iPhone and Apple device photography
HEIC is the default camera format on iPhones and iPads, used to store photos at half the file size of JPG with equivalent or better visual quality.
Format Encyclopedia
HEIC File Format
HEIC is a widely used image file format with broad support across tools and platforms.
Format authority
Image format reference
MIME type: application/octet-stream
Extension: .heic
Category: image
Supported OS: Windows, macOS, Linux, iOS, Android
Quick answer
What is HEIC?
HEIC — High Efficiency Image Container format used by Apple devices that delivers higher quality than JPG at roughly half the file size.
HEIC is an image file format. High Efficiency Image Container format used by Apple devices that delivers higher quality than JPG at roughly half the file size. It is commonly used in workflows that require reliable image handling and is supported by a wide range of applications and online tools.
Use cases
Common uses of HEIC
iCloud and Apple ecosystem sharing
HEIC files sync efficiently through iCloud and share natively between Apple devices in Messages, AirDrop, and Photos.
Live Photos and burst sequences
HEIC containers support Apple Live Photos and burst image sequences in a single file, preserving motion and context alongside the still image.
Space-efficient photo storage
HEIC allows iPhone users to store roughly twice as many photos compared to JPG at the same perceived quality, reducing storage pressure.
High dynamic range and wide color
HEIC preserves the full HDR and wide color gamut captured by modern iPhone cameras, retaining detail in highlights and shadows.
Comparisons
HEIC vs other formats
HEIC vs JPG
HEIC stores the same perceived quality as JPG at roughly half the file size and supports HDR, but JPG has far wider compatibility outside the Apple ecosystem.
HEIC vs PNG
HEIC is more efficient than PNG for photographic images, but PNG is lossless and universally supported, making it preferable when exact quality preservation is required.
HEIC vs WEBP
Both HEIC and WebP offer better compression than JPG, but WebP has broader browser and platform support while HEIC is better integrated in the Apple ecosystem.
Overview
Format summary
History
HEIC has a long history as a practical file format in its category.
Specification
HEIC is defined by an established file specification and is widely documented by the format community.
Developer
HEIC is maintained through its standardization body and broad ecosystem support. Open formats are often improved by community contributors and software vendors.
Technical details
File format characteristics
Compression
Compression behavior varies by file content and encoder settings.
Encoding
Encoding depends on the format family and standard codec definitions.
Metadata
This format carries metadata in its standard container or file headers.
Performance
Smaller files open faster and are easier to transfer.
Best practices
How to use this format well
Keep originals
Save a copy of the original file before converting or editing.
Use compatible tools
Choose software that explicitly supports the format for best results.
Advantages
Why use this format
Wide support
HEIC is supported by many applications and services.
Interoperability
The format is recognized across platforms and workflow tools.
Disadvantages
Format limitations
File size
Some formats can produce large files depending on quality settings.
Format complexity
Advanced features may not be supported by every tool.
FAQ
Frequently asked questions
HEIC is a file format used in image workflows.
Most modern applications in the category support this format.
Yes, it is designed for cross-platform use and broad compatibility.
Yes, many tools can convert it to other related file formats.
Use a compatible viewer or editor for the format.
Metadata handling depends on the format and the tool used.
Related formats
Related Format Guides
Related converters
Conversion tools for this format
Troubleshooting
Common problems and fixes
Check the extension
Confirm the file uses the correct extension and file header.
Try a different tool
Use another application if the current tool cannot open the file.
Reference