Try FormForAll, the most complete and easy to use free online web form builder. With its Drag & Drop platform, no coding is necessary.
FormForAll has tens of predefined field and options that allow you to create any form: sign-up, log-in, registration, booking.
Its exclusive features include Social Login (the possibility for your web users to register with their Facebook or Google+ identity), double opt-in. With its multilingual platform, you can create your form in your own language and have it published and displayed in more than 37 languages.
FormForAll forms can be included in e-mails or in any based HTML / PHP web sites.