Wagtail flexible forms provides a more robust StreamField-based form builder (sometimes called a "StreamForm") with similar functionality to wagtail.contrib.forms.
Read the documentation, which includes a video demo and example project.
This project was originally developed by Bertrand Bordage of NoriPyt with the intention of being merged into Wagtail as wagtail.contrib.stream_forms.
In 2019, CodeRed used the code as part of Wagtail CRX (coderedcms) to and began providing ongoing maintenance as part of that package.
In 2025, with renewed interest from the Wagtail community and the Wagtail core team, CodeRed took ownership of the repository and backported the vendored code from coderedcms to produce a stable version of wagtail-flexible-forms as its own pip package.
Stay tuned as we work to add more documentation, examples, and unit tests with the goal of eventually merging the package into Wagtail as the official "stream forms" implementation. It is a fantastic package and we are excited to be investing in it to share with the Wagtail community!