The following 85 Media Type values (84 distinct values) were found in all available webconcepts.info specifications. Please be advised that the table shown here is maintained and compiled from Web Concepts sources. The official Media Type registry is maintained by the Internet Assigned Numbers Authority (IANA).

Media Type Specification
application/activity+json W3C TR http://www.w3.org/TR/activitystreams-core: Activity Streams 2.0
application/alps+json Internet Draft amundsen-richardson-foster-alps: Application-Level Profile Semantics (ALPS)
application/alps+xml Internet Draft amundsen-richardson-foster-alps: Application-Level Profile Semantics (ALPS)
application/atom+xml RFC 4287: Atom Syndication Format
application/atomcat+xml RFC 5023: Atom Publishing Protocol (AtomPub)
application/atomdeleted+xml RFC 6271: The Atom “deleted-entry” Element
application/atomsvc+xml RFC 5023: Atom Publishing Protocol (AtomPub)
application/cbor RFC 7049: Concise Binary Object Representation (CBOR)
application/coap-group+json RFC 7390: Group Communication for the Constrained Application Protocol (CoAP)
application/coap-payload Internet Draft ietf-core-http-mapping: Guidelines for HTTP-to-CoAP Mapping Implementations
application/csrattrs RFC 7030: Enrollment over Secure Transport
application/dash+xml ISO/IEC 23009: Information technology — Dynamic adaptive streaming over HTTP (DASH) — Part 1: Media presentation description and segment formats
application/exi W3C TR http://www.w3.org/TR/exi: Efficient XML Interchange (EXI) Format 1.0
application/font-sfnt ISO/IEC 14496: Information technology — Coding of audio-visual objects — Part 22: Open Font Format
application/geo+json RFC 7946: The GeoJSON Format
application/geo+json-seq RFC 8142: GeoJSON Text Sequences
application/gzip RFC 6713: The ‘application/zlib’ and ‘application/gzip’ Media Types
application/hal+json Internet Draft kelly-json-hal: JSON Hypertext Application Language
application/held+xml RFC 5985: HTTP-Enabled Location Delivery (HELD)
application/home+json Internet Draft nottingham-json-home: Home Documents for HTTP APIs
application/home+xml Internet Draft wilde-home-xml: Home Documents for HTTP Services: XML Syntax
application/http RFC 7230: Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and Routing
application/jose RFC 7515: JSON Web Signature (JWS)
application/jose+json RFC 7515: JSON Web Signature (JWS)
application/jrd+json RFC 7033: WebFinger
application/json RFC 7159: JavaScript Object Notation (JSON)
Internet Draft ietf-jsonbis-rfc7159bis: The JavaScript Object Notation (JSON) Data Interchange Format
application/json-seq RFC 7464: JavaScript Object Notation (JSON) Text Sequences
application/jwk+json RFC 7517: JSON Web Key (JWK)
application/jwk-set+json RFC 7517: JSON Web Key (JWK)
application/jwt RFC 7519: JSON Web Token (JWT)
application/ld+json W3C TR http://www.w3.org/TR/json-ld: JSON-LD 1.0
application/link-format RFC 6690: Constrained RESTful Environments (CoRE) Link Format
application/link-format+cbor Internet Draft ietf-core-links-json: Representing CoRE Formats in JSON and CBOR
application/link-format+json Internet Draft ietf-core-links-json: Representing CoRE Formats in JSON and CBOR
application/mads+xml RFC 6207: The Media Types application/mods+xml, application/mads+xml, application/mets+xml, application/marcxml+xml, and application/sru+xml
application/manifest+json W3C TR http://www.w3.org/TR/appmanifest: Manifest for Web Application
application/marc RFC 2220: The Application/MARC Content-type
application/marcxml+xml RFC 6207: The Media Types application/mods+xml, application/mads+xml, application/mets+xml, application/marcxml+xml, and application/sru+xml
application/mets+xml RFC 6207: The Media Types application/mods+xml, application/mads+xml, application/mets+xml, application/marcxml+xml, and application/sru+xml
application/mods+xml RFC 6207: The Media Types application/mods+xml, application/mads+xml, application/mets+xml, application/marcxml+xml, and application/sru+xml
application/nlsml+xml RFC 6768: Media Resource Control Protocol Version 2 (MRCPv2)
application/p2p-overlay+xml RFC 6940: REsource LOcation And Discovery (RELOAD) Base Protocol
application/patch-ops-error+xml RFC 5261: An Extensible Markup Language (XML) Patch Operations Framework Utilizing XML Path Language (XPath) Selectors
application/pdf RFC 8118: The application/pdf Media Type
application/powder+xml W3C TR http://www.w3.org/TR/powder-dr: Protocol for Web Description Resources (POWDER): Description Resources
application/powder-s+xml W3C TR http://www.w3.org/TR/powder-dr: Protocol for Web Description Resources (POWDER): Description Resources
application/problem+json RFC 7807: Problem Details for HTTP APIs
application/problem+xml RFC 7807: Problem Details for HTTP APIs
application/rdf+xml RFC 3870: application/rdf+xml Media Type Registration
application/rfc+xml Internet Draft hoffman-xml2rfc: The ‘XML2RFC’ version 3 Vocabulary
application/samlassertion+xml OASIS Standard saml-bindings-2.0-os: Bindings for the OASIS Security Assertion Markup Language (SAML) V2.0
application/samlmetadata+xml OASIS Standard saml-metadata-2.0-os: Metadata for the OASIS Security Assertion Markup Language (SAML) V2.0
application/sgml RFC 1874: SGML Media Types
application/soap+xml RFC 3902: The “application/soap+xml” Media Type
application/sql RFC 6922: The application/sql Media Type
application/sru+xml RFC 6207: The Media Types application/mods+xml, application/mads+xml, application/mets+xml, application/marcxml+xml, and application/sru+xml
application/trig W3C TR http://www.w3.org/TR/trig: TriG
application/vcard+xml RFC 6351: xCard: vCard XML Representation
application/xliff+xml OASIS Standard xliff-core-v2.1: XLIFF Version 2.1
application/xml RFC 7303: XML Media Types
application/xml-dtd RFC 7303: XML Media Types
application/xml-external-parsed-entity RFC 7303: XML Media Types
application/xml-patch+xml RFC 7351: A Media Type for XML Patch Operations
application/zlib RFC 6713: The ‘application/zlib’ and ‘application/gzip’ Media Types
font/collection RFC 8081: The “font” Top-Level Media Type
font/otf RFC 8081: The “font” Top-Level Media Type
font/sfnt RFC 8081: The “font” Top-Level Media Type
font/ttf RFC 8081: The “font” Top-Level Media Type
font/woff RFC 8081: The “font” Top-Level Media Type
font/woff2 RFC 8081: The “font” Top-Level Media Type
image/jpeg ISO/IEC 10918: Information technology — Digital compression and coding of continuous-tone still images: JPEG File Interchange Format (JFIF)
image/png W3C TR http://www.w3.org/TR/PNG: Portable Network Graphics
message/http RFC 7230: Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and Routing
multipart/form-data RFC 2388: Returning Values from Forms: multipart/form-data
text/event-stream W3C TR http://www.w3.org/TR/eventsource: Server-Sent Events
text/grammar-ref-list RFC 6768: Media Resource Control Protocol Version 2 (MRCPv2)
text/html W3C TR http://www.w3.org/TR/html4: Hypertext Markup Language (HTML)
text/markdown RFC 7763: The text/markdown Media Type
text/plain RFC 5174: URI Fragment Identifiers for the text/plain Media Type
text/sgml RFC 1874: SGML Media Types
text/vcard RFC 6350: vCard Format Specification
text/vtt W3C TR http://www.w3.org/TR/webvtt: Web Video Text Tracks (WebVTT)
text/xml RFC 3023: XML Media Types
text/xml-external-parsed-entity RFC 3023: XML Media Types



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