Common MIME Types

A lightweight TypeScript/JavaScript library for handling common web MIME types. The MIME type definitions are sourced from MDN Web Docs - Common MIME Types.

Features

• 🎯 Includes most commonly used MIME types on the web
• 🔄 Bidirectional conversion between file extensions and MIME types
• 📦 Lightweight with zero dependencies
• 💪 Written in TypeScript with full type support

Usage

import { mimeTypes, mime2ext, ext2mime, getType, getSubType } from 'common-mime-types'

// Convert MIME type to file extension
const ext = mime2ext('image/png') // Returns '.png'

// Convert file extension to MIME type
const mimeType = ext2mime('.png') // Returns 'image/png'

// Get the type part of a MIME type
const type = getType('image/png') // Returns 'image'

// Get the subtype part of a MIME type
const subType = getSubType('image/png') // Returns 'png'

// Search in mimeTypes array
mimeTypes.find((m) => m.mime === 'image/png')?.ext
mimeTypes.find((m) => m.ext === '.png')?.mime