custom-types.json

{
  "application/bdoc": {
    "compressible": false,
    "extensions": ["bdoc"],
    "notes": "Digital signature container",
    "sources": [
      "http://wpki.eu/wiki/upload/4/4f/BDoc-1.02.pdf",
      "http://www.id.ee/public/bdoc-spec21.pdf"
    ]
  },
  "application/dart": {
    "compressible": true
  },
  "application/dash+xml": {
    "extensions": ["mpd"],
    "sources": [
      "https://www.iana.org/assignments/media-types/application/dash+xml"
    ]
  },
  "application/ecmascript": {
    "compressible": true,
    "extensions": ["es"],
    "sources": [
      "http://tools.ietf.org/rfc/rfc4329.txt",
      "http://www.iana.org/assignments/media-types/application/ecmascript"
    ]
  },
  "application/edi-x12": {
    "compressible": false
  },
  "application/edifact": {
    "compressible": false
  },
  "application/fido.trusted-apps+json": {
    "sources": [
      "https://fidoalliance.org/specs/fido-u2f-v1.0-ps-20141009/fido-appid-and-facets-ps-20141009.html"
    ]
  },
  "application/font-woff": {
    "compressible": false,
    "notes": "File type is already a binary compressed format.",
    "sources": [
      "https://github.com/h5bp/server-configs-apache/issues/42"
    ]
  },
  "application/geo+json": {
    "extensions": ["geojson"],
    "sources": [
      "http://tools.ietf.org/rfc/rfc7946.txt",
      "http://www.iana.org/assignments/media-types/application/geo+json"
    ]
  },
  "application/gzip": {
    "compressible": false,
    "extensions": ["gz"],
    "sources": [
      "https://tools.ietf.org/html/rfc6713#section-3"
    ]
  },
  "application/hjson": {
    "extensions": ["hjson"],
    "sources": [
      "https://hjson.org/rfc.html#rfc.section.1.3"
    ]
  },
  "application/java-archive": {
    "compressible": false
  },
  "application/java-serialized-object": {
    "compressible": false
  },
  "application/java-vm": {
    "compressible": false
  },
  "application/javascript": {
    "charset": "UTF-8",
    "compressible": true,
    "extensions": ["mjs"],
    "sources": [
      "https://tools.ietf.org/html/draft-bfarias-javascript-mjs-00"
    ]
  },
  "application/json": {
    "charset": "UTF-8",
    "compressible": true,
    "extensions": ["map"]
  },
  "application/json5": {
    "extensions": ["json5"]
  },
  "application/ld+json": {
    "extensions": ["jsonld"]
  },
  "application/manifest+json": {
    "charset": "UTF-8",
    "compressible": true,
    "extensions": ["webmanifest"],
    "sources": [
      "http://w3c.github.io/manifest/#h-media-type-registration"
    ]
  },
  "application/mp4": {
    "extensions": ["m4p"]
  },
  "application/msword": {
    "compressible": false
  },
  "application/n-quads": {
    "extensions": ["nq"],
    "sources": [
      "https://www.iana.org/assignments/media-types/application/n-quads"
    ]
  },
  "application/n-triples": {
    "extensions": ["nt"],
    "sources": [
      "https://www.iana.org/assignments/media-types/application/n-triples"
    ]
  },
  "application/octet-stream": {
    "compressible": false,
    "extensions": ["buffer"],
    "sources": [
      "https://github.com/broofa/node-mime/blob/v1.2.11/types/mime.types#L154"
    ]
  },
  "application/ogg": {
    "compressible": false
  },
  "application/pdf": {
    "compressible": false
  },
  "application/pgp-encrypted": {
    "compressible": false
  },
  "application/postscript": {
    "compressible": true
  },
  "application/raml+yaml": {
    "compressible": true,
    "extensions": ["raml"],
    "sources": [
      "http://raml.org/spec.html"
    ]
  },
  "application/rdf+xml": {
    "compressible": true,
    "extensions": ["rdf","owl"],
    "notes": "OWL 1 recommends using '.rdf' or '.owl' as extensions under the 'application/rdf+xml' mime type",
    "sources": [
      "https://www.w3.org/TR/owl-ref/#MIMEType"
    ]
  },
  "application/rtf": {
    "compressible": true
  },
  "application/sieve": {
    "extensions": ["siv","sieve"],
    "sources": [
      "https://tools.ietf.org/rfc/rfc5228.txt",
      "https://www.iana.org/assignments/media-types/application/sieve"
    ]
  },
  "application/tar": {
    "compressible": true
  },
  "application/toml": {
    "extensions": ["toml"],
    "sources" : [
      "https://github.com/toml-lang/toml"
    ],
    "compressible": true
  },
  "application/vnd.android.package-archive": {
    "compressible": false
  },
  "application/vnd.apple.pkpass": {
    "compressible": false,
    "extensions": ["pkpass"],
    "sources": [
      "https://developer.apple.com/library/content/documentation/UserExperience/Conceptual/PassKit_PG/DistributingPasses.html"
    ]
  },
  "application/vnd.citationstyles.style+xml": {
    "extensions": ["csl"],
    "sources": [
      "https://www.iana.org/assignments/media-types/application/vnd.citationstyles.style+xml"
    ]
  },
  "application/vnd.dart": {
    "compressible": true
  },
  "application/vnd.google-apps.document": {
    "compressible": false,
    "extensions": ["gdoc"],
    "sources": [
      "https://developers.google.com/drive/v2/web/mime-types",
      "https://support.google.com/drive/answer/2374983?hl=en"
    ]
  },
  "application/vnd.google-apps.presentation": {
    "compressible": false,
    "extensions": ["gslides"],
    "sources": [
      "https://developers.google.com/drive/v2/web/mime-types",
      "https://support.google.com/drive/answer/2374983?hl=en"
    ]
  },
  "application/vnd.google-apps.spreadsheet": {
    "compressible": false,
    "extensions": ["gsheet"],
    "sources": [
      "https://developers.google.com/drive/v2/web/mime-types",
      "https://support.google.com/drive/answer/2374983?hl=en"
    ]
  },
  "application/vnd.google-earth.kmz": {
    "compressible": false
  },
  "application/vnd.ms-excel": {
    "compressible": false
  },
  "application/vnd.ms-fontobject": {
    "compressible": true,
    "sources": [
      "http://www.phpied.com/gzip-your-font-face-files/"
    ]
  },
  "application/vnd.ms-opentype": {
    "compressible": true,
    "sources": [
      "http://www.phpied.com/gzip-your-font-face-files/"
    ]
  },
  "application/vnd.ms-outlook": {
    "compressible": false,
    "extensions": ["msg"]
  },
  "application/vnd.ms-powerpoint": {
    "compressible": false
  },
  "application/vnd.ms-xpsdocument": {
    "compressible": false
  },
  "application/vnd.oasis.opendocument.graphics": {
    "compressible": false
  },
  "application/vnd.oasis.opendocument.presentation": {
    "compressible": false
  },
  "application/vnd.oasis.opendocument.spreadsheet": {
    "compressible": false
  },
  "application/vnd.oasis.opendocument.text": {
    "compressible": false,
    "sources": [
      "http://en.wikipedia.org/wiki/OpenDocument_technical_specification#File_types"
    ]
  },
  "application/vnd.openxmlformats-officedocument.presentationml.presentation": {
    "compressible": false
  },
  "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet": {
    "compressible": false
  },
  "application/vnd.openxmlformats-officedocument.wordprocessingml.document": {
    "compressible": false
  },
  "application/vnd.sun.wadl+xml": {
    "extensions": ["wadl"],
    "sources": [
      "http://www.iana.org/assignments/media-types/application/vnd.sun.wadl+xml"
    ]
  },
  "application/wasm": {
    "compressible": true,
    "extensions": ["wasm"],
    "notes": "WebAssembly module",
    "sources": [
      "https://webassembly.github.io/spec/core/binary/conventions.html"
    ]
  },
  "application/x-7z-compressed": {
    "compressible": false
  },
  "application/x-arj": {
    "compressible": false,
    "extensions": ["arj"],
    "notes": "No registered type, so using type from Linux file(1)",
    "sources": [
      "https://github.com/file/file/blob/daaf6d44768677aca17af780bba0a451fbb69ac8/magic/Magdir/archive"
    ]
  },
  "application/x-bdoc": {
    "compressible": false,
    "extensions": ["bdoc"],
    "notes": "Digital signature container",
    "sources": [
      "http://wpki.eu/wiki/upload/4/4f/BDoc-1.02.pdf",
      "http://www.id.ee/public/bdoc-spec21.pdf"
    ]
  },
  "application/x-bzip": {
    "compressible": false
  },
  "application/x-bzip2": {
    "compressible": false
  },
  "application/x-chrome-extension": {
    "extensions": ["crx"]
  },
  "application/x-deb": {
    "compressible": false
  },
  "application/x-dvi": {
    "compressible": false
  },
  "application/x-httpd-php": {
    "compressible": true,
    "extensions": ["php"],
    "sources": [
      "http://php.net/manual/en/faq.installation.php"
    ]
  },
  "application/x-java-jnlp-file": {
    "compressible": false
  },
  "application/x-javascript": {
    "compressible": true
  },
  "application/x-keepass2": {
    "extensions": ["kdbx"],
    "sources": [
      "https://github.com/keepassx/keepassx/blob/master/share/linux/keepassx.xml"
    ]
  },
  "application/x-latex": {
    "compressible": false
  },
  "application/x-lua-bytecode": {
    "extensions": ["luac"]
  },
  "application/x-mpegurl": {
    "compressible": false
  },
  "application/x-msdos-program": {
    "extensions": ["exe"],
    "sources": [
      "https://bugzilla.mozilla.org/show_bug.cgi?id=250938"
    ]
  },
  "application/x-ns-proxy-autoconfig": {
    "compressible": true,
    "extensions": ["pac"],
    "sources": [
      "https://web.archive.org/web/20070602031929/http://wp.netscape.com/eng/mozilla/2.0/relnotes/demo/proxy-live.html",
      "https://en.wikipedia.org/wiki/Proxy_auto-config#The_PAC_File"
    ]
  },
  "application/x-pkcs12": {
    "compressible": false
  },
  "application/x-rar-compressed": {
    "compressible": false
  },
  "application/x-sh": {
    "compressible": true
  },
  "application/x-shockwave-flash": {
    "compressible": false
  },
  "application/x-stuffit": {
    "compressible": false
  },
  "application/x-tar": {
    "compressible": true
  },
  "application/x-virtualbox-hdd": {
    "compressible": true,
    "extensions": ["hdd"],
    "notes": "Parallels Hard Disk Image",
    "sources": [
      "https://www.virtualbox.org/svn/vbox/trunk/src/VBox/Installer/solaris/virtualbox.keys",
      "https://github.com/VirtualMonitor/VirtualMonitor/blob/master/src/VBox/Installer/common/virtualbox.xml"
    ]
  },
  "application/x-virtualbox-ova": {
    "compressible": true,
    "extensions": ["ova"],
    "notes": "Open Virtualization Format (OVF) Archive",
    "sources": [
      "https://www.virtualbox.org/svn/vbox/trunk/src/VBox/Installer/solaris/virtualbox.keys",
      "https://github.com/VirtualMonitor/VirtualMonitor/blob/master/src/VBox/Installer/common/virtualbox.xml"
    ]
  },
  "application/x-virtualbox-ovf": {
    "compressible": true,
    "extensions": ["ovf"],
    "notes": "Open Virtualization Format (OVF) Image",
    "sources": [
      "https://www.virtualbox.org/svn/vbox/trunk/src/VBox/Installer/solaris/virtualbox.keys",
      "https://github.com/VirtualMonitor/VirtualMonitor/blob/master/src/VBox/Installer/common/virtualbox.xml"
    ]
  },
  "application/x-virtualbox-vbox": {
    "compressible": true,
    "extensions": ["vbox"],
    "notes": "VirtualBox Settings File",
    "sources": [
      "https://www.virtualbox.org/svn/vbox/trunk/src/VBox/Installer/solaris/virtualbox.keys",
      "https://github.com/VirtualMonitor/VirtualMonitor/blob/master/src/VBox/Installer/common/virtualbox.xml"
    ]
  },
  "application/x-virtualbox-vbox-extpack": {
    "compressible": false,
    "extensions": ["vbox-extpack"],
    "notes": "VirtualBox Extension Pack",
    "sources": [
      "https://www.virtualbox.org/svn/vbox/trunk/src/VBox/Installer/solaris/virtualbox.keys",
      "https://github.com/VirtualMonitor/VirtualMonitor/blob/master/src/VBox/Installer/common/virtualbox.xml"
    ]
  },
  "application/x-virtualbox-vdi": {
    "compressible": true,
    "extensions": ["vdi"],
    "notes": "VirtualBox Disk Image",
    "sources": [
      "https://www.virtualbox.org/svn/vbox/trunk/src/VBox/Installer/solaris/virtualbox.keys",
      "https://github.com/VirtualMonitor/VirtualMonitor/blob/master/src/VBox/Installer/common/virtualbox.xml"
    ]
  },
  "application/x-virtualbox-vhd": {
    "compressible": true,
    "extensions": ["vhd"],
    "notes": "Microsoft Virtual Hard Disk",
    "sources": [
      "https://www.virtualbox.org/svn/vbox/trunk/src/VBox/Installer/solaris/virtualbox.keys",
      "https://github.com/VirtualMonitor/VirtualMonitor/blob/master/src/VBox/Installer/common/virtualbox.xml"
    ]
  },
  "application/x-virtualbox-vmdk": {
    "compressible": true,
    "extensions": ["vmdk"],
    "notes": "VMWare Virtual Machine Disk",
    "sources": [
      "https://www.virtualbox.org/svn/vbox/trunk/src/VBox/Installer/solaris/virtualbox.keys",
      "https://github.com/VirtualMonitor/VirtualMonitor/blob/master/src/VBox/Installer/common/virtualbox.xml"
    ]
  },
  "application/x-web-app-manifest+json": {
    "extensions": ["webapp"]
  },
  "application/x-www-form-urlencoded": {
    "compressible": true
  },
  "application/x-xpinstall": {
    "compressible": false
  },
  "application/xml": {
    "compressible": true,
    "extensions": ["xsd","rng"],
    "sources": [
      "http://en.wikipedia.org/wiki/RELAX_NG"
    ]
  },
  "application/xml-dtd": {
    "compressible": true,
    "sources": [
      "http://en.wikipedia.org/wiki/Document_type_definition"
    ]
  },
  "application/zip": {
    "compressible": false
  },
  "audio/3gpp": {
    "compressible": false,
    "extensions": ["3gpp"]
  },
  "audio/basic": {
    "compressible": false
  },
  "audio/l24": {
    "compressible": false
  },
  "audio/mobile-xmf": {
    "extensions": ["mxmf"],
    "sources": [
      "http://tools.ietf.org/rfc/rfc4723.txt",
      "http://www.iana.org/assignments/media-types/audio/mobile-xmf"
    ]
  },
  "audio/mp3": {
    "compressible": false,
    "extensions": ["mp3"],
    "notes": "Chromium sends this mimetype instead of audio/mpeg for mp3 files",
    "sources": [
      "https://bugs.chromium.org/p/chromium/issues/detail?id=227004"
    ]
  },
  "audio/mp4": {
    "compressible": false
  },
  "audio/mpeg": {
    "compressible": false
  },
  "audio/ogg": {
    "compressible": false
  },
  "audio/vnd.rn-realaudio": {
    "compressible": false
  },
  "audio/vnd.wave": {
    "compressible": false
  },
  "audio/vorbis": {
    "compressible": false
  },
  "audio/wav": {
    "compressible": false,
    "extensions": ["wav"]
  },
  "audio/wave": {
    "compressible": false,
    "extensions": ["wav"]
  },
  "audio/webm": {
    "compressible": false
  },
  "audio/x-aac": {
    "compressible": false
  },
  "audio/x-caf": {
    "compressible": false
  },
  "font/otf": {
    "compressible": true,
    "sources": [
      "https://www.iana.org/assignments/media-types/font/otf",
      "http://www.phpied.com/gzip-your-font-face-files/"
    ]
  },
  "font/ttf": {
    "compressible": true,
    "sources": [
      "https://www.iana.org/assignments/media-types/font/ttf",
      "http://www.phpied.com/gzip-your-font-face-files/"
    ]
  },
  "image/apng": {
    "compressible": false,
    "extensions": ["apng"],
    "sources": [
      "https://wiki.mozilla.org/APNG_Specification",
      "https://en.wikipedia.org/wiki/APNG"
    ]
  },
  "image/bmp": {
    "compressible": true,
    "sources": [
      "http://stackoverflow.com/a/12770116"
    ]
  },
  "image/gif": {
    "compressible": false
  },
  "image/heic": {
    "extensions": ["heic"],
    "sources": [
      "https://www.iana.org/assignments/media-types/image/heic",
      "http://nokiatech.github.io/heif/technical.html"
    ]
  },
  "image/heic-sequence": {
    "extensions": ["heics"],
    "sources": [
      "https://www.iana.org/assignments/media-types/image/heic-sequence",
      "http://nokiatech.github.io/heif/technical.html"
    ]
  },
  "image/heif": {
    "extensions": ["heif"],
    "sources": [
      "https://www.iana.org/assignments/media-types/image/heif",
      "http://nokiatech.github.io/heif/technical.html"
    ]
  },
  "image/heif-sequence": {
    "extensions": ["heifs"],
    "sources": [
      "https://www.iana.org/assignments/media-types/image/heif-sequence",
      "http://nokiatech.github.io/heif/technical.html"
    ]
  },
  "image/jp2": {
    "compressible": false,
    "extensions": ["jp2","jpg2"],
    "sources": [
      "https://www.iana.org/assignments/media-types/image/jp2",
      "https://tools.ietf.org/html/rfc3745"
    ]
  },
  "image/jpeg": {
    "compressible": false
  },
  "image/jpm": {
    "compressible": false,
    "extensions": ["jpm"],
    "sources": [
      "https://www.iana.org/assignments/media-types/image/jpm",
      "https://tools.ietf.org/html/rfc3745"
    ]
  },
  "image/jpx": {
    "compressible": false,
    "extensions": ["jpx","jpf"],
    "sources": [
      "https://www.iana.org/assignments/media-types/image/jpx",
      "https://tools.ietf.org/html/rfc3745"
    ]
  },
  "image/pjpeg": {
    "compressible": false
  },
  "image/png": {
    "compressible": false
  },
  "image/tiff": {
    "compressible": false,
    "notes": "Gains insignificant in testing.",
    "sources": [
      "http://stackoverflow.com/a/12770116"
    ]
  },
  "image/vnd.adobe.photoshop": {
    "compressible": true
  },
  "image/vnd.ms-dds" : {
    "extensions": ["dds"],
    "notes": "Microsoft format for storing graphical textures and cubemaps. Used in 3d engines, such as Babylon.js.",
    "sources": [
      "https://docs.microsoft.com/en-us/windows/win32/wic/dds-format-overview"
    ]
  },
  "image/x-icon": {
    "compressible": true,
    "notes": "Usually a wrapper for .bmp formated images.",
    "sources": [
      "http://en.wikipedia.org/wiki/ICO_(file_format)"
    ]
  },
  "image/x-ms-bmp": {
    "compressible": true,
    "sources": [
      "http://stackoverflow.com/a/12770116"
    ]
  },
  "image/x-xcf": {
    "compressible": false
  },
  "message/http": {
    "compressible": false,
    "notes": "It is safest to leave these uncompressed.",
    "sources": [
      "http://stackoverflow.com/a/1450163"
    ]
  },
  "message/partial": {
    "compressible": false
  },
  "message/rfc822": {
    "compressible": true,
    "sources": [
      "http://en.wikipedia.org/wiki/MIME#Multipart_subtypes"
    ]
  },
  "model/gltf-binary": {
    "compressible": true
  },
  "model/iges": {
    "compressible": false
  },
  "model/mesh": {
    "compressible": false
  },
  "model/vrml": {
    "compressible": false
  },
  "model/x3d+binary": {
    "compressible": false
  },
  "model/x3d+vrml": {
    "compressible": false
  },
  "multipart/alternative": {
    "compressible": false
  },
  "multipart/encrypted": {
    "compressible": false
  },
  "multipart/form-data": {
    "compressible": false
  },
  "multipart/related": {
    "compressible": false
  },
  "multipart/signed": {
    "compressible": false
  },
  "text/cache-manifest": {
    "compressible": true,
    "extensions": ["manifest"],
    "notes": "I think so.",
    "sources": [
      "https://bugzilla.mozilla.org/show_bug.cgi?id=715191#c2"
    ]
  },
  "text/calender": {
    "compressible": true,
    "notes": "Probably needs to be uncompressed before sent to iCalender.",
    "sources": [
      "http://en.wikipedia.org/wiki/ICalendar"
    ]
  },
  "text/cmd": {
    "compressible": true
  },
  "text/coffeescript": {
    "extensions": ["coffee","litcoffee"]
  },
  "text/css": {
    "charset": "UTF-8",
    "compressible": true,
    "sources": [
      "https://www.w3.org/TR/CSS22/syndata.html#charset"
    ]
  },
  "text/csv": {
    "compressible": true
  },
  "text/html": {
    "compressible": true
  },
  "text/jade": {
    "extensions": ["jade"]
  },
  "text/javascript": {
    "compressible": true
  },
  "text/jsx": {
    "compressible": true,
    "extensions": ["jsx"],
    "sources": [
      "http://facebook.github.io/react/docs/getting-started.html"
    ]
  },
  "text/less": {
    "compressible": true,
    "extensions": ["less"]
  },
  "text/markdown": {
    "compressible": true,
    "extensions": ["markdown","md"],
    "sources": [
      "https://tools.ietf.org/html/rfc7763"
    ]
  },
  "text/mdx": {
    "compressible": true,
    "extensions": ["mdx"],
    "notes": "JSX in Markdown",
    "sources": [
      "https://github.com/mdx-js/specification"
    ]
  },
  "text/n3": {
    "compressible": true,
    "sources": [
      "http://en.wikipedia.org/wiki/Notation3"
    ]
  },
  "text/plain": {
    "compressible": true,
    "extensions": ["ini"]
  },
  "text/richtext": {
    "compressible": true
  },
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