Windows: two codec packs and one escape hatch

Windows 10 and 11 don’t ship with HEIF decode — but Microsoft publishes the missing piece:

1. Open the Microsoft Store and install HEIF Image Extensions (free). File Explorer thumbnails, the Photos app, Paint and most built-in viewers start reading .heic immediately.
2. If a file still refuses (some HEIC variants need it), add HEVC Video Extensions — the plugin that unlocks the actual HEVC bitstream. It’s a $0.99 download in some regions, or preinstalled/licensed on many OEM machines.

The escape hatch when you can’t install anything — locked-down work machines, a friend’s PC — is conversion. The converter on this site decodes HEIC entirely inside the browser tab, so it works on machines where you have no install rights and nothing is sent anywhere.

Android: version-dependent

• Android 10 and later — the platform added HEIF decode in 2019. Google Photos, most gallery apps and file pickers read .heic on Pixel, Samsung, OnePlus and friends. A few budget models skip the codec license; if yours does, the file shows as a gray thumbnail.
• Android 9 and older — essentially no support. Google Photos still displays HEIC because it bundles its own codec; local apps won’t.

For sharing to Android users the reliable move is converting first — a JPG opens on every Android ever sold.

What iOS already does when you share

The confusing part: iPhones convert automatically sometimes, so behavior looks random:

Channel	What the recipient gets
Mail / share sheet (default)	JPEG — transcoded on send
Messages to another iPhone	HEIC usually, JPEG to non-Apple threads
AirDrop → Mac	Original .heic
USB copy with “Automatic”	JPEG
USB copy with “Keep Originals”	Original .heic
iCloud link / Shared Album	Usually JPEG for non-Apple viewers
Google Drive / Dropbox upload	Original .heic (their viewers decode it)

If the recipient keeps getting a .heic they can’t open, the fix is one of: resend through Mail/share sheet, flip transfer to Automatic, or convert the file before sending.

When converting is the answer

Codecs help your machine; they do nothing for the person you’re sending to. Convert when:

• the file is going to an upload form, CMS, marketplace or government portal (most reject .heic outright),
• you’re sending to a mixed/unknown audience and can’t control their software,
• you’re archiving for the long term and want format longevity over compression elegance,
• a printing service or frame maker wants “JPEG only” — which is nearly all of them.

The converter handles the batch case locally — drop the folder’s worth of files in, get JPGs out, no installs on either end.

Frequently asked questions

Is the Windows HEIF extension free?

'HEIF Image Extensions' from Microsoft is free and covers decode for stills. Some files also ask for the 'HEVC Video Extensions' plugin, which costs $0.99 in some regions — installing it (or the free 'from device manufacturer' variant where offered) removes the last blocker.

Why can Google Photos show my HEIC but my phone's gallery can't?

Google Photos decodes server-side or with bundled codecs — it's not proof your OS supports the format. Local gallery support depends on the Android version and the phone maker's codec bundle.

If I email a .heic from my iPhone, what does the recipient get?

Usually a JPEG — iOS transcodes when you share through Mail or most share-sheet targets set to automatic. The .heic survives only through channels that copy the file verbatim (AirDrop to a Mac, USB with 'Keep Originals', some cloud drives).

Can I open HEIC in a browser without installing anything?

Not natively in Chrome/Edge/Firefox — they can't decode it. The options are a codec/OS-level fix, a conversion tool like this one (decodes locally — nothing uploaded), or a viewer that bundles its own decoder.