iPhone and iPad save camera photos in HEIC format to reduce storage usage, but Windows PCs, older Mac devices, and most online platforms cannot open HEIC files natively. Uploading HEIC photos to blogs, social media, and email results in broken image previews. Many free HEIC converters only process single photos at a time or compress image quality heavily during conversion. I tested five cross-platform batch conversion tools that handle hundreds of HEIC photos at once with zero visual quality loss.
1. iMazing HEIC Converter (Mac + Windows Desktop)
iMazing’s dedicated HEIC converter is my top pick for bulk photo conversion, fully free for personal use with no hidden paywalls. You drag entire folders of HEIC photos into the app, select JPG output quality, and convert hundreds of images in one batch session. It preserves original photo metadata, resolution, and color grading without blurring portrait or landscape details.
The software runs offline locally, so private phone photos never upload to external cloud servers during conversion. Separate installation packages support both Windows 11 and all modern macOS versions.
2. CopyTrans HEIC For Windows
CopyTrans adds native HEIC support directly to Windows File Explorer, so you can view HEIC thumbnails and right-click convert single or bulk photos to JPG without opening separate software. The free integration tool works seamlessly with all Windows photo editors and office software, eliminating extra conversion steps for casual users.
3. Preview (Built-In Mac Native Tool)
Every Mac’s Preview app includes free HEIC to JPG batch conversion with zero downloads required. Select all HEIC photos in Finder, open inside Preview, highlight all image thumbnails, navigate to File > Export Selected Images, and choose JPG as the output format with adjustable quality sliders. It handles large photo batches smoothly on both Intel and Apple Silicon MacBooks.
4. CloudConvert Online HEIC Converter
CloudConvert’s web tool supports batch HEIC conversion up to 50 photos per session for free personal use, compatible with Windows, Mac, and Chromebook browsers. You upload photo folders directly from Google Drive or Dropbox instead of local device storage, great for users storing iPhone photos on cloud platforms.
5. XnView MP Cross-Platform Image Tool
XnView MP is open-source free image viewer/converter for Windows, Mac, and Linux. Its batch processing module converts thousands of HEIC photos to JPG, PNG, or WebP simultaneously, with advanced quality control sliders to balance file size and visual clarity. Photographers rely on this tool for bulk iPhone photo archive conversions every year.
Best Batch Conversion Workflow
Use iMazing HEIC Converter if you process hundreds of local iPhone photos offline. Mac owners can skip third-party software entirely using the built-in Preview app. Windows users who only need occasional single-photo conversion benefit most from CopyTrans HEIC’s native file explorer integration.
For professional photographers converting tens of thousands of images monthly, affordable premium batch image processing software bundles are available via Amazon affiliate links to remove daily file limits.
Disclosure: This post contains affiliate links. We may earn a small commission at zero extra cost to you if you purchase software through our links. All tool reviews are based on our independent real-world testing for 2+ months.