ShowProSoftware
IOS10 min readFAQ Reference

HEIC to PNG Converter FAQ: Your Questions Answered | ShowPro Software

SP

ShowPro Team

Expert tool tutorials · showprosoftware.com

Updated May 14, 2026

Welcome to the ShowPro Software HEIC to PNG Converter FAQ! This page provides answers to common questions about HEIC (High Efficiency Image Container) files, PNG (Portable Network Graphics) files, and how our free, browser-based converter at [https://showprosoftware.com/tools/heic-to-png](https://showprosoftware.com/tools/heic-to-png) can help you easily convert your HEIC images to the universally compatible PNG format, all without compromising your privacy. Whether you're dealing with iPhone photos that won't open on your computer or need lossless image quality for graphics, this guide will provide the information you need.

What Is HEIC and Why Does My iPhone Use It?

HEIC, or High Efficiency Image Container, is a modern image format adopted by Apple starting with iOS 11 in 2017. It's a container format that typically uses the HEVC (High Efficiency Video Coding), also known as H.265, codec for image compression. The HEVC codec is the same technology used to compress 4K video, allowing for impressive data reduction.

Apple chose HEIC to optimize storage on iPhones and iPads. HEIC files are roughly 50% smaller than JPEGs while maintaining comparable, or even better, image quality. This allows users to store more photos and videos on their devices without sacrificing visual fidelity. You can find settings on your iPhone to automatically convert HEIC to JPEG when transferring files ("Most Compatible" setting) or to keep the HEIC format ("High Efficiency").

HEIC vs PNG: Understanding the Key Differences

HEIC and PNG are both image formats, but they differ significantly in their compression methods and use cases. HEIC uses lossy compression, meaning some image data is discarded during compression to achieve smaller file sizes. While the loss is generally imperceptible, it can become noticeable with repeated editing and saving. On the other hand, PNG employs lossless compression, which preserves all image data, resulting in higher quality images.

Another key difference lies in transparency support. PNG supports an alpha channel, allowing for images with transparent backgrounds, which is essential for logos, graphics, and web design elements. HEIC, by default, does not support transparency, although some variations exist.

In terms of file size, PNG files are typically much larger than HEIC files for the same image. For example, a 2MB HEIC image might become a 5MB PNG file. Therefore, choosing between HEIC and PNG depends on your specific needs. PNG is ideal for graphics, logos, screenshots, and any image where preserving every detail and transparency are crucial. HEIC is better suited for storing and sharing large collections of photos where some quality loss is acceptable in exchange for smaller file sizes.

How Does Browser-Based HEIC Conversion Work?

ShowPro's HEIC to PNG converter uses client-side processing, meaning the entire conversion process happens directly within your web browser. This is a crucial distinction from server-based converters, where your files are uploaded to an external server for processing.

Our converter leverages JavaScript and WebAssembly to decode the HEIC image directly in your browser. Specifically, it utilizes libraries like libheif, a popular open-source HEIC/HEIF decoder, compiled to WebAssembly for efficient execution in the browser environment. This allows for fast and secure conversion without ever sending your files to our servers.

This approach offers several advantages, including enhanced privacy and security, as your photos never leave your device. It also eliminates the need for software installation. Our converter is compatible with modern web browsers, including Chrome, Firefox, Safari, and Edge. Simply visit [https://showprosoftware.com/tools/heic-to-png](https://showprosoftware.com/tools/heic-to-png) and start converting!

Quality and File Size: What to Expect

When converting HEIC to PNG using ShowPro's converter, you can expect a lossless conversion, meaning there will be no quality degradation. The PNG format preserves every pixel of the original HEIC image, ensuring maximum detail retention.

However, due to the lossless nature of PNG, the resulting file size will be larger than the original HEIC file. Typically, a PNG file will be 2 to 5 times larger than its HEIC counterpart. The resolution of the image remains identical throughout the conversion process, meaning the number of pixels stays the same. The color depth is also retained, typically 8-bit per channel (red, green, blue), resulting in a full-color image.

The conversion process preserves basic metadata associated with the image. For complete control over EXIF data, including viewing and removal, consider using our [EXIF Data Viewer & Remover](https://showprosoftware.com/tools/exif-viewer).

Common HEIC Conversion Problems and Solutions

While our HEIC to PNG converter is designed to be user-friendly, you might encounter some issues. Here are some common problems and their solutions:

  • Problem: Conversion fails or freezes.
  • * Solution: This can occur with very large files or when your browser is using a lot of memory. Try closing other browser tabs and applications. There might be a file size limit imposed by your browser. Refreshing the page and trying again can also help.

  • Problem: Colors look different after conversion.
  • * Solution: This is rare but can occur due to color profile handling differences between HEIC and PNG. Ensure your operating system and image viewers are properly configured to handle color profiles.

  • Problem: Can't select HEIC files.
  • * Solution: Ensure that file extensions are visible in Windows. Sometimes, Windows hides file extensions, making it difficult to select the correct HEIC files.

  • Problem: Converted image is too large.
  • * Solution: If file size is a major concern and you don't need transparency, consider using JPEG instead. For converting to JPG, explore other tools or compress the PNG file after conversion using online PNG compression tools.

  • Problem: Batch conversion is slow.
  • * Solution: Browser-based processing has limitations. If you're converting a large batch of files, try processing them in smaller groups to improve performance.

    Privacy and Security of Online HEIC Converters

    When choosing an online HEIC converter, privacy and security should be your top priorities. The crucial distinction lies between server-based and client-side converters. Server-based converters require you to upload your photos to their servers, which raises concerns about data privacy and security. These servers could potentially store, analyze, or even share your personal photos.

    ShowPro's HEIC to PNG converter takes a privacy-first approach. Our tool runs entirely in your browser, using JavaScript and WebAssembly to process your files locally. This means your photos never leave your device, ensuring complete privacy and security.

    To verify that a tool is truly client-side, you can use your browser's developer tools (usually accessed by pressing F12). Open the "Network" tab and monitor network activity while converting a file. If you don't see any file uploads to external servers, it's a good indication that the conversion is happening locally.

    Our commitment to privacy means we don't require any account creation or personal information to use our converter. We don't retain any data from your conversions.

    Alternative Formats: When PNG Isn't the Best Choice

    While PNG is excellent for lossless image quality and transparency, it's not always the best choice for every situation. Here are some alternative formats to consider:

  • JPEG: JPEG offers smaller file sizes and universal compatibility, making it ideal for sharing photos via email or on the web where some quality loss is acceptable.
  • WebP: WebP is a modern image format developed by Google that offers superior compression compared to JPEG and PNG while maintaining good image quality. It's gaining increasing browser support.
  • TIFF: TIFF is a professional-grade image format commonly used in photography and print workflows. It supports lossless compression and can store a wide range of image data.
  • It's also a good practice to keep the original HEIC files for archival purposes, as they offer a balance of image quality and storage efficiency.

    ShowPro Software offers a range of free, browser-based file tools to help you with various image and data conversion needs. In addition to our HEIC to PNG converter, be sure to check out our [Live Photo to GIF](https://showprosoftware.com/tools/live-photo-to-gif), [iPhone Screenshot Stitcher](https://showprosoftware.com/tools/screenshot-stitcher), [Apple Contacts CSV Export](https://showprosoftware.com/tools/contacts-to-csv), and [EXIF Data Viewer & Remover](https://showprosoftware.com/tools/exif-viewer) tools.

    FAQs:

    Q: Is converting HEIC to PNG free?

    A: Yes, using ShowPro's HEIC to PNG converter is completely free. We offer a free, browser-based tool that requires no sign-up, has no conversion limits, and doesn't add watermarks to your converted images. We do offer a Pro plan for power users who may need additional features or support, but the free tier provides unlimited HEIC to PNG conversions without any restrictions. You can access the free tool at [https://showprosoftware.com/tools/heic-to-png](https://showprosoftware.com/tools/heic-to-png).

    Q: Will I lose quality converting HEIC to PNG?

    A: No, you will not lose quality when converting HEIC to PNG using ShowPro's converter. PNG is a lossless image format, meaning every pixel is preserved exactly during the conversion process. Our converter decodes the HEIC image and re-encodes it into the PNG format without introducing any additional compression artifacts or quality degradation. While the file size will increase due to the nature of lossless compression, the visual quality of the image will remain identical to the original HEIC.

    Q: Can I convert multiple HEIC files to PNG at once?

    A: Yes, batch conversion is supported with ShowPro's HEIC to PNG converter. You can select multiple HEIC files from your computer or drag-and-drop an entire folder of HEIC images into the converter. The processing happens sequentially within your browser, converting each file one after the other. For very large batches of files, we recommend processing them in smaller groups to ensure optimal performance and avoid potential browser limitations.

    Q: Why can't Windows open my iPhone HEIC photos?

    A: Windows 10 and 11 can open HEIC files, but they require the HEVC Video Extension to be installed from the Microsoft Store. Unfortunately, this extension often requires a purchase. Converting your HEIC photos to PNG provides universal compatibility, allowing you to view them on any computer or device without the need to install additional software or codecs. Using ShowPro's converter, you can easily convert your HEIC files to PNG for seamless viewing on Windows.

    Q: Are my photos uploaded to a server during conversion?

    A: No, your photos are not uploaded to a server during conversion with ShowPro's HEIC to PNG converter. Our tool runs entirely within your web browser using JavaScript and WebAssembly. This means all the image processing and conversion take place directly on your device, and your files never leave your computer. You can verify this by opening your browser's developer tools (usually by pressing F12) and monitoring the "Network" tab during the conversion process; you will not see any file uploads to external servers.

    Q: What's the maximum file size I can convert?

    A: The maximum file size you can convert with ShowPro's HEIC to PNG converter depends on your device's memory and browser capabilities. As the processing is done within your browser, larger files require more memory. Most modern devices can handle HEIC files up to 50MB easily. If you're working with very large files, ensure you have adequate RAM available and close other browser tabs and applications to free up memory. If you experience issues, try converting the files in smaller batches.

    Q: Should I convert to PNG or JPEG?

    A: The choice between PNG and JPEG depends on your specific needs. Choose PNG when you require transparency, such as for logos or graphics, or when archival quality is paramount and you want to preserve every detail of the image. Choose JPEG when smaller file sizes are essential, such as for email attachments or sharing photos on the web where some quality loss is acceptable. Consider using ShowPro's HEIC to JPG converter (if available) or compressing the PNG file after conversion if file size is a primary concern.

    Q: Does converting HEIC to PNG preserve photo metadata (EXIF)?

    A: ShowPro's HEIC to PNG converter preserves basic metadata during the conversion process. However, for full control over EXIF data, including viewing, editing, or removing it, we recommend using ShowPro's [EXIF Data Viewer & Remover](https://showprosoftware.com/tools/exif-viewer). Metadata includes information such as the date and time the photo was taken, the location (if geotagging is enabled), camera settings, and other details embedded within the image file.

    Try HEIC to PNG Converter — Free

    Browser-based. Private. No upload required. Works on iPhone, Mac, and Windows.

    Open HEIC to PNG Converter Now →