HEIC tools

What you need to know

HEIC (High Efficiency Image Container) is the default photo format on Apple iPhones since iOS 11 (2017), based on the HEIF (High Efficiency Image File Format) standard using HEVC video compression. HEIC files are typically 40-50 percent smaller than equivalent JPG files while maintaining the same or better visual quality. HEIC supports 16-bit color depth, alpha channel transparency, multiple images in a single file (for Live Photos), image sequences, and rich metadata including depth maps. However, HEIC has limited compatibility outside the Apple ecosystem: many Windows applications, older Android devices, websites, and online services cannot open HEIC files natively, requiring conversion to JPG or PNG for universal use.

Key points

• HEIC is the default photo format on iPhones since iOS 11 (2017)
• HEIC files are typically 40-50 percent smaller than equivalent JPG files
• HEIC supports 16-bit color, transparency, Live Photos, and depth maps
• HEIC compatibility is limited outside Apple devices; conversion is often necessary
• HEIC preserves more dynamic range and color information than JPG

Sharing iPhone photos with non-Apple users

Windows users, Android users, and many online services cannot open HEIC files. Converting to JPG ensures recipients can view the photos without installing additional software or codecs.

Uploading photos to websites and online forms

Many upload forms and content management systems reject HEIC. Converting to JPG first ensures passport photos, marketplace listings, and application uploads are accepted on the first try.

Recommended practices

• Convert HEIC to JPG for sharing and uploading; keep the original HEIC for archival
• Use high quality (90+) when converting HEIC to JPG to preserve the additional color information
• Check whether metadata (GPS, camera info) should be preserved or stripped during conversion
• On iPhone, enable Automatic transfer in Settings to convert HEIC to JPG when transferring to computer
• For web use, consider converting HEIC to WebP for the smallest file sizes after initial JPG conversion

Common mistakes to avoid

• Assuming HEIC files work everywhere: Despite being nearly a decade old, HEIC still lacks universal support. Many websites, email clients, and Windows applications cannot open HEIC files without additional software. Always convert before sharing outside the Apple ecosystem.
• Converting HEIC to low-quality JPG: HEIC contains more color and dynamic range information than JPG. Converting at low quality settings wastes this advantage and produces visibly inferior results. Use quality 90 or higher when converting from HEIC.
• Deleting the original HEIC after conversion: The HEIC file contains more information than the converted JPG. Always keep the original HEIC file for future re-conversion, editing, or archival purposes. The JPG copy is for compatibility, not replacement.