Bitrix24 is a 100% free landing page maker unlike any other. With Bitrix24.Sites you can create not only landing pages, but entire websites as well. Most importantly, it comes with a full-featured customer relationship management module, so contact information that people leave on your website is automatically saved as new leads, contacts or deals (opportunities) in the CRM. With our free form builder you can create email capture forms, event registration forms, contact forms, support forms, etc. Bitrix24 lets you create landing pages with videos as well.
Bitrix24 gives you unlimited free landing page hosting (bandwidth), meaning you can create as many landing pages as you want and drive as much traffic as you can without spending a dime. In addition to hosting your page with bitrix24.site domain, you can connect your own domain name. Hundreds of thousands of royalty-free images (courtesy of Unsplash) and a multitude of landing page templates are at your disposal too. Here's an example of landing page design created with Bitrix24.
Bitrix24 CRM manual is available here.
If you are interested in buying self-hosted editions of Bitrix24, which come with API, CMS and source code, can be easily customized and integrated with other tools, please download a trial version here.