Bishoy.A

This is a simple add-on plugin for the Contact form 7 plugin that allows you to do 2 things:
<ol>
<li>Select some forms to enable auto-save on them, meaning when a user fill the form, without even submitting it, then navigates to another page and comes back or refreshes the page, they will see the data they previously filled still available for them!</li>
<li>Select some forms to enable “Fill with Facebook” feature for them, this will automatically insert a link to the contact form 7 selected that when a user clicks, it allows them to authenticate their Facebook profile and automatically fill the form fields once they authenticate!</li>
</ol>
The plugin comes with a nice WordPress admin’s dashboard settings page and is very easy to use!
This plugin is not affiliated with the Contact Form 7 plugin

Autosaver for Contact Form 7

Great plugin

Auto-save selected Contact Form 7 and Auto-fill them by Facebook!

Maruf Sarkar

Auto Save Progress for Gravity Forms automatically saves user progress on Gravity Forms to their browser’s localStorage. This means your users won’t lose their form data if they accidentally refresh the page or close the browser.
Key Features:
<ul>
<li>Auto-saves form progress to browser localStorage</li>
<li>No server-side action needed – saves locally on user’s browser</li>
<li>Auto-restores form data when page is reloaded</li>
<li>Supports all Gravity Forms field types</li>
<li>Works with multi-step/conditional forms</li>
<li>Automatically clears data after successful submission</li>
<li>Customizable save interval (1-30 seconds)</li>
<li>Optional browser console notifications</li>
<li>Easy admin settings page</li>
<li>Lightweight and performant</li>
</ul>
<h3>Support</h3>
For support and bug reports, please use the official plugin support forum: 
https://wordpress.org/support/plugin/auto-save-progress-for-gravity-forms/
<h3>License</h3>
This plugin is licensed under the GPL v2 or later. See license for more details.

Auto Save Progress for Gravity Forms

Automatically save Gravity Forms progress to browser localStorage. Recover user data if page is refreshed or closed.

Autosaver for Contact Form 7 vs Auto Save Progress for Gravity Forms