Add a free email tool to your site in one line
Embed Mailsfinder's email verifier, permutator, or pattern detector on your blog, app, or sales-team intranet. Copy one iframe snippet, paste, done.
Email Verifier widget
Visitors type an email, click verify, see syntax + MX + SMTP + disposable check in 2 seconds. No signup required, no rate limit visible to your user.
Embed code
<iframe src="https://mailsfinder.com/embed/email-verifier"
width="100%" height="320" frameborder="0" scrolling="no"
style="border:0;max-width:600px;display:block;"
title="Free email verifier by Mailsfinder"></iframe>
<script>window.addEventListener("message",function(e){if(e.data&&e.data.source==="mailsfinder-embed"&&e.data.type==="resize"){var i=document.querySelectorAll("iframe[src*='mailsfinder.com/embed']");for(var j=0;j<i.length;j++)i[j].style.height=e.data.height+"px"}});</script>The script block enables auto-resize so the iframe always matches the widget's content height.
Live preview
Email Permutator widget
Generate every likely email format for a name + company domain. Sales reps and recruiters use this on outbound research blogs.
Embed code
<iframe src="https://mailsfinder.com/embed/email-permutator"
width="100%" height="400" frameborder="0" scrolling="no"
style="border:0;max-width:600px;display:block;"
title="Free email permutator by Mailsfinder"></iframe>
<script>window.addEventListener("message",function(e){if(e.data&&e.data.source==="mailsfinder-embed"&&e.data.type==="resize"){var i=document.querySelectorAll("iframe[src*='mailsfinder.com/embed']");for(var j=0;j<i.length;j++)i[j].style.height=e.data.height+"px"}});</script>Live preview
Email Pattern Detector widget
Type a company domain, see the most-common email pattern + sample address. Great for B2B research and sales-blog content.
Embed code
<iframe src="https://mailsfinder.com/embed/email-pattern-detector"
width="100%" height="340" frameborder="0" scrolling="no"
style="border:0;max-width:600px;display:block;"
title="Free email pattern detector by Mailsfinder"></iframe>
<script>window.addEventListener("message",function(e){if(e.data&&e.data.source==="mailsfinder-embed"&&e.data.type==="resize"){var i=document.querySelectorAll("iframe[src*='mailsfinder.com/embed']");for(var j=0;j<i.length;j++)i[j].style.height=e.data.height+"px"}});</script>Live preview
Licensing and attribution
Free for any use. Personal blogs, B2B SaaS marketing sites, sales-team intranets, agency portals. Commercial use included.
Attribution required. The "Powered by Mailsfinder" link inside each widget must remain visible and linked. We use this as our only signal of where the widget runs.
No tracking on your visitors. The embed only loads Mailsfinder's verification APIs. We do not set cookies, do not run analytics, and do not collect visitor IP beyond per-IP rate-limiting for abuse prevention.
Need higher limits? Each widget is rate-limited to 15 requests per IP per day on the free tier. If you expect more, talk to us about a paid embedded API.
Want the full Mailsfinder?
Bulk verification, API access, CRM integrations, and 300,000 credits a month for $9.99. Or 2 million credits, once, for $249.