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Image Conversion

Can't Open Apple HEIC Photos on PC? Learn How to Batch Convert to Universal JPG Format in 3 Seconds

OK
OKTool Team
2026-06-10
•17 min read

Have you ever encountered this awkward situation when taking photos with an Apple iPhone: excitedly transferring hundreds of travel photos from your phone to your Windows PC to organize or send to colleagues, only to find that the file extensions are all .heic, the system completely fails to preview them, and double-clicking prompts "unsupported file format"?

This can be said to be a hurdle that every Apple user and professional must cross. Often, to let others see the images, people can only send them one by one to themselves via WeChat's "File Transfer Assistant," using WeChat's automatic compression to convert the format. This method is not only extremely inefficient but also severely degrades the image quality. This article will take you through the ins and outs of the HEIC format and provide a step-by-step guide on how to safely, quickly, and losslessly perform batch format conversion.

1. Why Are Your Apple Photos in HEIC Format?

To solve the problem, we first need to understand its root cause. HEIC (High-Efficiency Image Container) is the default image storage format introduced by Apple starting from iOS 11.

1. The "Black Tech" for Saving Storage Space

Compared to our most familiar JPG or JPEG formats, HEIC employs a more advanced compression algorithm (based on HEVC/H.265 video coding technology). Maintaining the same image clarity and details, the file size of a HEIC photo is usually only half or even less than that of a JPG photo. For Apple users who frequently shoot 4K videos and Live Photos, this significantly saves precious phone storage space.

2. Support for More Advanced Features

HEIC is not just an image format; it is more like a "container." It can package multiple photos (e.g., burst photos, live photos), audio, and depth image data (such as depth-of-field information in Portrait mode) into a single file, something the traditional JPG format absolutely cannot do.

2. Why Can't They Be Opened on a Windows PC?

If HEIC is so great, why does it become a "pain point"? The reason lies in compatibility.

As a legacy format born in the 1990s, the JPG decoder is built into almost all operating systems, browsers, and image processing software in the world. However, HEIC is a new format driven by Apple, and Microsoft did not provide default decoding support for HEIC in earlier Windows 10 systems.

Although you can now pay for relevant decoding plugins in the Microsoft Store to let your computer support HEIC previews, this does not solve the compatibility obstacles you encounter when sending photos to others. You cannot guarantee that every client or colleague who receives the photos has installed the corresponding plugins. Therefore, converting HEIC to the universally applicable JPG format is still the safest and most permanent solution.

3. Say Goodbye to WeChat Image Transfers: The Right Way to Batch Convert in 3 Seconds

When you face dozens or even hundreds of HEIC photos that need converting, never use the low-efficiency and quality-destroying method of WeChat image transfers again. By utilizing modern online image processing tools, you can completely achieve millisecond-level, lossless batch conversion.

Here are the specific steps using a professional Online HEIC to JPG Tool:

Step 1: Open the Installation-Free Online Converter

Open a high-quality image format conversion website in your browser. Unlike traditional PC software that requires downloading installation packages, modern online conversion tools are based on browser front-end technology, ready to use immediately. They not only consume zero computer memory but also avoid the risk of downloading bundled software.

Step 2: Batch Drag and Drop to Upload

Select all the HEIC photos in your computer folder and drag them directly to the webpage's conversion area. Excellent conversion tools usually support uploading 50 or even over 100 images in a single batch. Since the conversion process usually takes place in the cloud or utilizes local browser computing power, the upload and recognition speeds are extremely fast.

Step 3: Choose Output Format and Quality Settings

In the conversion options, set the target format to JPG (or JPEG). At this point, you can usually find a slider for "Quality" or "Resolution."

  • If you seek absolute lossless quality (e.g., for printing or professional retouching), pull the quality slider all the way to 100%.
  • If you want to control file size for easier network sharing, we recommend setting the quality between 80% and 90%. This keeps the converted JPG size within a reasonable range without any naked-eye perceptible loss in quality.

Step 4: One-Click Convert and Download as ZIP

Click the "Start Conversion" button. Within seconds, the system will automatically process all images in parallel. Once completed, you can click the "Download All" button to download all the converted JPG images back to your computer at once in a ZIP archive. After extracting, you will have all your high-definition photos in a universal format.

4. Advanced Tips: Optimizing Converted Images

After converting HEIC to JPG, you might find that to maintain high quality, the generated JPG photos are actually larger than the original HEIC files! If this happens, don't panic; you can use other tools for secondary optimization:

  1. Extreme Size Compression: If your JPG photos reach 5MB or even 10MB, they can easily face restrictions when sent via email. You can directly use an Image Compression tool to easily reduce the size by over 70% without changing the image dimensions by removing redundant EXIF data and optimizing color algorithms.
  2. Standardize Image Dimensions: Whether for formatting slides or uploading to a company intranet, you may need all images to maintain consistent width and height. In this case, you can use the Image Resize feature to batch scale or crop all photos proportionally to the specified dimensions.
  3. Remove Cluttered Backgrounds: If the photos contain products or portraits that need to be extracted, using AI Background Removal technology allows you to detach the subject from complex backgrounds with one click and replace it with a solid color background, enhancing the image's professional look.

5. How to Make Your iPhone Directly Shoot in JPG Format?

If you feel it's too troublesome to convert every time you import them to your computer, and your phone has ample storage space (e.g., 512GB or even 1TB versions), you can solve this problem directly from the source—by setting your iPhone to shoot universally compatible JPG photos.

Here are the steps:

  1. Unlock your iPhone and enter the system's built-in "Settings" app.
  2. Scroll down to find and tap the "Camera" option.
  3. In the Camera settings, tap "Formats" at the very top.
  4. Under the "Camera Capture" section, you will see two options: "High Efficiency" and "Most Compatible".
    • High Efficiency: Shoots and saves in HEIC format.
    • Most Compatible: Shoots and saves in JPG format.
  5. Change the selection to "Most Compatible".

Once set, all photos you take with the default camera in the future will automatically be saved in JPG format and will open perfectly when transferred directly to any computer. Note that after enabling this option, high-definition videos will also use H.264 encoding, which significantly increases the storage space required.

6. Conclusion

Although the HEIC format is highly advanced technologically, it still faces compatibility barriers in today's office environments that cannot be ignored. Understanding the principles behind it helps us manage our digital assets better. When facing HEIC photos that cannot be opened, there's no need to be anxious; utilizing powerful online conversion tools can solve the problem in batches within 3 seconds. Combined with auxiliary tools like compression and cropping, your images will display perfectly in any scenario. We hope this practical guide will be a handy assistant in boosting your work efficiency!