Skip to content
Toolspire

Developer Tools

MIME Type Lookup

MIME Type Lookup is part of Toolspire and is ready as soon as this page loads. The dot is optional. PNG and png are the same. This is a short table for everyday files, not the full IANA registry.

Runs in this tabFreeNo account

On this page

What you can do here

A dot is stripped

.png and png are the same lookup.

Case is folded

PNG is png.

Unknown stays unknown

A novel extension is not assigned application/octet-stream in disguise.

The sequence

How to use the MIME Type Lookup

  1. 1

    Type the extension

    png is the sample.

  2. 2

    Try pdf and json

    You should see the application types.

  3. 3

    Treat unknown as absent

    Add the type in your server config from the IANA list, not from a guess here.

Worth knowing

  • MIME Type Lookup on Toolspire: png is image/png. jpg and jpeg are image/jpeg.
  • pdf is application/pdf. json is application/json.
  • html is text/html. css is text/css. js is text/javascript.
  • An extension not in the table is Unknown extension, not a guessed type.

Everyday types, nothing invented

Browsers and servers use a MIME type to decide how to treat a file. This page maps a short list of extensions people actually type: images, pdf, json, html, css, javascript, svg, csv, xml, zip, wasm, woff2, mp3, mp4 and webm. If the extension is not there, the page says so. Guessing application/octet-stream for everything unknown would hide the gap.

FAQ

Questions about MIME Type Lookup

Where does MIME Type Lookup run?

MIME Type Lookup runs in this tab on Toolspire. What you type or drop in is not sent to us and is not stored on a server.

What is the MIME type of png?

image/png.

What about jpeg?

image/jpeg. jpg uses the same type.

What is pdf?

application/pdf.

What if the extension is missing from the list?

The result is Unknown extension.

Keep going

Related tools

HTTP Status LookupNewHTTP Status Lookup on Toolspire. Look up a common HTTP status code. 404 is Not Found. 418 is a teapot. Codes outside the short list are named as not on it.Developer ToolsStrip HTMLNewRemove HTML tags and decode &amp;, &lt;, &gt; and &nbsp;. “<p>Hi <b>there</b></p>” becomes “Hi there”. The maths stays on your device.Text ToolsBase64 Encoder & DecoderNewBase64 Encoder & Decoder on Toolspire: Encode text or files to Base64 and decode Base64 back — UTF-8, URL-safe Base64URL, data URLs for images.Developer ToolsJSON Formatter & ValidatorNewJSON Formatter & Validator on Toolspire: Format, validate, minify and repair JSON online. Get the exact line and column of every error.Developer ToolsXML to JSON ConverterNewXML to JSON Converter on Toolspire. Convert XML to JSON and JSON to XML online. Keeps attributes, arrays and leading zeros intact.Developer ToolsDNS LookupNewCheck A, AAAA, CNAME, MX, NS, TXT, SOA and CAA records of any domain, see SPF and DMARC, and do reverse DNS for an IP address. Open DNS Lookup on Toolspire.Developer Tools

Open the full directory

Last updated Report a problem or suggest a feature