Revolutionize your development process by bridging the gap between designers and developers to turn your design visions into production-ready UIs.
Cost / License
- Free Personal
- Proprietary
Application types
Platforms
- Windows
- Mac
- Linux
- Flathub
- Flatpak




Pencil Project is described as 'Pencil is a standalone app that lets you create diagrams or UI mockups. It doesn't have collaboration/multi-user features' and is a very popular UI Design tool in the photos & graphics category. There are more than 50 alternatives to Pencil Project for a variety of platforms, including Windows, Mac, Web-based, Linux and iPhone apps. The best Pencil Project alternative is Penpot, which is both free and Open Source. Other great apps like Pencil Project are Figma, LibreOffice - Draw, Open Pencil and Penpot Desktop.
Revolutionize your development process by bridging the gap between designers and developers to turn your design visions into production-ready UIs.




WireframeSketcher is a software tool that helps product managers, designers and developers quickly create wireframes, mockups and prototypes for desktop, web and mobile applications. It’s standalone software and a plug-in for any Eclipse IDE.




Origami Studio is a free design tool built by Facebook designers for creating interactive UI prototypes. An elegant, layer-based interface allows designers to repaidly create prototypes with layers, build interactions and then share them with others.




UXPin is a web-based system for managing design documents like wireframes, sitemaps, persona descriptions or flowcharts. It lets you upload image files, invite teammates to review and comment on them, and keep track of revisions.




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.



Alva works with your production frontend components, adding up-to-date, responsive, and interactive designs to your living styleguide.

Core2D is a multi-platform application for making data driven 2D diagrams. The application has built-in wyswig vector graphics editor where you can bind data to shapes, share data across multiple documents, edit documents using layers.

MockupTiger is a web based application that helps you to build fluid wireframes, mockups or prototypes for your next web application or desktop software.

"If they could see what Im thinking, they'd get it!" People just understand faster with pictures. It helps them see how information is connected, whether it is complete, and how a shift in one element impacts something else.



The newest design tool from the leaders in UX, Indigo Studio lets you quickly and simply explore and create functional, animated UI prototypes while maintaining the focus on user experience at every step.


Scapple is an easy-to-use tool for getting ideas down as quickly as possible and making connections between them. It isn’t exactly mind-mapping software—it’s more like a freeform text editor that allows you to make notes anywhere on the page and to connect them using straight...


