Technical MIME Specification & Web Server Guide

image/png

Technical overview, official IANA specification, header magic bytes, and server configuration snippets for .PNG files (Portable Network Graphics).

File Extension

.png

Content-Type Header

image/png

Format Category

Images

Standard Specification

RFC 2083 / W3C PNG

Description & Usage

Lossless image format supporting full alpha channel transparency.

HTTP Server Content-Type Configuration Code

# Nginx mime.types configuration for .png
types {
    image/png    png;
}

OS Compatibility Matrix

Windows

macOS

Linux

Android

iOS

Want to test header signatures or binary files?

Run binary magic byte inspection in Magic Byte Detector.

Frequently Asked Questions

The official MIME content type for .png files is "image/png". Web servers use this header to instruct browsers how to render or process .png data.