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




The best Prototyping alternative to Indigo Studio is Pencil Project, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to Indigo Studio and 15 are Prototyping Tools so hopefully you can find a suitable replacement. Other interesting Prototyping Tool alternatives to Indigo Studio are Frame0, Balsamiq Wireframes, Moqups and InVision.
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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