There are many alternatives to Mockup Builder as a web app if you are looking for a replacement. The best Online alternative is Lucidchart, which is free. If that doesn't suit you, our users have ranked more than 25 alternatives to Mockup Builder and 17 are available as a web app so hopefully you can find a suitable replacement. Other interesting Online alternatives to Mockup Builder are Napkins.dev, Balsamiq Wireframes, Wireflow and Moqups.
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.
An open source wireframe to app tool powered by Llama 3.2 vision. Upload a screenshot of a simple site/design & get code.
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.
Cacoo is a user-friendly online diagramming tool that allows you to create a variety of diagrams such as wireframes, flowcharts, UML diagrams, network diagrams, mindmaps, sitemaps, database diagrams, and more.
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.
Diagramo is an online flowchart software
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.
UXPin is a web-based system for managing design documents like wireframes, sitemaps, persona descriptions or flowcharts. It lets you upload image files, invite teammates to review and comment on them, and keep track of revisions.
HotGloo is a UX, wireframe and prototyping tool designed to build wireframes for web, mobile and wearables. Create and share fully interactive prototypes with your team and clients and gather feedback on the process.
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