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: Penpot is an open-source design and prototyping tool for UX/UI designers. It allows for vector graphics editing, page layout, and collaborative design. It has intuitive user interfaces and a focus on UX design/wireframing like Figma or Sketch.
Type: software
Pricing: Open Source