image/*

image/png

File extensions: .png

Lossless raster format — the web default for graphics with transparency.

What is image/png?

image/png is the media type for Portable Network Graphics — a lossless raster format with alpha transparency, supported by every browser. PNG is the go-to format for UI graphics, screenshots, and logos where fidelity matters more than file size.

Typical usage

Icons, logos, screenshots, UI graphics, anywhere transparency is needed.

Common gotchas

For photographs, WebP or AVIF produce dramatically smaller files. Use PNG for graphics, not photos.

HTTP header example

Response header

Content-Type: image/png

Reference

RFC 2083

Related MIME types

image/webp

WebP

image/jpeg

JPEG

image/avif

AVIF

image/gif

GIF

image/svg+xml

SVG

image/x-icon

ICO (favicon)