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Developer Reference

Image MIME Type Reference

The definitive index of image file formats — MIME types, magic bytes, browser compatibility, compression modes, and developer code snippets. Bookmark this and never look it up again.

156
Image formats
5
Browsers tracked
4
Code languages
Free API
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Format MIME Type Features Browsers
JXR
JPEG XR (HD Photo)
Photography & High Dynamic Range
 image/vnd.ms-photo
Transparency
Animation — not supported
Progressive loading
Chrome Firefox Safari Edge
FPX
Network FlashPix
Legacy & Network Streaming
 image/vnd.net-fpx
Transparency
Animation — not supported
Progressive loading
Chrome Firefox Safari Edge
B16
PCO B16 Image
Scientific & Raw Imaging
 image/vnd.pco.b16
Transparency — not supported
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
HDR
Radiance HDR
3D Graphics & HDR Imaging
 image/vnd.radiance
Transparency — not supported
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
REALFLASH
RealNetworks RealFlash
Legacy & Streaming
 image/vnd.rn-realflash
Transparency
Animation
Progressive loading
Chrome Firefox Safari Edge
RP
RealNetworks RealPix
Legacy & Streaming
 image/vnd.rn-realpix
Transparency
Animation
Progressive loading
Chrome Firefox Safari Edge
SPNG
SealedMedia Portable Network Graphics
Security & DRM
 image/vnd.sealed.png
Transparency — not supported
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
SGIF
SealedMedia SoftSeal GIF
Security & DRM
 image/vnd.sealedmedia.softseal.gif
Transparency — not supported
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
SJPG
SealedMedia SoftSeal JPEG
Security & DRM
 image/vnd.sealedmedia.softseal.jpg
Transparency — not supported
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
SLD
AutoCAD Slide
CAD & Legacy Vectors
 image/vnd.sld
Transparency — not supported
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
SVF
Simple Vector Format
CAD & Legacy Vectors
 image/vnd.svf
Transparency
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
TAP
Tencent TAP Image
Legacy & Proprietary
 image/vnd.tencent.tap
Transparency — not supported
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
VTF
Valve Texture Format
3D Graphics & Gaming
 image/vnd.valve.source.texture
Transparency
Animation
Progressive loading — not supported
Chrome Firefox Safari Edge
WBMP
Wireless Bitmap
Legacy & Mobile
 image/vnd.wap.wbmp
Transparency — not supported
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
XIF
Extended Image File Format
Legacy & Proprietary
 image/vnd.xiff
Transparency — not supported
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
PCX
Pixologic ZBrush PCX
3D Graphics & Gaming
 image/vnd.zbrush.pcx
Transparency — not supported
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
WEBP
WebP Image
Web
 image/webp
Transparency
Animation
Progressive loading — not supported
Chrome Firefox Safari Edge
WMF
Windows Metafile
Vector Graphics & Legacy
 image/wmf
Transparency
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
3DS
Autodesk 3D Studio
3D Graphics & Modeling
 image/x-3ds
Transparency
Animation
Progressive loading — not supported
Chrome Firefox Safari Edge
DNG
Adobe Digital Negative
Photography & Raw Imaging
 image/x-adobe-dng
Transparency
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
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Free JSON API

Use this data in your project

Every format's full specification is available as a free, open JSON endpoint. No authentication, no rate limits for reasonable use.

Example endpoints
GET /mime/image/webp.json
GET /mime/image/jpeg.json
GET /mime/image/png.json

Why developers reference this page

Magic bytes for file detection
Exact hex signatures to detect image formats without relying on file extensions.
Browser compatibility matrix
Exact minimum browser versions for each format, including legacy IE coverage.
Copy-paste code snippets
MIME detection in Python, Node.js, Go, and PHP. One click to copy.
Embeddable badge & widget
Add a live spec card or SVG badge to your README or documentation.
Side-by-side comparisons
Compare any two formats on compression, features, and support in one view.
Open JSON API
All spec data is machine-readable. Pull it into your own tools and docs.
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