HEIF Converter
Convert files to and from HEIF online for free. Fast, secure, and high-quality file conversion with no sign-up or software required.
Maximum file size is 1GB
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What is a HEIF file?
The High Efficiency Image File Format (HEIF) is a container format defined by MPEG-H Part 12 (ISO/IEC 23008-12) tailored for the storage of individual images and image sequences. It is based on the ISO Base Media File Format (ISOBMFF) and separates the container structure from the image encoding, allowing support for various codecs including HEVC (H.265) and AVC (H.264). HEIF supports computational photography features such as auxiliary image items (depth maps, alpha planes), burst photography, and audio metadata.
How to open a HEIF file
HEIF files are natively supported by modern Apple ecosystems (macOS Mojave+, iOS 11+) and Windows 10/11 via specific system extensions. While identical in structure to HEIC, files explicitly using the .heif extension may contain data encoded with codecs other than HEVC. To view these files on unsupported platforms, cross-platform viewers like XnView MP or image manipulation software like Adobe Photoshop (2020 release and later) are recommended.
HEIF Technical Info
- Full Name
- High Efficiency Image File Format
- Developed By
- MPEG (Moving Picture Experts Group)
- Initial Release
- 2015
- MIME Type
- image/heif
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