably met a file ending in .heic. On a Mac it opens instantly. On Windows it often shows a blank thumbnail, an error, or a prompt to buy an extension. This guide explains what HEIC actually is, why it behaves this way, and the practical ways to open or convert it on Windows 10 and Windows 11.

What HEIC actually is

HEIC stands for High Efficiency Image Container. It is Apple's name for images stored in the HEIF format (High Efficiency Image File Format), a standard published by the Moving Picture Experts Group (MPEG) in 2015. HEIF itself is just a container: it describes how to store one or more images, thumbnails, depth maps and metadata inside a single file. The pictures inside a .heic file are compressed with HEVC, also known as H.265, the same codec used by many 4K video streams.

Apple adopted HEIC as the default camera format with iOS 11 in 2017, starting with the iPhone 7 and later models. The reason is simple: storage. A HEIC photo is typically around half the size of a JPEG of comparable visual quality. Across thousands of photos, that saves gigabytes of space on the phone and in iCloud. HEIC also supports features JPEG cannot handle well, such as 10-bit color, transparency, image sequences (used for Live Photos and bursts) and embedded depth information used for Portrait mode effects.

Why Windows has trouble opening HEIC

The difficulty is not the container; it is the HEVC compression inside. HEVC is covered by a large pool of patents, and companies that ship an HEVC decoder generally have to pay licensing fees. Apple pays for and includes the decoder on every Mac and iPhone. Microsoft chose not to bundle it for free in every copy of Windows. Instead, Windows splits support into two pieces:

• HEIF Image Extensions – a free package from the Microsoft Store that understands the HEIF container.
• HEVC Video Extensions – the actual decoder, sold in the Microsoft Store for a small fee (historically US$0.99). Some PCs come with it pre-installed by the manufacturer, which is why HEIC works on some computers and not others.

Without both pieces, the Photos app and File Explorer cannot render the image. Many web browsers also cannot display HEIC: as of 2026, Safari supports it, while Chrome, Edge and Firefox generally do not display HEIC images natively on Windows. Older programs, online forms and printing kiosks frequently reject HEIC uploads entirely.

Option 1: Convert HEIC to JPG in your browser

The fastest universal fix is to convert the file to JPG, which every device and website understands. Our HEIC to JPG converter decodes the image inside your browser using a bundled decoder, so the photo never leaves your computer. You can drag in a whole folder of iPhone pictures, set the JPG quality, optionally resize them, and download everything as a single ZIP file. This works on any Windows PC without installing anything or paying for codecs, and the same page works on Chromebooks, Linux and Macs.

If you need transparency or lossless output, use HEIC to PNG instead. PNG files are larger, but no further quality is lost after the HEVC decode.

Option 2: Install the Microsoft codecs

If you want HEIC files to open by double-clicking, install the extensions:

1. Open the Microsoft Store and search for HEIF Image Extensions. Install it (it is free).
2. Search for HEVC Video Extensions. Install it. If you see a paid version and a free "from Device Manufacturer" version, the free one only installs on PCs licensed for it.
3. Restart the Photos app. HEIC thumbnails should now appear in File Explorer, and Photos can open them and use Save as to export a JPG.

This is a good choice if you receive HEIC files regularly. The downside is that the codecs only help programs that use the Windows imaging system; some third-party editors still will not open the files.

Option 3: Make your iPhone send JPG instead

You can stop the problem at the source. On the iPhone, go to Settings → Camera → Formats and choose Most Compatible. New photos will be saved as JPG (and videos as H.264). Existing photos stay HEIC. The trade-off is that new photos take more storage.

There is also a gentler setting: Settings → Photos → Transfer to Mac or PC → Automatic. With this enabled, the iPhone converts photos to JPG on the fly when you import them over a USB cable using the Windows Photos app, while keeping the space-saving HEIC originals on the phone. Note that this applies only to cable transfers, not to AirDrop, iCloud downloads or messaging apps.

Option 4: Download from iCloud as JPG

When you download photos from iCloud.com, the site may offer the choice between the unmodified original and a "Most Compatible" version. Choosing the compatible option gives you JPG files. The iCloud for Windows app also has a setting to download photos in a compatible format. If you already have a pile of HEIC files, though, converting them locally is usually quicker than re-downloading.

Option 5: Use an image editor

Some free image viewers and editors on Windows include their own HEIC support through open-source libraries such as libheif. They are handy for power users, but check that you download them from the official website, and be aware that support can vary between versions.

Is converting HEIC to JPG bad for quality?

Converting from HEIC to JPG means decoding one lossy format and re-encoding into another lossy format. At a high quality setting (around 85–92%), the difference is not visible in normal viewing or printing. The JPG file will usually be larger than the HEIC, sometimes twice the size, because JPEG compression is less efficient. If you plan to edit the photo heavily, export to PNG first, edit, then save the final result as JPG.

A few HEIC-specific features do not survive conversion: Live Photo motion, depth maps and multiple images in a burst are flattened to a single still frame. Wide-gamut colors may be mapped to standard sRGB. For sharing, printing and uploading, none of this matters.

What about privacy?

Photos contain personal information: faces, homes, documents and often GPS location in their metadata. Many online converters upload your files to a server. That is not necessary. imgtez converts everything with JavaScript running on your own device; you can even disconnect from the internet after the page loads and it will keep working. Because the image is redrawn onto a canvas before saving, the converted file also drops most EXIF metadata, including GPS coordinates, which is usually what you want when sharing.

Quick summary

• HEIC is Apple's default photo format: HEIF container plus HEVC compression, about half the size of JPG.
• Windows needs the HEIF and HEVC extensions to open it, and the HEVC one is not always free.
• For one-off or batch needs, a browser converter like HEIC to JPG is the quickest and most private fix.
• To avoid HEIC in future, set your iPhone camera to Most Compatible or use the Automatic transfer setting.

Still unsure which format to choose after converting? Read our comparison of WebP vs JPG vs PNG.