Formtools is a lightweight (4.84 KB!) and powerful JQuery plugin that lets you validate, reset, and fill your HTML forms. It was designed to be extensible and customizable to fit your needs. You can easily define your input validators in the HTML markup and validate the form via Javascript with just one line of code!
The development is based on Docker / Compose. You need only Docker Compose fully installed and working on your system.
To start development environment:
docker-compose up
Access demo/example page: http://localhost:9000
Access docs: http://localhost:9999