How to Convert HEIC on Windows Without Quality Loss (and Without Paying)

You transferred a batch of iPhone photos to a Windows PC. Or saved an iCloud export. Or pulled photos off a borrowed iPhone onto your laptop. And now you’ve got a folder of .heic files that Windows can’t preview, Photoshop won’t open, and Gmail refuses to attach.

This is a genuinely annoying problem — and a completely solvable one. Here’s how to fix it in about two minutes, without spending money or uploading your photos to anyone.

Why Windows still can’t handle HEIC in 2026

Apple switched the iPhone to HEIC by default with iOS 11 in 2017 — nearly a decade ago. The format is technically excellent: an iPhone photo in HEIC is roughly half the size of the same photo as a JPG, without visible quality loss.

The problem is that Apple designed HEIC around its own ecosystem first. On Windows:

• File Explorer won’t show HEIC thumbnails without extra software
• Microsoft’s HEIC codec on the Microsoft Store was free, then became a $0.99 paid download, and has been pulled from some regions entirely
• Photoshop, Affinity Photo, GIMP — all need additional plugins or codec installs
• Most web services (LinkedIn, eBay, older CMS platforms) simply reject HEIC uploads

Converting to WebP solves every one of these downstream problems at once. WebP opens everywhere, uploads everywhere, and — unlike a raw HEIC file — just works.

How to convert HEIC to WebP in your browser

Modern browsers can decode HEIC files entirely locally via WebAssembly. The same libraries that power HEIC support in macOS Preview (libheif + its HEVC decoder, libde265) are compiled into the SciZone converter — so your browser handles your HEIC files exactly as well as a Mac would, with no install required.

Here’s the process:

1. Open scizone.dev/heic-to-webp in any Windows browser — Edge, Chrome, Firefox, Opera all work.
2. Drag your HEIC files (or the whole folder) onto the page. Conversion starts the moment the files land — no start button, no queue.
3. Watch the progress. On a typical 8-core laptop, 200 iPhone photos take about 30 seconds. HEIC is heavier to decode than JPEG, but it’s still fast.
4. Download the ZIP. Every photo comes back as a WebP file, with full EXIF intact, in the same folder structure you dropped.

No account, no watermark, no size limit. If you want to verify that nothing is being sent to a server, open DevTools → Network before you start and watch during the conversion — there’s nothing outbound.

WebP or JPG — which should you convert to?

Both are valid. Which one depends on what you’re doing with the photos:

Choose WebP for social media, messaging, email, Google Drive, Notion, web galleries — basically everything on a modern device. WhatsApp, Discord, Slack, Gmail all render WebP natively.

Choose JPG for very old print shops, legacy CMS setups, or if you know you’re sending to someone on an ancient version of Outlook. JPG is less efficient but still the safest universal fallback.

For a detailed comparison: WebP vs JPG 2026.

Your EXIF stays intact

iPhone HEIC files carry a lot of metadata: GPS coordinates, capture time, camera settings, lens info, even scene classification hints. This is what allows Google Photos and Apple Photos to organize your library by time and place.

Many online HEIC converters silently strip this data. SciZone copies the full EXIF block onto the WebP output automatically — so your photo library software still knows when and where each shot was taken. If you do want to strip location data before posting photos publicly, run a pass through ExifTool after conversion.

Why not just buy the Microsoft HEIC codec?

A few reasons:

1. It’s $0.99 in most regions, which feels absurd for something the OS should handle
2. It only fixes File Explorer thumbnails — it doesn’t help you convert the files or upload them anywhere
3. It doesn’t help with batch conversion at all
4. It doesn’t exist on Linux, ChromeOS, or older Windows builds

Converting to WebP once solves every downstream problem permanently. The result opens on every OS, uploads everywhere, and takes less disk space than the HEIC original.

Troubleshooting

“Format not supported”: Check that the extension is .heic or .heif. Some phones and iCloud exports on Windows save HEIC files with a .jpg extension — if the file opens fine in Windows, it’s probably already a JPEG.

“It’s slow”: HEIC uses HEVC compression, which is computationally heavy to decode. On a laptop, expect about 5–10 photos per second per CPU core. Closing other heavy browser tabs frees up more cores.

“Photos are rotated wrong”: EXIF orientation is preserved. If a photo looks rotated in one app but not another, those apps disagree on how to interpret the orientation flag — the data itself is correct.

“What about Live Photos?”: Live Photos are two files: a still HEIC and a .mov video sidecar. SciZone converts the still image. For the video portion, use HandBrake or any video converter.

The bottom line

HEIC is a good format trapped in a bad compatibility situation. Converting to WebP is the way out: it works on every OS, every service accepts it, the files are smaller than JPG, and your EXIF stays intact. Bookmark the HEIC to WebP converter — next time you pull photos from an iPhone, this takes about 30 seconds to sort out.