Pencil is a standalone app that lets you create diagrams or UI mockups. It doesn't have collaboration/multi-user features.
Cost / License
- Free
- Open Source (GPL-2.0)
Application types
Alerts
- Discontinued
Platforms
- Mac
- Windows
- Linux
- PortableApps.com




There are many alternatives to Napkee for Windows and since it's discontinued a lot of people are looking for a replacement. The best Windows alternative is Pencil Project, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Napkee and 14 are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to Napkee are Frame0, Balsamiq Wireframes, Axure RP and WireframeSketcher.
Pencil is a standalone app that lets you create diagrams or UI mockups. It doesn't have collaboration/multi-user features.




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FlairBuilder is a user interface prototyping tool for easy authoring of interactive website wireframes, mockups and GUI prototypes.

HotGloo is a UX, wireframe and prototyping tool designed to build wireframes for web, mobile and wearables. Create and share fully interactive prototypes with your team and clients and gather feedback on the process.



Serena Prototype Composer - the best agile application prototyping tool is now free! View the demo, take the product tour, or download it free today.
EaSynth ForeUI is an easy-to-use UI prototyping tool. You can use ForeUI to create skinnable prototype of software or website, and run the interactive simulation in your web browser. You can switch the UI theme of the prototype, thus the fidelity will be changed as well.



Create five screens in ten minutes without any programming knowledge or prior training!



