HEIC vs. JPG: Which Format Should You Use?

If you own an iPhone, you have probably encountered the HEIC vs. JPG debate — whether it was a friend who could not open your photos or a website that rejected your upload. This guide breaks down everything you need to know about both formats so you can make the right choice for each situation.

What Is HEIC?

HEIC (High Efficiency Image Container) is Apple’s photo format, introduced as the default on iPhone with iOS 11 in 2017. It is based on the HEVC (H.265) video codec, which achieves significantly better compression than the aging JPEG standard.

Apple adopted HEIC for one primary reason: storage efficiency. A 12-megapixel iPhone photo saved as HEIC is typically 3–5 MB. The same photo as JPEG is 6–10 MB. With HEIC, you can store roughly twice as many photos in the same storage space.

HEIC also supports features JPEG cannot:

• 10-bit HDR color — more color depth for bright highlights and shadows
• Live Photos — stores the still image and the short video clip together
• Depth maps — stores portrait mode depth data for re-editing later
• Burst sequences — stores multiple frames efficiently
• Transparency — technically supported, though rarely used in camera photos

What Is JPEG / JPG?

JPEG (Joint Photographic Experts Group) has been the dominant photo format since its standardization in 1992. It uses lossy compression to dramatically reduce file sizes while maintaining acceptable visual quality for photographs.

JPEG’s greatest strength is its universal compatibility. Every camera, smartphone, computer, web browser, image editor, social media platform, and print shop on the planet understands JPEG. It is the lingua franca of digital photography.

HEIC vs. JPEG: Side-by-Side Comparison

File Size: HEIC Wins Clearly

In Apple’s benchmarks and real-world tests, HEIC files are consistently about 50% smaller than JPEG at equivalent visual quality.

Typical file sizes for a 12-megapixel iPhone 15 photo:

• HEIC: 3–6 MB
• JPEG: 5–12 MB

For someone who takes hundreds or thousands of photos, this difference adds up to gigabytes of storage saved on their phone. This is why Apple made HEIC the default — storage is a premium resource on iPhones.

Quality: Essentially Equal, HEIC Technically Better

At matched quality settings, most people cannot tell HEIC from JPEG in a side-by-side comparison on a screen. The formats produce perceptually similar results for photographic content.

In technical terms, HEIC is superior:

• 10-bit color depth vs. JPEG’s 8-bit
• Better HDR handling
• More accurate highlight and shadow detail
• Fewer compression artifacts at equivalent quality levels

The difference is most visible at lower quality settings — HEIC maintains quality better as you reduce file size. At high quality settings (as Apple uses by default), both formats look essentially identical on standard displays.

Compatibility: JPEG Wins by a Wide Margin

This is where JPEG’s 30-year head start matters. HEIC is a relatively new format with spotty support outside the Apple ecosystem:

Windows: Windows 10 and 11 can open HEIC in the Photos app if you have the HEIF Image Extensions installed from the Microsoft Store. Without it, Windows shows HEIC as an unrecognized file type. Many Windows users have never installed this extension.

Android: HEIC support on Android is limited. Most Android phones and apps cannot display HEIC files, which makes sharing photos between iPhone and Android users frustrating.

Web browsers: Only Safari supports HEIC on the web. Chrome, Firefox, and Edge do not render HEIC images. This means HEIC images cannot be embedded in websites.

Social media: Instagram, Facebook, Twitter/X, TikTok, and most platforms either reject HEIC uploads or silently convert them (often with unpredictable results). Most platforms require JPEG, PNG, or WebP.

Photo editing software: Older versions of Photoshop and Lightroom require a plugin for HEIC. Newer versions (Photoshop CC 2019+, Lightroom Classic recent versions) have added support, but many users do not keep their software updated.

Print services: Most online print shops (Shutterfly, Snapfish, Walgreens Photo) do not accept HEIC files. You will need to convert to JPEG before ordering prints.

When to Keep HEIC

HEIC is the right format in these situations:

Keeping photos on your iPhone. HEIC is the optimal storage format for iPhone. You get double the photos for the same space, with full quality preserved.

Sharing Apple-to-Apple. AirDropping to a Mac, iPad, or another iPhone works seamlessly with HEIC. No conversion needed.

Backing up to iCloud. iCloud Photos stores your originals in HEIC. The format is preserved perfectly, and Apple can serve JPEG previews to non-HEIC-capable devices automatically.

Professional archiving on Mac. If your workflow stays within the Apple ecosystem (iPhone → Mac → Photos.app or Lightroom on Mac), HEIC works fine throughout.

Long-term storage with re-editing in mind. HEIC preserves Live Photo data, depth maps, and HDR information that JPEG cannot store. If you want to re-edit portraits or Live Photos later, keep the HEIC original.

When to Convert HEIC to JPG

Convert HEIC to JPEG when:

Sharing with Windows or Android users. They likely cannot open HEIC. Send JPEG to ensure they can view your photos without any additional steps.

Uploading to social media. Most platforms require JPEG. Converting before upload avoids silent conversion or upload failures.

Sending to print services. Order prints as JPEG to ensure the print shop accepts and correctly processes your files.

Using with older software. If your editing software predates HEIC support, convert to JPEG first.

Posting images on a website. Web browsers do not render HEIC (except Safari). Use JPEG (or WebP for modern browsers).

Sending to clients or colleagues. Unless you know they are using Mac, assume they need JPEG.

Compatibility over storage. When the photos are going to a final destination and you no longer need the HEIC advantages, JPEG is simpler and more universal.

How to Convert HEIC to JPG

Browser-Based (Fastest, Any Platform)

pixconv.io/heic-to-jpg converts HEIC to JPG directly in your browser — no upload, no account, no software to install. Drop your files, download the JPGs.

On iPhone (Automatic During Transfer)

You can configure your iPhone to automatically convert HEIC to JPEG when transferring to a PC or Mac:

Settings → Photos → Transfer to Mac or PC → Automatic

This setting converts to JPEG during USB transfer only. Photos remain as HEIC on the iPhone.

On iPhone (Shoot in JPEG from the Start)

To stop creating HEIC files entirely:

Settings → Camera → Formats → Most Compatible

This makes your iPhone shoot JPEG instead of HEIC. You lose the file size efficiency, but every photo is universally compatible from the start.

On Mac (Preview App)

1. Open the HEIC file in Preview.
2. File → Export.
3. Choose JPEG from the Format dropdown.
4. Set quality and click Save.

For batch conversion in Preview:

1. Select all HEIC files → Open with Preview.
2. Select all thumbnails (⌘A).
3. File → Export Selected Images → JPEG.

On Windows

Windows does not have a built-in HEIC → JPEG conversion tool. Options:

• Install the HEIF Image Extensions from the Microsoft Store, then open and save as JPEG in Photos.
• Use a browser-based converter like pixconv.io/heic-to-jpg.
• Use a dedicated free tool like IrfanView.

Does Converting HEIC to JPEG Reduce Quality?

At 90–95% JPEG quality settings, the converted file is visually indistinguishable from the HEIC original on any standard screen. The difference is imperceptible.

At lower quality settings, JPEG shows more compression artifacts than HEIC would at the same compression ratio — but at 90%+, this is not a practical concern.

What you do lose:

• HDR data — JPEG cannot store 10-bit HDR color
• Live Photo video — only the still frame is converted
• Depth map — portrait mode re-editing data is lost
• EXIF metadata — GPS, date, and camera settings are usually preserved in JPEG, but some converters may strip this

For most sharing purposes, these limitations are irrelevant. For professional or archival use, keep the HEIC original.

Summary: HEIC or JPG?

Keep photos as HEIC when: storing on iPhone, backing up to iCloud, or working within Apple’s ecosystem.

Convert to JPEG when: sharing with non-Apple users, uploading to social media, ordering prints, emailing photos, or using software that does not support HEIC.

The practical rule: HEIC for storage, JPEG for sharing.

Frequently Asked Questions

Should I set my iPhone to shoot in HEIC or JPEG?

Keep HEIC (Most Efficient) for storage efficiency — you get twice the photos in the same space. Convert to JPEG selectively when you need to share, upload, or use photos outside the Apple ecosystem.

Does my iPhone automatically convert HEIC when sharing?

It depends on the method. AirDrop to Mac or iPhone sends HEIC. Email from the Photos app sends JPEG by default. USB transfer can be set to auto-convert. Each method behaves differently.

Can Windows open HEIC files?

Windows 11 can, with the HEIF Image Extensions installed from the Microsoft Store. Windows 10 requires the extension. Older Windows versions cannot open HEIC at all.

Will social media platforms accept HEIC?

Most do not, or they silently convert with unpredictable results. Instagram, Facebook, and Twitter/X all work best with JPEG uploads. Convert before uploading for predictable results.

How do I convert HEIC to JPG for free?

pixconv.io/heic-to-jpg converts HEIC to JPG in your browser — free, no upload, no account. Preview on Mac and the Photos app on Windows also work.

Does converting HEIC to JPEG reduce quality?

At 90–95% quality, the visual difference is imperceptible. You will lose HEIC-specific data like Live Photo video, depth maps, and HDR precision, but the still photo will look identical on any standard display.