Lead capture forms can be embedded on any website using an iframe.
<iframe src="https://your-domain/lead/{form_id}/{slug}"
width="400" height="200" frameborder="0"></iframe>
Get the exact snippet from Admin → Lead Forms → [your form] → Embed Code.
<iframe src="https://your-domain/lead/{form_id}/{slug}"
style="width: 100%; max-width: 400px; height: 200px; border: none;"></iframe>
To restrict which sites can embed your form, configure Allowed Origins in the form settings. Add one origin per line (e.g., https://example.com). If left empty, any site can embed the form.
Use the style fields in the form editor to match your site's design. For advanced customization, use the Custom CSS field.