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
Description: ProtoShare is a collaborative prototyping and design platform that allows teams to work together on mockups, wireframes, user flows, and prototypes in real-time. With a drag-and-drop interface, prebuilt UI kits and templates, commenting tools, version history, and image hosting capabilities, ProtoShare is ideal for modern product design teams.
Type: software