Cost / License
- Free
- Proprietary
Platforms
- Online

Penpot is described as 'Open-source design tool with seamless responsive layouts and code inspection, allowing designers and developers to collaborate effortlessly' and is a very popular UI Design tool in the photos & graphics category. There are more than 50 alternatives to Penpot for a variety of platforms, including Web-based, Mac, Windows, Linux and SaaS apps. The best Penpot alternative is Affinity, which is free. Other great apps like Penpot are Figma, Canva, Pencil Project and Sketch.

Helix is a free AI-powered prototyping tool that turns ideas into interactive prototypes in just 3 minutes—no coding or design skills needed.




"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.



Vecta is a cloud-based collaborative diagramming tool that boosts productivity and increase effectiveness for team communication.







Diagramiq is an online app for creating Flowcharts, UML, BPMN, Network Diagrams, Decision Trees and more. It's blazing fast, intuitive and it has a wide-range of predefined shapes to get you started.








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.

IYOPRO, Improve your Processes, is a professional online BPM and workflow system that utilizes the BPMN 2.0 standard.

Simple vector graphics editor for creating flowcharts, UML class diagrams, illustrations and slide shows.

Prott is a free rapid prototyping and radical collaboration tool. Share your ideas and get feedback through easy-to-make interactive prototypes with Prott.


