Embed the file extension lookup widget

The WhatFileType widget lets your visitors look up any file extension without leaving your page. It is a single lightweight iframe with no sign-up, and links each result to the full details. Paste one of the snippets below wherever you want it.

Live preview

Basic embed

Paste this where you want the widget to appear.

<iframe
  src="https://whatfiletype.com/widget"
  title="File extension lookup by WhatFileType"
  width="100%"
  height="240"
  style="border:0;max-width:440px;"
  loading="lazy"
></iframe>

Centered, responsive

Wrap it to cap the width and center it in a column.

<div style="max-width:440px;margin:0 auto;">
  <iframe
    src="https://whatfiletype.com/widget"
    title="File extension lookup by WhatFileType"
    width="100%"
    height="240"
    style="border:0;"
    loading="lazy"
  ></iframe>
</div>

Good to know

The widget is a static page, so it loads fast and never rate-limits.
Each result opens the matching WhatFileType page in a new tab, keeping visitors on your site.
A small "Powered by WhatFileType" link sits at the bottom. Please keep it, it is how people find the tool.
Set the iframe height to about 240px for the default layout.

Prefer raw data?

If you want to build your own interface, the same information is available from the free JSON API.