These applications have simple and easy to use GUI that can be used without knowledge of any coding. Our drag-and-drop functionality makes it easy to arrange every section and component for mobile, tablet, or website wireframes. Wireframes can be seamlessly integrated into a use case's flow of events. Pidoco is a collaborative online wireframing and prototyping tool, which works entirely in your web browser.With Pidoco you can easily create clickable mockups, wireframes and GUI prototypes without programming. It helps to speed up the journey between sketches and final deliverables. There is a need to understand each one of them to comprehend how efforts are being directed towards achieving organisational objectives. It is one of the best open source data modeling tools that automatically generates column and constraints. fluidIA - A free open source project for prototyping open source projects. In each workbench, you will get a specific set of tools to create a specific type of 3D model.