HEIC vs JPG: A Complete Comparison
HEIC and JPG are two of the most common image formats you'll encounter today, but they serve different purposes and have very different strengths. If you use an iPhone, your camera is shooting HEIC by default — but the rest of the digital world largely runs on JPG.
This guide breaks down the key differences so you can decide which format is right for your needs and understand when (and how) to convert between them.
What is HEIC?
HEIC (High Efficiency Image Container) is a modern image format adopted by Apple as the default for iPhone and iPad photos starting with iOS 11 in 2017. It uses HEVC (H.265) compression technology — the same codec used for 4K and 8K video — to achieve dramatically smaller file sizes while maintaining excellent image quality.
HEIC is more than just an image format — it's a container that can hold multiple images, Live Photos, depth maps, and editing metadata in a single file. For a deeper dive, read our complete guide to the HEIC format.
What is JPG?
JPG (also written as JPEG) stands for Joint Photographic Experts Group, the committee that created the standard in 1992. It's the most widely used image format in the world, supported by virtually every device, application, website, and operating system in existence.
JPG uses lossy compression based on discrete cosine transform (DCT). It discards some image data that the human eye is less likely to notice, achieving significant file size reductions. The level of compression (and thus quality loss) is adjustable, making JPG extremely versatile.
HEIC vs JPG: Side-by-Side Comparison
| Feature | HEIC | JPG |
|---|---|---|
| Compression | HEVC (H.265), lossy or lossless | DCT-based, lossy only |
| File Size | 40-50% smaller at equivalent quality | Larger files for the same visual quality |
| Image Quality | Excellent, fewer artifacts at small sizes | Good, visible artifacts at high compression |
| Color Depth | Up to 16-bit | 8-bit only |
| Color Space | Display P3, wide color gamut | sRGB (P3 via ICC profile) |
| Transparency | Yes (alpha channel supported) | No |
| Multiple Images | Yes (Live Photos, bursts, depth maps) | No (single image only) |
| Browser Support | None (no major browser supports HEIC) | Universal (every browser) |
| Device Support | Apple native; limited elsewhere | Universal (every device and OS) |
| Website Uploads | Rejected by most websites | Accepted everywhere |
| Editing Software | Limited support | Supported by all image editors |
| Year Introduced | 2015 (standard), 2017 (Apple adoption) | 1992 |
| Licensing | Patent-encumbered (HEVC patents) | Essentially royalty-free |
File Size Comparison
One of HEIC's biggest advantages is file size. A typical 12-megapixel iPhone photo saved as HEIC is roughly 1.5-2.5 MB, while the same photo saved as JPG at comparable quality would be 3-5 MB. This adds up significantly:
- 1,000 photos as HEIC: approximately 2 GB
- 1,000 photos as JPG: approximately 4 GB
This 50% savings is why Apple chose HEIC — it lets users store roughly twice as many photos on the same device.
Image Quality Comparison
At the same file size, HEIC produces noticeably better image quality than JPG. HEIC's HEVC compression handles gradients, fine textures, and edges more gracefully, with fewer of the "blocky" or "smudgy" artifacts that JPEG compression is known for.
However, at high quality settings (90%+ in JPG), the visual difference becomes negligible for most people. The quality advantage of HEIC is most apparent at smaller file sizes or lower quality settings, where JPEG artifacts become visible.
When to Use HEIC
HEIC is the better choice when:
- Saving storage space — Keep HEIC as your camera format if you primarily use Apple devices.
- Archiving photos — The smaller file sizes make long-term storage more efficient.
- Staying in the Apple ecosystem — If you share photos between Apple devices, HEIC works seamlessly.
- Preserving wide color gamut — HEIC's Display P3 support preserves the full color range captured by modern iPhone cameras.
- Live Photos and depth data — Only HEIC preserves these features in a single file.
When to Use JPG
JPG is the better choice when:
- Sharing with non-Apple users — JPG works on every device, everywhere.
- Uploading to websites — Virtually all websites accept JPG; most reject HEIC.
- Emailing photos — JPG is universally compatible with all email clients.
- Using with older software — Any application from the last 30 years supports JPG.
- Printing — Print services universally accept JPG.
- Social media — Most platforms prefer or require JPG for uploads.
How to Convert Between HEIC and JPG
The most common need is converting HEIC to JPG for compatibility. There are several methods depending on your platform:
- Online converter (fastest) — Use HEICtoJPG Converter to convert instantly in your browser. Free, private, no upload.
- Windows — Use our online tool, the Windows Photos app, or third-party software. See our Windows conversion guide.
- Mac — Use Preview, Automator, or our online tool. See our Mac conversion guide.
- iPhone — Change camera settings or use our tool in Safari. See our iPhone conversion guide.
The Verdict
HEIC is technically superior — it produces better quality at smaller sizes with more features. But JPG's universal compatibility makes it the safer choice for sharing, uploading, and cross-platform use.
The best approach for most people: keep shooting in HEIC on your iPhone to save storage space, and convert to JPG when you need to share photos outside the Apple ecosystem. Our free HEIC to JPG converter makes that process fast, private, and effortless.