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The mime-db package is a comprehensive database of MIME types based on the mime-types npm package. It provides an API to access MIME type definitions, which are compiled from various sources. It is often used to look up MIME types based on file extensions or vice versa.
Lookup MIME type for a given file extension
This feature allows you to get the MIME type for a specific file extension. In the code sample, we are looking up the MIME type for JSON files.
const mimeDb = require('mime-db');
const mimeType = mimeDb['json'].type;
Get extensions for a given MIME type
This feature enables you to retrieve the file extensions associated with a particular MIME type. In the code sample, we are getting the extensions for 'application/json'.
const mimeDb = require('mime-db');
const extensions = mimeDb['application/json'].extensions;
Access MIME type data
This feature provides access to the data associated with a specific MIME type, including the source of the information, charset, and whether it's compressible. The code sample demonstrates how to access the data for 'application/json'.
const mimeDb = require('mime-db');
const mimeData = mimeDb['application/json'];
The mime-types package is a lightweight version of mime-db that provides utility functions to work with MIME types, such as looking up MIME types and extensions. It is built on top of mime-db and offers a simpler API for common use cases.
The mime package is another popular alternative that allows users to look up MIME types based on file extensions and vice versa. It offers a more limited dataset compared to mime-db but includes a simple API for the most common MIME type operations.
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:
npm install mime-db
If you're crazy enough to use this in the browser, you can just grab the JSON file:
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'];
The JSON file is a map lookup for lowercased 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 types.extensions[]
- known extensions associated with this mime type..compressible
- whether a file of this type is can be gzipped..charset
- the default charset associated with this type, if any.If unknown, every property could be undefined
.
To edit the database, only make PRs against src/custom.json
or
src/custom-suffix.json
.
To update the build, run npm run update
.
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.
FAQs
Media Type Database
The npm package mime-db receives a total of 48,654,555 weekly downloads. As such, mime-db popularity was classified as popular.
We found that mime-db demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 2 open source maintainers collaborating on the project.
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