This is the best tool available for easily creating high-quality mobile responsive landing pages. With a vast selection of templates proven to convert your viewers into subscribers (or buyers), you can create opt-in, sales, webinars, and thank-you pages within minutes. If you want to customise these templates or build a page from scratch, you can via their drag-and-drop visual page editor. LeadPages has an excellent built-in split testing feature and works with WordPress and non-WordPress sites.

They also have a list-building feature called LeadBoxes that allows you to create pop-ups, 2-step opt-in forms, and exit pops.

A key goal of a landing page is to collect email addresses so LeadPages integrates with all major email marketing providers and other marketing and sales applications.