Rapid Information Systems supply "Rapid", an open source drag and drop web application builder, with support for mobile, and forms. No code is required for basic tasks. The simple Control/Event/Action model can perform from the simplest, to the most advanced of chores. Styling applications is easy and there are extendable interfaces for database connections, web services, security, and more. It has a light-weight footprint and avoids bloated, slow-to-load code.
Rapid is used by local authorities in London to provide attractive web screens for joining up different enterprise systems, and is popular in call centres. Rapid reduces the time-to-live by allowing privileged users to modify screens immediately. It puts users firmly in control and there is no lock-in.