ProtoShare AlternativesWireframing & Prototyping Tools like ProtoShare

Pencil is a standalone app that lets you create diagrams or UI mockups. It doesn't have collaboration/multi-user features.

Lucidchart is a cloud-based platform that promotes teamwork through diagramming, collaboration, and data visualization. It serves millions worldwide, offering flowcharts, UML, real-time collaboration, Visio support, and browser access. Designed for innovation and understanding, it integrates easily into workflows.

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.

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.

Axure RP is the leading tool for rapidly creating wireframes, prototypes and specifications for applications and web sites.

Open source wireframing tool written in typescript, react and redux.

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.

Studio.Design is the site builder for designers. The browser app is packed with design features as intuitive as Figma, a CMS as simple as Notion, and one-click publishing to your domain. Now, you can finally turn any idea into a stunning website quickly and easily.

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.

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.