HEIC (High Efficiency Image Container) is Apple's preferred image format for photos taken on iPhones and iPads running iOS 11 and later. It produces smaller files with better quality than JPEG at the same settings. But it is not universally supported: many Windows applications, web platforms, older Android devices, and online services do not recognize HEIC files. Converting HEIC to JPG solves the compatibility problem.
What Is HEIC?
HEIC is a container format that typically stores images encoded with the HEIF (High Efficiency Image Format) standard, which in turn uses HEVC (H.265) video compression technology applied to still images. Apple chose it for iPhone cameras starting with iOS 11 because it achieves roughly twice the compression efficiency of JPEG at equivalent visual quality.
A photo that would be 4 MB as a JPEG might be 2 MB as HEIC with the same visible quality. For users with thousands of photos, this represents significant storage savings.
Why HEIC Causes Compatibility Problems
HEIC adoption has been slow outside the Apple ecosystem. Windows 10 and 11 can open HEIC files only with an optional codec installed from the Microsoft Store. Windows 7 cannot open them at all. Many photo editing applications, web upload forms, and email clients still do not support HEIC.
When you share a HEIC photo with someone on Windows or Android, they may see an error or the photo may not open. Many websites reject HEIC uploads. Stock photo platforms, social media sites, and email attachments all work better with JPEG.
HEIC vs JPEG: Quality and File Size
JPEG is a lossy format that has been the web standard for photos since the early 1990s. It offers excellent browser support, wide application compatibility, and adjustable quality settings. The trade-off is that JPEG compression introduces artifacts, particularly around sharp edges and text, especially at lower quality settings.
Converting HEIC to JPEG introduces a small quality loss because JPEG is lossy. If you convert at a high quality setting (85 to 95 percent), the difference is typically invisible to the human eye for standard viewing. For professional or archival purposes, converting to PNG (lossless) preserves all image data but produces much larger files.
When to Convert
Convert to JPG when you need to: share photos with Windows users, upload photos to web platforms that do not support HEIC, use photos in applications or workflows that require JPEG, send photos as email attachments to recipients on non-Apple devices, or submit photos to services that validate file type by MIME type or extension.
Preserving Metadata
HEIC files carry metadata: shooting date and time, GPS location, camera settings (aperture, shutter speed, ISO), and orientation. When converting, check whether the tool preserves EXIF metadata in the output JPEG. Most quality converters include this by default, which is important for photo organization and geolocation features in gallery apps.
Privacy Considerations
If your photos contain personal or sensitive content, consider whether uploading them to an online service is appropriate. Browser-based converters that process files locally (using JavaScript and WebAssembly on your device) are a better choice for private photos because no data is sent to a server.
Batch Conversion
If you have many HEIC photos to convert, a tool that supports batch conversion saves significant time. You can upload multiple files at once and download them all as JPEGs without converting one at a time.
Using the DevHexLab HEIC to JPG Converter
Open the tool at /tools/images/heic-to-jpg-converter. Upload your HEIC files (single or batch), and the tool converts them to JPEG in your browser. Your photos are never uploaded to a server. Download the converted JPG files ready for sharing or uploading anywhere.