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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
JXSI
JPEG XS Image (HEIF Container)
Professional & Video Production
 image/jxsi
Transparency
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
JXSS
JPEG XS Image Sequence (HEIF Container)
Professional & Video Production
 image/jxss
Transparency
Animation
Progressive loading — not supported
Chrome Firefox Safari Edge
KTX
Khronos Texture
3D & Textures
 image/ktx
Transparency
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
KTX2
Khronos Texture 2.0
3D & Textures
 image/ktx2
Transparency
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
NAP
North American Presentation Level Protocol Syntax
Legacy & Videotex
 image/naplps
Transparency — not supported
Animation
Progressive loading
Chrome Firefox Safari Edge
PICT
Apple PICT Image
Legacy & Metafiles
 image/pict
Transparency
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
JPEG
Progressive JPEG (Legacy IE Alias)
Legacy & Web
 image/pjpeg
Transparency — not supported
Animation — not supported
Progressive loading
Chrome Firefox Safari Edge
PNG
Portable Network Graphics
Web
 image/png
Transparency
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
AIMG
Universal AI Media Format (Image)
Metafiles & AI Provenance
 image/prs.aimg
Transparency
Animation
Progressive loading — not supported
Chrome Firefox Safari Edge
BTIF
Bank Telecommunications Image Format
Legacy & Archival
 image/prs.btif
Transparency — not supported
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
PTI
PTI Image (Personal/Vanity Tree)
Legacy & Archival
 image/prs.pti
Transparency — not supported
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
PWG
PWG Raster Format
Printing & Imaging
 image/pwg-raster
Transparency — not supported
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
RGB
Silicon Graphics Image
Legacy & 3D Graphics
 image/rgb
Transparency
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
SGI
Silicon Graphics Image
Legacy & 3D Graphics
 image/sgi
Transparency
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
SVG
Scalable Vector Graphics
Web & Graphics
 image/svg+xml
Transparency
Animation
Progressive loading — not supported
Chrome Firefox Safari Edge
T38
T.38 Fax over IP (FoIP)
Telecommunications & Fax
 image/t38
Transparency — not supported
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
TGA
Truevision TGA (TARGA)
3D & Textures
 image/targa
Transparency
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
TIFF
TIFF for Facsimile eXtended
Telecommunications & Fax
 image/tiff-fx
Transparency — not supported
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
TIFF
Tagged Image File Format
Photography & Archival
 image/tiff
Transparency
Animation — not supported
Progressive loading — not supported
Chrome Firefox Safari Edge
PSD
Adobe Photoshop Document
Graphics & Layered Images
 image/vnd.adobe.photoshop
Transparency
Animation
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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