JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
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If you need the submitted data from form into a database, you can create a PHP script to access them via the 'POST' method, then insert them to the database.
Please take a look at it this guide. It has some good details on how to achieve this.
Please let me know if you need further assistance and/or clarification.