Pencil
Open-source GUI prototyping tool for quick mockups and wireframes.
·Design·Free
About
Pencil is a free, open-source prototyping tool that lets you create mockups, wireframes, and diagrams using built-in stencil collections. It supports various UI elements for desktop and mobile platforms, includes diagramming features, and allows export to multiple formats including PNG, PDF, and HTML.
🎯 Why it's useful
Perfect for bootstrapped founders who need to quickly sketch out app interfaces and user flows without paying for expensive design software.
💜 Our take
It's completely free and open-source, runs on all major platforms, and has a surprisingly robust collection of UI components for rapid prototyping.
pencil.dev
Reviews
No reviews yet — be the first.