How to Batch Convert HEIC Photos from iPhone
If you have ever tried to share a batch of iPhone photos with a Windows user, upload them to a website, or import them into non-Apple software, you have probably encountered the HEIC compatibility problem. iPhones save photos in HEIC format by default, and while HEIC produces excellent quality at small file sizes, it is not universally supported outside the Apple ecosystem.
Converting one or two photos is simple enough, but many people need to convert dozens or hundreds at once. A vacation album, a product photography session, a real estate showing, or a school event can easily produce 50 to 500 HEIC photos that all need conversion to JPG. Doing this one file at a time is impractical.
This guide covers the fastest methods to batch convert large numbers of HEIC photos from your iPhone to universally compatible formats.
Step-by-Step Instructions
- Transfer HEIC Photos to Your Computer
Connect your iPhone to your computer via USB cable or use AirDrop (Mac), iCloud, or a file sharing app. When transferring via USB on Windows, your iPhone may offer to convert to JPG during transfer (check the transfer settings). On Mac, photos transfer as HEIC by default. For cloud transfer via iCloud, photos download in their original HEIC format.
- Choose a Batch Conversion Method
Several options exist for batch converting HEIC photos. Browser-based tools like imageconvert.co handle batch conversion without any software installation. Desktop applications like the built-in Preview app on Mac can convert batches. On Windows, the built-in Photos app can export as JPG. For very large batches (thousands of files), command-line tools are the fastest option.
- Select Your Output Format and Quality
JPG at quality 85 to 90 is the most common output choice. This produces universally compatible files at roughly the same visual quality as the HEIC originals. The file sizes will be larger than HEIC (typically 2x to 3x) because JPG compression is less efficient. If you need lossless quality, choose PNG, but expect files 5x to 10x larger than the HEIC originals.
- Run the Batch Conversion
For browser-based conversion, select all HEIC files and drop them onto the converter. The conversion happens locally in your browser, so speed depends on your device's processing power. A modern computer converts roughly 5 to 15 photos per second. For 100 photos, expect about 10 to 20 seconds. Download converted files individually or as a single ZIP archive.
- Verify the Converted Photos
After conversion, spot-check several photos to verify quality. Open a few in an image viewer and compare with the HEIC originals. Check that colors look correct, sharpness is preserved, and no images were corrupted during conversion. Verify the file count matches (you should have the same number of JPG files as HEIC originals).
Why iPhones Use HEIC
Apple switched iPhones to HEIC format with iOS 11 in 2017 because HEIC produces roughly 50% smaller files than JPG at the same visual quality. On a 128GB iPhone, this effectively doubles your photo storage capacity. HEIC also supports features JPG cannot: Live Photos, depth maps, HDR metadata, and non-destructive edits.
The trade-off is compatibility. Windows requires a codec extension to view HEIC files. Web browsers other than Safari cannot display HEIC. Many websites, applications, and older software do not accept HEIC uploads. This is why batch conversion is such a common need for iPhone users.
Preventing Future HEIC Headaches
You can change your iPhone's camera to save as JPG instead of HEIC: go to Settings > Camera > Formats and select Most Compatible. This saves photos as JPG and videos as H.264. The trade-off is roughly double the storage usage per photo.
Another option is to keep shooting in HEIC (for the storage savings) and convert only when sharing. This is the approach most people prefer. You get the best of both worlds: efficient storage on your iPhone and universal compatibility when sharing. Batch conversion makes this workflow practical even for large photo libraries.
- Option 1: Switch iPhone to JPG (Settings > Camera > Formats > Most Compatible)
- Option 2: Keep HEIC and batch convert when sharing (best of both worlds)
- Option 3: Use iCloud sharing links (Apple auto-converts for recipients)
- Option 4: AirDrop to Mac (converts automatically for some apps)
Batch Convert with imageconvert.co
imageconvert.co supports batch conversion of HEIC files to JPG, PNG, or WebP. Drop multiple files at once, and the conversion happens entirely in your browser using WebAssembly. No photos are uploaded to any server. Your personal photos stay completely private on your device. Download converted files individually or as a ZIP archive.
Frequently Asked Questions
What is the fastest way to batch convert HEIC to JPG?
For small to medium batches (up to 100 photos), a browser-based converter like imageconvert.co is fastest since it requires no software installation. Drop all files at once and download the converted JPGs as a ZIP. For very large batches (thousands of files), desktop applications or command-line tools are more efficient.
Does converting HEIC to JPG lose quality?
There is a minimal quality loss because HEIC uses more efficient compression than JPG. At JPG quality 90, the difference is essentially invisible to the human eye. The converted JPG files will be larger than the HEIC originals because JPG compression is less efficient, but the visual quality is practically identical.
Can I convert HEIC to JPG without software?
Yes. Browser-based converters like imageconvert.co work without installing any software. They run in your web browser using WebAssembly technology. No download, no installation, no account needed. Just drag and drop your HEIC files.
How do I stop my iPhone from taking HEIC photos?
Go to Settings > Camera > Formats and select Most Compatible. This tells the iPhone camera to save photos as JPG instead of HEIC. The trade-off is that JPG files are roughly twice the size of HEIC files, so you will use more storage space on your phone.
Will converting HEIC to JPG remove EXIF data?
It depends on the conversion tool. Some tools preserve EXIF metadata (date, time, location, camera settings) during conversion, while others strip it. Browser-based converters that use canvas-based conversion typically do not preserve EXIF data. If metadata preservation is important, check the tool's documentation.