Pencil Project
An open-source desktop wireframing application with interface stencils, multiple pages and document export.
About Pencil Project
Pencil Project is a free, open-source desktop wireframing and GUI prototyping tool for creating mockups of desktop platform interfaces. It supports multi-page documents, includes built-in interface stencils, and offers document export functionality. The latest stable release is version 3.1.1, and the tool is compatible with all desktop operating systems.
Key features
- Open-source GUI prototyping and wireframing functionality
- Built-in interface stencils for mockup creation
- Multi-page document support for projects
- Document export capabilities
- Cross-platform compatibility for all desktop OSes
- Completely free to use with no cost
Best for: It is best suited for designers, product managers and developers seeking a free, open-source tool for desktop GUI prototyping and wireframing.
Good for
- Free and open-source with no usage fees
- Compatible with all desktop operating systems
- Includes pre-built interface stencils for mockups
Pencil Project at a glance
- Website
- pencil.evolus.vn
- Category
- Design & Creative › Image Creation & Editing
- Type
- Online tool
- Pricing
- Free
- Open source
- Yes
- Last checked
- Oct 9, 2026 · Online when checked
- Listed
- Oct 9, 2026
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Pencil Project FAQ
Is Pencil Project free to use?
Yes, it is a free and open-source tool with no usage cost.
Which operating systems support Pencil Project?
It is available for all desktop platforms.
What is the latest stable version of Pencil Project?
The latest stable version listed is 3.1.1.
Is something wrong or out of date?
Tell us and an editor will check it.
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