Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.
TellForm - Opensource form builder alternative to TypeForm
UseResponse - Open-source, self-hosted customer feedback software, live chat and helpdesk system that you can install on your server. Organize documentation using knowledge base and get feedback from social networks with centralized system
OhMyForm - ✏️ Free open source alternative to TypeForm, TellForm, or Google Forms ⛺ - ohmyform/ohmyform
Google Forms - Simple web forms from Google.
Crazy Egg - Through Crazy Egg's heat map and scroll map reports you can get an understanding of how your visitors engage with your website so you can boost your conversion rates.