I've spent about a month working on Brainy, a survey API that can collect data from your forms.

Features

• Dashboard with table
• Redirecting after submitting a form
• Download/view/fetch JSON data
• Download CSV data
• Create/rename/delete surveys
• Create/rename/delete input fields
• Change privacy
• End surveys

To test it out, create a new HTML repl, create a new account and survey in Brainy, and follow the instructions in the docs or in the code page for the survey.

Here's a demo of the dashboard:

And here's a demo form that uses Brainy: https://survey.ruiwenge2.repl.co

I hope you found this useful!