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// http header · request header

Content-Type

Media type of the request body

What the Content-Type header does

Content-Type declares the media type of the message body so the other side knows how to parse it — application/json, text/html; charset=utf-8, multipart/form-data, and so on. It appears on both requests (describing the body you send) and responses (describing the body you get back). A wrong or missing value is a common cause of 400 and 415 errors.

Example

Content-Type: application/json

Where it's used

Content-Type is a request header. Request headers are sent by the client to describe the request and what the client can accept.

Other request headers

Accept Accept-Encoding Accept-Language Authorization Content-Type Content-Length Cookie Host Origin Referer User-Agent If-None-Match Range
TOOL

HTTP Headers Parser

Turn a block of raw headers into readable JSON.

REFERENCE

All HTTP Headers

Common request, response, caching, CORS, and security headers.

GUIDE

How to Read and Parse HTTP Headers

The anatomy of headers and how to work with them.