Nine of our tools can sit inside a page on your own website. You paste one snippet; your visitors use the tool without leaving your page. There is nothing to pay and nothing to sign up for.
The embed is the tool on its own: the heading, the inputs and the live result, without our navigation, articles or footer. It runs in your visitor’s browser. Nothing they type is sent anywhere — not to us and not to you.
?embed=1 addresses and the theme parameter described here will keep working, so a snippet you paste today will not need replacing.Open any tool in the list below, click Embed this tool under the calculator, and copy the code. Paste it into your page’s HTML where the tool should appear. In WordPress, add a Custom HTML block and paste the code into it.
Basic — an iframe with a fixed height, plus a one-line credit. This example is the airflow converter:
<iframe src="https://doneinbrowser.com/airflow-unit-converter/?embed=1"
style="width:100%;max-width:760px;border:1px solid #e8e3da;
border-radius:8px" height="660" loading="lazy"
title="Airflow Unit Converter"></iframe>
<p style="font-size:13px">Airflow Unit Converter by <a href="https://doneinbrowser.com/airflow-unit-converter/">Done In Browser</a></p>Auto-height — the same, plus a short script that resizes the frame to fit the tool as its result grows or shrinks. Paste the script once per page, however many tools you embed. The embedded tool tells your page its height and nothing else; the script ignores every message that does not come from https://doneinbrowser.com.
<iframe src="https://doneinbrowser.com/airflow-unit-converter/?embed=1"
style="width:100%;max-width:760px;border:1px solid #e8e3da;
border-radius:8px" height="660" loading="lazy"
title="Airflow Unit Converter"></iframe>
<p style="font-size:13px">Airflow Unit Converter by <a href="https://doneinbrowser.com/airflow-unit-converter/">Done In Browser</a></p>
<script>
/* Done In Browser auto-height. Paste once per page. */
window.addEventListener('message', function (e) {
if (e.origin !== 'https://doneinbrowser.com') return;
var d = e.data;
if (!d || d.type !== 'dib-embed-height' || typeof d.path !== 'string' || !(d.height > 0)) return;
document.querySelectorAll('iframe').forEach(function (f) {
if (f.src.indexOf(d.path) !== -1) f.style.height = d.height + 'px';
});
});
</script>Auto-height is available on the duct size calculator, the airflow unit converter and the Minecraft circle generator. The other six tools use the basic snippet.
This is the airflow unit converter, embedded on this page with the auto-height code.
Airflow Unit Converter by Done In Browser
With no parameter the embed uses its default colours. To fix them, add &theme=dark or &theme=light after ?embed=1, for example https://doneinbrowser.com/duct-size-calculator/?embed=1&theme=dark.
The theme parameter works on the same three tools as auto-height. On the Minecraft circle generator, leaving it off follows the visitor’s system light or dark setting. The duct and airflow tools are light unless you ask for dark.
Each snippet ends with a short credit line: the tool’s name as plain text and a link to us under our name. Please keep it — it is how people find the full tool, with its charts, formulas and sources. You may add rel="nofollow" to the link if you prefer.
Embedded tools are the same free tools as on this site and are provided “as is”, with no warranty of any kind. Results are estimates, not engineering advice; for a decision that matters, confirm with a qualified professional. Our terms of use apply.
Want it without our branding? Email us. The address is on the contact page, which is also the place to report a tool that misbehaves inside your site.