Technical MIME Specification & Web Server Guide

application/json

Technical overview, official IANA specification, header magic bytes, and server configuration snippets for .JSON files (JavaScript Object Notation).

File Extension

.json

Content-Type Header

application/json

Format Category

Code & Web

Standard Specification

RFC 8259

Description & Usage

Lightweight text-based data interchange format widely used in REST APIs.

HTTP Server Content-Type Configuration Code

# Nginx mime.types configuration for .json
types {
    application/json    json;
}

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.

Preguntas frecuentes

Respuestas claras a las preguntas más habituales.

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