Formstack: The Best Open-Source Alternatives

Formstack promotes itself as a platform to create online forms, collect data, integrate systems, and automate workflows.

In the directory, Formstack is listed in the «Form Management» category.

Here you can find open-source alternatives, and separately marked source-available alternatives, to «Formstack» (external link) in the category «Form Management».

In the Category «Form Management»

form.io

form.io builds web forms with input validation and logic. APIs connect the forms to other applications.

  • Forms

Formbricks

Formbricks creates forms and surveys and analyzes the responses.

  • Forms