MIME Type Lookup

Find the MIME type (Content-Type) for any file extension.

What is a MIME Type?

MIME (Multipurpose Internet Mail Extensions) types indicate the nature and format of a document, file, or assortment of bytes. They are used by web servers to tell browsers what type of content is being served, so the browser can handle it appropriately.

MIME Type Structure

MIME types consist of a type and subtype, separated by a slash:

type/subtype

Examples:

text/html - HTML documents
image/jpeg - JPEG images
application/json - JSON data
video/mp4 - MP4 videos

Common MIME Type Categories

Images

Extension	MIME Type	Description
`.jpg`	`image/jpeg`	JPEG Image
`.png`	`image/png`	PNG Image
`.gif`	`image/gif`	GIF Image
`.webp`	`image/webp`	WebP Image
`.svg`	`image/svg+xml`	SVG Vector
`.ico`	`image/x-icon`	Icon
`.bmp`	`image/bmp`	Bitmap Image
`.avif`	`image/avif`	AVIF Image

Documents

Extension	MIME Type	Description
`.pdf`	`application/pdf`	PDF Document
`.doc`	`application/msword`	Word Document
`.docx`	`application/vnd.openxmlformats-officedocument.wordprocessingml.document`	Word Document
`.xls`	`application/vnd.ms-excel`	Excel Spreadsheet
`.xlsx`	`application/vnd.openxmlformats-officedocument.spreadsheetml.sheet`	Excel Spreadsheet
`.ppt`	`application/vnd.ms-powerpoint`	PowerPoint
`.pptx`	`application/vnd.openxmlformats-officedocument.presentationml.presentation`	PowerPoint
`.txt`	`text/plain`	Plain Text
`.csv`	`text/csv`	CSV File

Code

Extension	MIME Type	Description
`.html`	`text/html`	HTML Document
`.css`	`text/css`	CSS Stylesheet
`.js`	`application/javascript`	JavaScript
`.json`	`application/json`	JSON Data
`.xml`	`application/xml`	XML Document
`.php`	`application/x-php`	PHP Script
`.py`	`text/x-python`	Python Script
`.ts`	`application/typescript`	TypeScript
`.md`	`text/markdown`	Markdown

Audio

Extension	MIME Type	Description
`.mp3`	`audio/mpeg`	MP3 Audio
`.wav`	`audio/wav`	WAV Audio
`.ogg`	`audio/ogg`	OGG Audio
`.flac`	`audio/flac`	FLAC Audio
`.m4a`	`audio/mp4`	M4A Audio
`.aac`	`audio/aac`	AAC Audio

Video

Extension	MIME Type	Description
`.mp4`	`video/mp4`	MP4 Video
`.webm`	`video/webm`	WebM Video
`.avi`	`video/x-msvideo`	AVI Video
`.mov`	`video/quicktime`	QuickTime Video
`.mkv`	`video/x-matroska`	Matroska Video
`.mpeg`	`video/mpeg`	MPEG Video

Extension	MIME Type	Description
`.zip`	`application/zip`	ZIP Archive
`.rar`	`application/vnd.rar`	RAR Archive
`.7z`	`application/x-7z-compressed`	7-Zip Archive
`.tar`	`application/x-tar`	TAR Archive
`.gz`	`application/gzip`	Gzip Archive

Fonts

Extension	MIME Type	Description
`.woff`	`font/woff`	Web Font
`.woff2`	`font/woff2`	Web Font 2
`.ttf`	`font/ttf`	TrueType Font
`.otf`	`font/otf`	OpenType Font

Why MIME Types Matter

Practical Applications

Web Development: Servers use MIME types to tell browsers how to handle files
File Downloads: Correct MIME types ensure files download instead of displaying in browser
API Development: REST APIs use MIME types to specify request/response formats
Email Attachments: Email clients use MIME types to handle attachments properly
Security: Browsers enforce security policies based on MIME types

Quick Reference

Most Common:

HTML: text/html
CSS: text/css
JavaScript: application/javascript
JSON: application/json
JPEG: image/jpeg
PNG: image/png
PDF: application/pdf

Common Mistakes

Using text/plain for JSON
Wrong MIME type for JavaScript files
Missing MIME types for font files
Using application/x-www-form-urlencoded incorrectly

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