Description: Excalidraw is a free, open-source online whiteboard tool for sketching hand-drawn like diagrams. It has a minimal and intuitive UI with various drawing tools for easily creating flowcharts, UML diagrams, user journeys, wireframes and more. Great for brainstorming and collaboration.
Type: software
Pricing: Open Source
Description: Pencil Project is a free and open source GUI prototyping and mockup tool. It allows users to create wireframes and prototypes for software interfaces and websites quickly and easily, without programming knowledge.
Type: software
Pricing: Open Source