Magick Image File Format

Writable

image

The Magick Image File Format (MIFF) is ImageMagick's own format for storing bitmap images. It stores all metadata known to ImageMagick.

Identify it

Extensions	`.miff.mif`
MIME types	`image/miffimage/x-miff`
PRONOM	`fmt/930`
Wikidata	`Q6731061`

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Open it

ImageMagickOpen sourcereads and writes · ImageMagick License
AbydosOpen sourcereads · GNU Lesser General Public License
ConverseenOpen sourcereads · GNU General Public License, version 3.0
ExifToolOpen sourcereads · Artistic License / GNU General Public License, version 1.0 or later
Image Alchemyreads
PuriFilereads

Convert it

To	With	Fidelity	Command and losses
Portable Network Graphics	ImageMagick	Lossless	`convert in.miff out.png` Pixels kept; some metadata, colour profiles or layers may be dropped.
Tagged Image File Format	ImageMagick	Lossless	`convert in.miff out.tif` Pixels kept; some metadata, colour profiles or layers may be dropped.
GIF 89a	ImageMagick	Lossy	`convert in.miff out.gif` Reduced to 256 colours.
JPEG File Interchange Format 1.02	ImageMagick	Lossy	`convert in.miff out.jpg` Lossy compression.
WebP	ImageMagick	Lossy	`convert in.miff out.webp` Lossy compression.

Sources

From Converters (FFmpeg, ImageMagick, Pandoc, LibreOffice), Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-24.

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