Supported Image Formats

SnapOtter supports 55+ image formats for input and 14 formats for output.

Input Formats

Web Standards (9)

Format	Extensions	Decoder	Notes
JPEG	.jpg, .jpeg	Sharp (native)
PNG	.png	Sharp (native)	APNG first-frame extracted
WebP	.webp	Sharp (native)
GIF	.gif	Sharp (native)	Animated supported
AVIF	.avif	Sharp (native)
SVG	.svg	Sharp (librsvg)	Sanitized for XXE/SSRF
SVGZ	.svgz	gunzip + Sharp	Gzip bomb protection
APNG	.apng	Sharp (native)	First frame only
JPEG XL	.jxl	djxl / ImageMagick	Two-tier fallback

Professional (7)

Format	Extensions	Decoder	Notes
TIFF	.tiff, .tif	Sharp (native)	Multi-page supported
PSD	.psd	ImageMagick	Flattened composite
EPS	.eps, .epsf	ImageMagick + Ghostscript	300dpi rasterization, security hardened
OpenEXR	.exr	ImageMagick	Linear-to-sRGB conversion
Radiance HDR	.hdr	ImageMagick	Linear-to-sRGB conversion
DPX	.dpx	ImageMagick	Log-to-sRGB conversion
Cineon	.cin	ImageMagick	Film/VFX format

Camera RAW (23)

Format	Extensions	Camera Brand	Decoder
DNG	.dng	Adobe (universal)	exiftool / ImageMagick + LibRaw
CR2	.cr2	Canon (pre-2018)	exiftool / ImageMagick + LibRaw
CR3	.cr3	Canon (2018+)	exiftool / ImageMagick + LibRaw
NEF	.nef	Nikon	exiftool / ImageMagick + LibRaw
NRW	.nrw	Nikon (Coolpix)	exiftool / ImageMagick + LibRaw
ARW	.arw	Sony	exiftool / ImageMagick + LibRaw
ORF	.orf	Olympus	exiftool / ImageMagick + LibRaw
RW2	.rw2	Panasonic	exiftool / ImageMagick + LibRaw
RAF	.raf	Fujifilm	exiftool / ImageMagick + LibRaw
PEF	.pef	Pentax/Ricoh	exiftool / ImageMagick + LibRaw
3FR	.3fr	Hasselblad	exiftool / ImageMagick + LibRaw
IIQ	.iiq	Phase One	exiftool / ImageMagick + LibRaw
SRW	.srw	Samsung	exiftool / ImageMagick + LibRaw
X3F	.x3f	Sigma	exiftool / ImageMagick + LibRaw
RWL	.rwl	Leica	exiftool / ImageMagick + LibRaw
GPR	.gpr	GoPro	exiftool / ImageMagick + LibRaw
FFF	.fff	Hasselblad (legacy)	exiftool / ImageMagick + LibRaw
MRW	.mrw	Minolta	exiftool / ImageMagick + LibRaw
MEF	.mef	Mamiya	exiftool / ImageMagick + LibRaw
KDC	.kdc	Kodak	exiftool / ImageMagick + LibRaw
DCR	.dcr	Kodak	exiftool / ImageMagick + LibRaw
ERF	.erf	Epson	exiftool / ImageMagick + LibRaw
PTX	.ptx	Pentax (compact)	exiftool / ImageMagick + LibRaw

Modern Formats (3)

Format	Extensions	Decoder	Notes
JPEG 2000	.jp2, .j2k, .j2c, .jpc, .jpf, .jpx	opj_decompress / ImageMagick	Digital cinema, medical imaging
QOI	.qoi	Inline TypeScript codec	Game dev, embedded systems
HEIC/HEIF	.heic, .heif	heif-convert / heif-dec	iPhone photos

Legacy/System (4)

Format	Extensions	Decoder	Notes
BMP	.bmp	ImageMagick
ICO	.ico	ImageMagick	Largest layer extracted
CUR	.cur	ImageMagick	Windows cursor (ICO variant)
TGA	.tga	ImageMagick	Extension-only detection

Scientific and Gaming (2)

Format	Extensions	Decoder	Notes
FITS	.fits, .fit, .fts	ImageMagick	Astronomy (NASA standard)
DDS	.dds	ImageMagick	Game textures (DirectX)

Interchange (6)

Format	Extensions	Decoder	Notes
PPM	.ppm	Sharp (native)	Color pixmap
PGM	.pgm	Sharp (native)	Grayscale
PBM	.pbm	Sharp (native)	1-bit bitmap
PNM	.pnm	Sharp (native)	Umbrella format
PAM	.pam	Sharp (native)	Arbitrary map
PFM	.pfm	Sharp (native)	Float map

Output Formats (14)

Format	Encoder	Quality Control	Available In
JPEG	Sharp native	1-100	All tools
PNG	Sharp native	Compression 0-9	All tools
WebP	Sharp native	1-100	All tools
AVIF	Sharp native	1-100	All tools
TIFF	Sharp native	1-100	Full conversion tools
GIF	Sharp native	1-100	Full conversion tools
JXL	Sharp native	1-100	All tools
HEIC	heif-enc CLI	1-100	Full conversion tools
HEIF	heif-enc CLI	1-100	Full conversion tools
BMP	ImageMagick CLI	Lossless	Convert tool
ICO	ImageMagick CLI	Lossless	Convert tool
JP2	opj_compress CLI	Compression ratio	Convert tool
QOI	Inline codec	Lossless	Convert tool