While Bitrix24 lets you build all kinds of online forms, and online registration forms are probably most popular templates. Why is Bitrix24 better than other registration form creators? First, it's totally free. Yes, unlimited submissions that don't cost you a penny. Second, it supports online payments via PayPal, which is important for events that aren't free. Third, you don't need to know HTML or PHP, the code is provided to be embedded into your website (Wordpress, Drupal, Joomla, any other CMS) or you can host the form at Bitrix24.com. That's right, you don't even need to have a website.
The fact that this form designer is integrated with CRM, which is also free, gives you a number of advantages. First, you can distribute all incoming registrations among your sales agents. You can run email and telemarketing campaigns directly from inside Bitrix24 in order to make sure that people who signed up actually pay or you can encourage last year attendees to visit this year. As mentioned, quotes, invoices and online payments are available too. Bitrix24 even have collaboration and event management tools built inside. Awesome, isn't it?
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, and can be easily customized
and integrated with other tools, please download trial version here.