This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

OptinEngine Email Optin Forms


Convert visitors into subscribers with beautiful email optin forms

  • Popups
  • Sliders
  • Info Bars
  • Before Post
  • After Post
  • Widgets (Sidebar/Footer)
  • Inline (Shortcode)

Email Integration

  • MailChimp
  • Aweber
  • Intercom
  • Drip
  • Campaign Monitor
  • Get Response
  • Active Campaign
  • OptinEngine lead list

Create a Optin forms in minutes. No coding required!

Within minutes of installing OptinEngine you can begin turning your visitors into subscribers and leads with beautiful optin forms that work seamlessly with your theme.

Fully customize for forms to match the look and feel of your site

Maximize conversions by customizing text, fonts and colors of your optins to integrate seamlessly with your website’s theme using OptinEngine’s real-time email optin editor.

OptinEngine increased our subscriber conversion rate 200%!DesignStacks
OptinEngine doubled our opt-in rates overnight just by spending a couple of minutes setting up an optin slider!


  • Optin template picker
  • Optin editor
  • The main OptinEngine admin interface.
  • Optin template example
  • Optin template example
  • Optin template example
  • Optin template example
  • Optin template example
  • Optin template example
  • Optin template example
  • Optin template example
  • Add an email provider


This section describes how to install the plugin and get it working.

  1. Upload the plugin files to the /wp-content/plugins/optinengine-lite directory, or install the plugin through the WordPress plugins screen directly.
  2. Activate the plugin through the ‘Plugins’ screen in WordPress
  3. Click the OptinEngine link in the left menu
  4. Add a new optin by clicking the Create New button


Can I create multiple optin forms?

Yes, you can create as many forms as you like

Can I have multiple optins active at the same time?

Yes, if you have multiple active optins the plugin will randomly choose one to display

Can I connect OptinEngine to my email provier

Yes, we currently support MailChimp, Aweber, Drip, GetResponse, Campaign Monitor, Intercom and Active Campaign

Can I save leads to an external email provider and keep a copy in OptinEngine?

Yes, you can tell OptinEngine to keep a copy of leads locally as well as adding them to your 3rd party provider


April 3, 2018
I really do not understand how such an excellent plugin can be so little known. Definitively, this is one of the best email collector plugins I ever used. It is really easy to install it and it is much easier to use it. And - what is the most important thing for any user - the templates look incredibly well. Because of this I strongly recommend it.
November 16, 2017
please continue your work, it's will be the best opt-in plugin.
Read all 6 reviews

Contributors & Developers

“OptinEngine Email Optin Forms” is open source software. The following people have contributed to this plugin.




  • Improve widget display logic
  • Fix issue with showing optins on specific pages


  • Minor bug fixes with widget in customizer


  • Minor bug fixes


  • Inline optins
  • Before post optins
  • Affter post optins
  • Widgets
  • Multiple optins per page
  • Minor bug fixes


  • Improved editor screen
  • Added editor for thank you message
  • Minor bug fixes


  • Added red theme
  • Fixed hover style conflict with certain themes


  • Minor bug fixes


  • Minor bug fixes


  • Added orange-red templates
  • Add support for older versions of MySQL


  • Fix minor bug introduced in 2.1.5


  • Optin Images
  • Logging
  • Affiliate program
  • Minor bug fixes


  • Added rich text editor to content
  • Added green templates
  • Remove pretty print on json to support PHP 5.2
  • Minor bug fixes


  • Better error handling


  • Added Active Campaign support
  • Improved template picker
  • Fixed issue with thank you display


  • Added the template picker


  • Improve optin look and feel.


  • Add support for PHP 5.2


  • Minor bug fixes


  • Minor bug fixes


  • Minor bug fixes


  • Added GetResponse support
  • Added Drip support
  • Added Aweber support
  • Added Campaign Monitor support
  • Added Intercom
  • Added additional fonts
  • Style improvements / Fixes
  • Load JS resources according to plugin version
  • Fixed issue with leads loading more than once
  • Fixed issue with email list not being set by default
  • Various bug fixes


  • Version bump and fix issue with table creation


  • Added MailChimp email integration


  • Fixed padding issue on inputs


  • Initial public release