The best UI Design 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 nine of them are UI Design Tools so hopefully you can find a suitable replacement. Other interesting UI Design Tool alternatives to Indigo Studio are Napkins.dev, Frame0, Balsamiq Wireframes and Wireflow.
Pencil is a standalone app that lets you create diagrams or UI mockups. It doesn't have collaboration/multi-user features.
An open source wireframe to app tool powered by Llama 3.2 vision. Upload a screenshot of a simple site/design & get code.
Sketch your app ideas without stress Make hand-drawn style wireframes quickly and easily.
Low-fidelity UI wireframing tool simulating sketching experience, optimized for speed with Quick Add, built for collaboration, drag-n-drop simplicity, exportable wireframes to PNG/PDF, interactive prototypes via linking, hundreds of UI components, reusable symbols, and more.
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.
A streamlined web app that helps you create and collaborate in real-time on wireframes, mockups, diagrams and prototypes.
Revolutionize your development process by bridging the gap between designers and developers to turn your design visions into production-ready UIs.
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.
MockFlow accelerates early-stage product design and ideation with AI-powered wireframing, prototyping, and visual brainstorming. WireframePro and IdeaBoard enable teams to collaboratively transform initial concepts into professional, shareable wireframes and diagrams.
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