HEIF

Writable

image

The High Efficiency Image File Format (HEIF) is an image format standard defined in ISO/IEC 23008-12 - MPEG-H Part 12. HEIF can store images, image properties, thumbnails and other derivatives, plus image metadata. It can support individual images and image sequences At this time the PRONOM identification signature does not distinguish between individual images and image sequences although this may be desirable.

Identify it

Extensions	`.heic.heif.heifs`
MIME types	`image/heicimage/heifimage/heic-sequenceimage/heif-sequence`
Signatures	`66747970` at byte 4 (HEIF)
PRONOM	`fmt/1101`
Wikidata	`Q24907733`
Library of Congress	`fdd000525fdd000526`

Not sure your file is this? Identify it from its first bytes, in your browser.

Open it

digiKamOpen sourcereads and writes · GNU General Public License, version 2.0 or later
GIMPOpen sourcereads and writes · GNU General Public License, version 3.0
libheifOpen sourcereads and writes · GNU Lesser General Public License, version 3.0 or later / MIT License
ImageMagickOpen sourcereads · ImageMagick License
ImageMagick (WebAssembly)Open sourcereads · Apache-2.0
PhotoRecOpen sourcereads · GNU General Public License
PixenOpen sourcereads · MIT License
Q141647660Open sourcereads · Apache Software License 2.0 / MIT License
ShotwellOpen sourcereads · GNU Lesser General Public License, version 2.1 or later
Canon EOS R50writes
Fujifilm GFX100 IIwrites
Zoner Photo Studiowrites
Acorn Image Editorreads
Adobe Photoshop Elementsreads
Affinity Photoreads
Microsoft Photosreads · Microsoft end-user license agreement
PDF Gurureads
Q140074832reads
Q472277reads · freeware
Q827328reads · end-user license agreement

Convert it

Convert a file in your browser The steps marked “in browser” run on your machine; nothing is uploaded.

To	With	Fidelity	Command and losses
BMP 5.0	ImageMagick (WebAssembly)	Lossless	in browser Pixels kept; some metadata, colour profiles or layers may be dropped.
PNG	ImageMagick	Lossless	`convert in.heic out.png` Pixels kept; some metadata, colour profiles or layers may be dropped.
PNG	ImageMagick (WebAssembly)	Lossless	in browser Pixels kept; some metadata, colour profiles or layers may be dropped.
Quite OK Image Format	ImageMagick (WebAssembly)	Lossless	in browser Pixels kept; some metadata, colour profiles or layers may be dropped.
TIFF	ImageMagick	Lossless	`convert in.heic out.tif` Pixels kept; some metadata, colour profiles or layers may be dropped.
TIFF	ImageMagick (WebAssembly)	Lossless	in browser Pixels kept; some metadata, colour profiles or layers may be dropped.
PDF	ImageMagick (WebAssembly)	Partial	in browser The image is embedded in a PDF page.
AVIF	ImageMagick (WebAssembly)	Lossy	in browser Lossy compression.
GIF 89a	ImageMagick	Lossy	`convert in.heic out.gif` Reduced to 256 colours.
GIF 89a	ImageMagick (WebAssembly)	Lossy	in browser Reduced to 256 colours.
ICO	ImageMagick (WebAssembly)	Lossy	in browser Icons are limited to 256 × 256 pixels.
JFIF 1.02	ImageMagick	Lossy	`convert in.heic out.jpg` Lossy compression.
JFIF 1.02	ImageMagick (WebAssembly)	Lossy	in browser Lossy compression.
JPEG XL	ImageMagick (WebAssembly)	Lossy	in browser Lossy compression.
WebP	ImageMagick	Lossy	`convert in.heic out.webp` Lossy compression.
WebP	ImageMagick (WebAssembly)	Lossy	in browser Lossy compression.

Sources

From Converters (FFmpeg, ImageMagick, Pandoc, LibreOffice), WebAssembly engines (ImageMagick, FFmpeg, Pandoc, 7-Zip, GDAL, Assimp, resvg), Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-26.

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