Media Types

Last Updated

2026-09-16

Registration Procedure(s)

Expert Review for Vendor and Personal Trees. For Standards Tree, see [RFC 6838], Section 3.1.

Expert(s)

Alexey Melnikov, Darrel Miller, Murray Kucherawy

Reference

[RFC 6838][RFC 4855]

Note

[RFC 2046] specifies that Media Types (formerly known as MIME types) and Media
Subtypes will be assigned and listed by the IANA.

Procedures for registering Media Types can be found in [RFC 6838], [RFC 4289], 
and [RFC 6657]. Additional procedures for registering media types for transfer 
via Real-time Transport Protocol (RTP) can be found in [RFC 4855].

Per Section 3.1 of [RFC 6838], Standards Tree requests made through IETF
documents will be reviewed and approved by the IESG, while requests made by
other recognized standards organizations will be reviewed by the Designated
Expert in accordance with the Specification Required policy. IANA will verify
that this organization is recognized as a standards organization by the
IESG.

To request registration, please submit the form at the link below:

[https://www.iana.org/form/media-types]

Requests to update existing registrations should be sent to iana@iana.org.

Related registries:

Top-Level Media Types: [IANA registry top-level-media-types]
Provisional Standard Media Type Registry: [IANA registry provisional-standard-media-types]
Other Media Type Parameters: [IANA registry media-types-parameters]
Media Type Sub-Parameters: [IANA registry media-type-sub-parameters]

The following is the list of Directories of Content Types and Subtypes. 

Note

Some early registrations have no registration template. The absence of a 
template does not imply a different or reduced registration status.

Note

Per Section 12.5.1 of [RFC 9110], use of the "q" parameter name to control 
content negotiation would interfere with any media type parameter having the 
same name. Hence, the media type registry disallows parameters named "q".

Available Formats

XML
HTML
TXT

Registries Included Below

• application
• audio
• example
• font
• haptics
• image
• message
• model
• multipart
• text
• video

application

Available Formats

CSV