This is a database of all mime types. It consists of a single, public JSON file and does not include any logic, allowing it to remain as un-opinionated as possible with an API. It aggregates data from the following sources:
- http://www.iana.org/assignments/media-types/media-types.xhtml
- http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types
- http://hg.nginx.org/nginx/raw-file/default/conf/mime.types
npm install mime-dbIf you're crazy enough to use this in the browser, you can just grab the
JSON file using RawGit. It is recommended to replace
master with a release tag as the
JSON format may change in the future.
https://cdn.rawgit.com/jshttp/mime-db/master/db.json
var db = require('mime-db');
// grab data on .js files
var data = db['application/javascript'];
// grab mime types for extension
var type = db.extension['js'];The JSON file is a map lookup for lower-cased mime types. Each mime type has the following properties:
.source- where the mime type is defined. If not set, it's probably a custom media type.apache- Apache common media typesiana- IANA-defined media typesnginx- nginx media types
.extensions[]- known extensions associated with this mime type..compressible- whether a file of this type can be gzipped..charset- the default charset associated with this type, if any.
If unknown, every property could be undefined.
The JSON file is a map lookup for lower-cased file extensions. Each file extension is an array with the list of lower-cased mime types in order of preference.
To edit the database, only make PRs against src/custom.json or
src/custom-suffix.json.
To update the build, run npm run build.
The best way to get new media types included in this library is to register them with the IANA. The community registration procedure is outlined in RFC 6838 section 5. Types registered with the IANA are automatically pulled into this library.