Guide · 2026-05-08
HEIC vs JPG: Which to Use and How to Convert (Free)
Since iOS 11 (2017), iPhones default to HEIC format for photos. It's a smarter format — files are about half the size of JPG with the same visual quality. But HEIC has one big problem: many devices and platforms still don't support it. So when should you keep HEIC, when should you convert to JPG, and what's the easiest way to do it?
What is HEIC, exactly?
HEIC stands for High Efficiency Image Container. It's Apple's implementation of HEIF (High Efficiency Image File Format), based on the HEVC video codec. The trick: it uses inter-frame compression techniques from video to compress still images much more efficiently than JPG's older DCT approach.
Real-world saving: a typical iPhone photo is 2-3 MB as JPG, 1-1.5 MB as HEIC. Same quality. Half the storage.
When HEIC is great
- Storage on your iPhone — twice as many photos in the same space.
- iCloud Photos sync — faster sync, less bandwidth.
- AirDrop between Apple devices — fast.
- Modern Macs (Catalina+) — open natively.
When HEIC is a pain
- Sending to non-Apple users — they may not be able to open it.
- Uploading to old web platforms — many don't accept HEIC.
- Editing in older software — Photoshop CS6 won't open HEIC.
- Embedding in documents — Word, Google Docs may not preview HEIC.
- Posting to some social media — varies by platform.
Option 1: Stop iPhone from making HEIC files
If you regularly need JPG, force iPhone to capture in JPG instead:
- Open Settings → Camera → Formats.
- Choose Most Compatible instead of "High Efficiency".
Trade-off: photos take 2x more storage. Useful for shared family iPhones or when most of your audience is non-Apple.
Option 2: Convert HEIC to JPG when needed
Better approach: keep HEIC for storage efficiency, convert to JPG only when you need to share. This way you get both benefits.
Free, browser-based: BunnyConvert
- Open bunnyconvert.com/heic-to-jpg in any browser.
- Drag and drop one or more HEIC files.
- Click Convert → download JPG files (or a ZIP for many).
The conversion happens in your browser — your photos are never uploaded to any server. Free, no signup, no watermark.
On Mac (Preview)
- Open HEIC in Preview.
- File → Export → Format: JPEG → Save.
On Windows (paid)
Windows 11 needs the HEIF Image Extensions ($0.99) to open HEIC. Easier to use BunnyConvert.
Quality difference: HEIC vs JPG
Both are lossy formats. At the same file size, HEIC is visibly higher quality. But when converting:
- HEIC → JPG re-encodes the image. There's a tiny additional quality loss (negligible for screen viewing).
- For print at 12x16 inches, the loss is invisible.
- For pixel-peeping at 200% zoom, you may see slight smoothing of fine details.
Verdict: for everyday use, the conversion is lossless to your eye.
When to use which — quick guide
| Use case | Format |
|---|---|
| iPhone storage | HEIC |
| iCloud Photos | HEIC |
| Send to Android user | JPG |
| Post on social media | JPG (most platforms auto-convert anyway) |
| Email attachment | JPG (universal) |
| Insert in Word document | JPG |
| Print at photo lab | JPG |
| Edit in Photoshop CC | HEIC works (CC 2020+) |