MIME (Multipurpose Internet Mail Extensions) types are labels that identify the format of data. They consist of a type and subtype separated by a slash, e.g., image/jpeg or application/json. Browsers and servers use MIME types to decide how to process or display files.

What MIME type should I use for JSON?

Use application/json. This is the correct and officially registered MIME type for JSON data. The old text/json was never standardised.

What is the MIME type for PDF files?

The MIME type for PDF files is application/pdf. Browsers will typically display the PDF inline or open a PDF viewer rather than downloading the file.

What is the MIME type for SVG?

SVG files use image/svg+xml. When serving SVG from a web server, set Content-Type: image/svg+xml to allow the browser to render it inline.

What is the difference between text/plain and text/html?

text/plain tells the browser to display the content as raw text without interpreting any markup. text/html tells the browser to parse and render the HTML. Sending HTML with text/plain MIME type will show raw markup to the user.

What MIME type should I use for WebP images?

Use image/webp for WebP images. This is the standard MIME type recognised by all modern browsers.

What is application/octet-stream?

application/octet-stream is the generic binary data MIME type. Browsers treat it as a file download prompt rather than attempting to display it. Use it for arbitrary binary files when no more specific MIME type applies.

What MIME type should I use for web fonts?

Use font/woff for WOFF, font/woff2 for WOFF2, font/ttf for TrueType, and font/otf for OpenType fonts. Older resources may use application/font-woff, but the font/* types are the current standard.

Web Tools /

MIME type lookup

Search by file extension (e.g. .webp) or MIME type (e.g. application/json) to find the mapping instantly.

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Search extension or MIME type

Type at least 2 characters to search.

How to use

Type a file extension (with or without the dot) or a MIME type string.
Results appear instantly as you type.
Click the copy button next to any MIME type to copy it to the clipboard.

Common MIME types reference

image/jpeg — .jpg, .jpeg
image/png — .png
image/webp — .webp
image/avif — .avif
image/gif — .gif
image/svg+xml — .svg
application/json — .json
application/pdf — .pdf
text/html — .html
text/css — .css
text/javascript — .js, .mjs
video/mp4 — .mp4
audio/mpeg — .mp3

Also see: HTTP Status Reference and Meta Tags Preview.

常見問題

What is a MIME type?: MIME (Multipurpose Internet Mail Extensions) types are labels that identify the format of data. They consist of a type and subtype separated by a slash, e.g., image/jpeg or application/json. Browsers and servers use MIME types to decide how to process or display files.
What MIME type should I use for JSON?: Use application/json. This is the correct and officially registered MIME type for JSON data. The old text/json was never standardised.
What is the MIME type for PDF files?: The MIME type for PDF files is application/pdf. Browsers will typically display the PDF inline or open a PDF viewer rather than downloading the file.
What is the MIME type for SVG?: SVG files use image/svg+xml. When serving SVG from a web server, set Content-Type: image/svg+xml to allow the browser to render it inline.
What is the difference between text/plain and text/html?: text/plain tells the browser to display the content as raw text without interpreting any markup. text/html tells the browser to parse and render the HTML. Sending HTML with text/plain MIME type will show raw markup to the user.
What MIME type should I use for WebP images?: Use image/webp for WebP images. This is the standard MIME type recognised by all modern browsers.
What is application/octet-stream?: application/octet-stream is the generic binary data MIME type. Browsers treat it as a file download prompt rather than attempting to display it. Use it for arbitrary binary files when no more specific MIME type applies.
What MIME type should I use for web fonts?: Use font/woff for WOFF, font/woff2 for WOFF2, font/ttf for TrueType, and font/otf for OpenType fonts. Older resources may use application/font-woff, but the font/* types are the current standard.

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