How to Convert HEIC to JPG on Any Device

· 5 min read

If you have ever tried to upload an iPhone photo to a website or share it with a Windows user and gotten an error, you have probably encountered the HEIC format. It is a better image format in many ways, but it is not accepted everywhere. Converting to JPG solves the compatibility problem instantly. A browser-based converter handles the entire job locally without uploading your photos to a server.

Why iPhones use HEIC

HEIC (High Efficiency Image Container) has been the default photo format on iPhones since 2017 (iOS 11). Apple chose it because HEIC files are roughly half the size of equivalent JPEGs with no visible quality difference. That means your phone can store twice as many photos.

The downside: not everything supports it. Windows (older versions), many websites, some email clients, and most online forms expect JPG or PNG.

When you need to convert

How to convert HEIC to JPG

  1. Upload your HEIC files: drag and drop or click to browse. You can upload multiple files at once.
  2. Adjust quality: use the quality slider to balance file size and image quality. 85-90% preserves excellent quality with a reasonable file size.
  3. Convert and download: click "Convert" and download your JPG images. Multiple files come as a ZIP.

A brief history of the HEIC format

HEIC is Apple's branding for HEIF (High Efficiency Image Format), a 2015 ISO/IEC standard developed by MPEG (the same group behind H.264 and H.265 video). HEIF uses the same HEVC (H.265) compression algorithm as 4K Blu-ray video, applied to single images.

Apple was the first major adopter in 2017 with iOS 11, choosing HEIC over JPEG to save device storage. The math is straightforward: a typical HEIC is 1-2 MB where the same JPEG would be 3-5 MB. Across thousands of photos on a phone, that doubles effective capacity.

Other vendors have been slower to adopt:

The format will likely become universal eventually, but in 2026 JPEG remains the lowest common denominator that works literally everywhere.

File size comparison

A typical 12 MP iPhone photo:

Format Typical size Notes
RAW (.HEIF + ProRAW) 25-35 MB Pro/Pro Max iPhones only
HEIC 1-2 MB iPhone default
JPEG (95% quality) 4-5 MB Equivalent quality
JPEG (85% quality) 2-3 MB Slight visible artifacts
JPEG (75% quality) 1-2 MB Visible artifacts
WebP (90% quality) 1.5-2.5 MB Modern alternative
AVIF (90% quality) 1-1.5 MB Newest format

HEIC's compression advantage diminishes for screenshots, documents, and photos with flat colors. It shines on natural photos with gradients (skies, skin tones, foliage).

Preventing the problem on iPhone

You can set your iPhone to save photos as JPG instead of HEIC:

  1. Open Settings
  2. Go to Camera > Formats
  3. Select Most Compatible

This saves photos as JPG directly. The trade-off is larger files on your phone, roughly double the storage per photo.

A second approach: leave HEIC enabled for storage, but configure AirDrop and email to automatically convert to JPEG when sharing. Settings > Photos > "Transfer to Mac or PC" > Automatic. This option converts to JPG only when transferring off the device.

What converting preserves

The HEIC-to-JPG conversion preserves most of what matters:

What is lost:

For most ordinary photo sharing, none of these losses matter. For pro photography workflows, keep the HEIC and convert only the specific images you need to share.

Common pitfalls

Alternative formats to consider

If you control the destination, JPG may not be the best choice:

For most non-Apple-controlled destinations (uploading to a website, sharing with mixed-OS users, printing), JPG is still the safest universal choice in 2026.

Tips

Privacy and sensitive photos

The HEIC-to-JPG converter runs entirely in your browser. The photos you upload, intermediate processing, and the converted JPGs all stay on your device. Nothing is uploaded to a server, logged, or shared with anyone.

This matters because photos often contain very sensitive content: family pictures, ID documents being prepared for upload, screenshots with confidential info, medical photos, photos of private locations with GPS-tagged EXIF. Cloud HEIC converters by design upload your photos to their servers, sometimes retain them for "service improvement" or analytics, and some have been caught leaking uploaded images. A browser-based converter has zero exposure: the photo never leaves your machine.

Browser-based conversion also works offline once the page is loaded, useful for converting photos in low-connectivity environments (international travel, airplanes, remote locations).

Frequently Asked Questions

What is a HEIC file?

HEIC (High Efficiency Image Container) is the default photo format on iPhones since iOS 11 (2017). It produces smaller files than JPG at the same quality, but is not universally supported.

Why does my iPhone save photos as HEIC?

Apple uses HEIC because it produces photos that are roughly half the file size of an equivalent JPEG, saving storage space on your device without sacrificing image quality.

Will converting to JPG reduce quality?

There is a small amount of quality loss during conversion because JPG uses lossy compression. At high quality settings (80-90%), the difference is imperceptible to the human eye.

Can I convert multiple HEIC files at once?

Yes. Upload multiple HEIC files and they will all be converted to JPG. Multiple files are downloaded together as a ZIP.