HEIC vs JPG: What’s the Difference, and When Should You Convert iPhone Photos?

Quick answer

HEIC is a modern image container commonly used by Apple devices because it can store high-quality photos efficiently. JPG is older but far more universally accepted by websites, apps and older devices. Keep HEIC when your workflow supports it and you want efficient storage. Convert to JPG when compatibility matters more than keeping the original HEIC file.

Why does an iPhone use HEIC?

Apple introduced support for HEIF photos with iOS 11 and macOS High Sierra. HEIF stands for High Efficiency Image File Format, while .heic is a common filename extension used for HEIF images that contain HEVC-compressed image data.

The practical reason is efficiency. Apple explains that HEIF can use less storage than older formats while maintaining comparable visual quality.

That makes HEIC useful for a phone camera, where a person may accumulate tens of thousands of photos.

HEIC and JPG are not the same kind of choice

JPG is built around a very mature, widely supported photographic image format. It is lossy, which means the encoder discards some image information to reduce file size.

HEIC is a container based on HEIF. It can hold more than the simple flattened image people usually associate with a JPEG workflow, depending on how the file was created.

For everyday users, however, the main difference is simpler:

Is HEIC better quality than JPG?

There is no meaningful universal answer based only on the file extension.

Quality depends on the source image, encoder, compression level, bit depth, color information and whether the image has already been compressed before.

A poorly encoded HEIC can look worse than a well-encoded JPG. A heavily compressed JPG can look worse than an HEIC exported from the same original.

The useful question is therefore not “which extension always has better quality?” but “which format better fits the next step in my workflow?”

When should you keep HEIC?

Keep the original HEIC when:

• your devices and editing software open it correctly;
• you are storing the original iPhone capture;
• you do not need to upload the photo to an incompatible service;
• you may want to re-export the photo later.

If storage is not a problem, keeping the original and creating a JPG copy for sharing is often safer than replacing the original.

When should you convert HEIC to JPG?

Convert a copy to JPG when:

• a website rejects HEIC;
• an older Windows application cannot open the file;
• a print shop requests JPEG/JPG;
• a marketplace requires JPG;
• you need a broadly compatible attachment;
• you are preparing images for a workflow that only accepts conventional web formats.

Apple itself notes that HEIF media may be converted to a more compatible format such as JPEG when shared with devices or services that do not support the newer format.

Does HEIC to JPG conversion lose quality?

It can.

If the source HEIC is decoded and then encoded as a lossy JPEG, the new JPG is another compressed representation of the image.

That does not mean the photo will automatically look bad. At a sensible JPEG quality setting, visible differences may be small for ordinary photos. But it is still better to keep the original HEIC when the original matters.

Also remember that converting to JPG does not magically reveal detail that was not present in the HEIC source.

What about metadata?

Photos can contain metadata such as capture time, camera information and sometimes location information.

A converter may preserve all metadata, remove all metadata, or keep only selected fields. Check the export settings instead of assuming conversion automatically protects privacy.

ReFormatic exposes metadata controls so you can decide how the converted copy should be handled.

How to convert HEIC to JPG in ReFormatic

1. Open the HEIC to JPG converter.
2. Add the HEIC photos.
3. Confirm JPG as the output format.
4. Choose quality, size and metadata settings if needed.
5. Convert the files.
6. Open one converted JPG and inspect it before deleting or archiving the original.

ReFormatic’s current image workflow is designed to process file contents in the browser rather than uploading the photo itself to a conversion server.

Should you delete the HEIC after converting?

Usually not immediately.

A JPG is a useful compatibility copy. The HEIC may still be the better archival original.

A simple workflow is:

original HEIC → keep
JPG copy → share/upload

That prevents a compatibility task from becoming an accidental destructive edit.

Bottom line

Use HEIC when your ecosystem supports it and you want to retain the efficient original. Use JPG when the photo needs to work almost everywhere.

For most iPhone users, conversion is best treated as creating a compatible copy rather than permanently replacing the source.

Related ReFormatic pages

• HEIC to JPG converter
• HEIC to PNG converter
• HEIC vs HEIF
• JPG vs PNG vs WebP vs AVIF
• Online file converter privacy guide

Try it with ReFormatic

Open the related tool