BreezingForms is a well established Joomla form builder from Crosstec. Advertising features such as multi page forms, responsive forms, upload progress, and numerous third party integrations, it is a powerful form builder extension. They do offer a free version that includes the core features, but misses out on some of the advanced input elements, and all of the integrations, however it would be perfectly suitable if you don't need anything fancy done with your form responses.
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