An open source wireframe to app tool powered by Llama 3.2 vision. Upload a screenshot of a simple site/design & get code.


The best Wireframing alternative to POP (Prototyping on Paper) is Napkins.dev, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to POP (Prototyping on Paper) and seven of them are Wireframing Tools so hopefully you can find a suitable replacement. Other interesting Wireframing Tool alternatives to POP (Prototyping on Paper) are Frame0, Balsamiq Wireframes, Wireflow and Marvel.
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 collaborative design tool offering wireframing, prototyping, and design specs creation in a single browser-based platform. Integrate seamlessly with your workflow via API, sync with Sketch and Photoshop, and utilize a vast library of assets. Streamline design-to-dev with automated code generation.





Online tool for creating mockups in the browser. Use your browser’s save function to save the file (just html for view only, complete save for an editable version) or export to codepen for others to view.

POP is an app-based app prototyping tool, to be viewed on a device. Balsamic is not.