ART image format

Writable

image

ART is a proprietary image file format used primarily by America Online (AOL) service software.

Identify it

Extensions	`.art`
Signatures	`4a47` at byte 0 (ART aol)
PRONOM	`fmt/666`
Wikidata	`Q296924`

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Open it

ImageMagickOpen sourcereads and writes · ImageMagick License
ConverseenOpen sourcereads · GNU General Public License, version 3.0
ACD FotoCanvas Litereads
ACDSee 5reads

Convert it

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