Randell Miller

One of the issues with stock WordPress is that it tends to not like having Javascript in general and linking to an external Javascript file in specific inside of posts or pages. This is problematic for people who are integrating InfusionSoft and WordPress. We tried to find a good solution for this, but failed to find any good plugins which would be suited for the task.
So, we wrote our own.
It is a standard WordPress Plugin. All you need to do is unzip the file to your plugins directory, or use the zip file upload feature. Once you’ve installed it, simply activate. There are no special settings or anything else you need to do.
To embed an InfusionSoft web form into a post or page, use the following short code:
<pre><code>[infusionsoft_form src="<Your form's url>"]
</code></pre>

CTS InfusionSoft Form Shortcode

This plugin adds a shortcode to easily insert into posts and pages the javascript code required to embed an InfusionSoft web form.

Geek Goddess

This plugin automatically fills in basic contact data into the matching fields of the Infusionsoft form embedded on the page.
It works for…
<ul>
<li>Infusionsoft Web Forms from Campaign Builder</li>
<li>Legacy Web Forms (including those made by the Classic Web Form Builder)</li>
<li>Legacy Order Forms</li>
<li>Any form you manually create as long as it uses the Infusionsoft form field names</li>
<li>All versions of the embed code, including the javascript snippet</li>
</ul>
In addition it…
<ul>
<li>Automatically makes first name, last name, email REQUIRED fields (using HTML5 form validation)</li>
<li>Adds placeholders for first name, last name, email, phone, phone5 (or whatever phone field you’re using for cell) if you don’t want to use labels on your forms (web forms only)</li>
<li>Optionally adds in the Infusionsoft Web Tracking Code site-wide for you to help with lead tracking</li>
</ul>
For more details, go to https://www.geekgoddess.com/auto-fill-infusionsoft-forms

Auto-Fill Infusionsoft Forms

Automatically Pre-Fill Infusionsoft Web Forms and Legacy Order Forms with data passed to the form in the URL

CTS InfusionSoft Form Shortcode vs Auto-Fill Infusionsoft Forms