Apps similar to Open Pencil include Penpot, which is open source with a free version. Other options are Figma, Pencil Project, Lunacy and Penpot Desktop. There's no shortage of Prototyping Tools like Open Pencil, with more than 50 alternatives for the web, Mac, Windows, Linux and iPad.
Feature-rich, open-source Wireflow offers a collaborative platform for online creation of complex user flow prototypes. Ideal for team work in UI design, wireframing, and mind mapping, promoting idea sharing in real-time environment aided by modern whiteboard features.
Aktivisda is a web application to facilitate the creation of visuals that use the graphic charter of an organization, and the spreading of this graphic charter.
United Kingdom
OmniGraffle can help you make eye-popping graphic documents—quickly—by providing powerful styling tools, keeping lines connected to shapes even when they’re moved, and magically organizing diagrams with just one click.
United States
We believe the screen is the most important place in the world. That’s why we are dedicated to helping you deliver the best possible digital product experience, with our platform and best practices from your peers.
United States
A streamlined web app that helps you create and collaborate in real-time on wireframes, mockups, diagrams and prototypes.
Romania
EU
Akira is a native Linux Design application built in Vala and GTK. Akira focuses on offering a modern and fast approach to UI and UX Design, mainly targeting web designers and graphic designers. The main goal is to offer a valid and professional solution for designers who want to...
ItalyEU
Axure RP is the leading tool for rapidly creating wireframes, prototypes and specifications for applications and web sites.
United States
Play empowers you to design, build and launch better mobile products, in less time, with fewer barriers - all on your mobile device.
AI-powered prototyping tool enabling product teams to quickly generate UI aligned to existing styles, import design systems, collaborate live, gather user feedback, test new features, support data-driven decisions, and ensure enterprise-level security and compliance.
United States
The world's first open-source AI-native vector design tool and the first to feature concurrent Agent Teams. Design-as-Code. Turn prompts into UI directly on the live canvas. A modern alternative to Pencil.
ProtoPie is the easiest tool used to turn your UI/UX design ideas into highly interactive prototypes for mobile, desktop, web, all the way to IoT.
South Korea
China
