Compare the Top Free Prototyping Software as of June 2025

What is Free Prototyping Software?

Prototyping software allows designers and developers to create interactive models of websites, applications, or systems before they are fully built. These tools enable users to visualize and test ideas quickly, helping to refine concepts and gather feedback early in the design process. They often provide drag-and-drop interfaces, allowing users to assemble prototypes without needing advanced coding skills. Prototyping software can simulate user interactions and workflows, providing a realistic preview of how the final product will function. This iterative approach saves time and resources by identifying design issues and potential improvements before development begins. Compare and read user reviews of the best Free Prototyping software currently available using the table below. This list is updated regularly.

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    Miro

    Miro

    Miro

    Keep your team's minds in sync with Miro (formerly RealtimeBoard and AWW app). A virtual whiteboard and remote collaboration tool, Miro helps cross-functional teams work more efficiently together to build great things. The platform allows teams to ideate, visualize, and share ideas without any boundaries. It comes with over 200 pre-made templates for capturing and visualizing ideas, collaboration tools such as comments, chat, screen sharing, and video chat, and integrations with popular business tools. Miro AI. You and your team, supercharged. You're here to create the next big thing and we're here to help. Unlock the power of your ideas with Miro AI – your new launchpad for creativity, collaboration, and productivity.
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    Starting Price: $8 per month
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    Lucidchart

    Lucidchart

    Lucid Software

    Lucidchart is an advanced diagramming tool designed to help businesses and teams optimize their processes, systems, and workflows with intelligent, data-driven diagrams. The platform combines powerful AI features, such as AI-generated diagrams, data linking, and real-time collaboration, to make visualizing complex systems and architectures faster and more efficient. Lucidchart supports multiple use cases, including process maps, flowcharts, technical diagrams, organizational charts, and systems planning. Its seamless integrations with popular apps like Jira, Confluence, Slack, and Teams allow for enhanced collaboration, enabling teams to align on priorities and act on insights quickly. Lucidchart is the perfect tool for anyone looking to create professional diagrams in less time, while fostering better decision-making and innovation.
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    Starting Price: $7.95/month/user
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    Pencil Project
    Pencil is an open source user interface drafting tool that Evolus builds on Mozilla 's technologies . This tool helps analysts and application interface developers to quickly draw application interfaces to document communication with customers in the process of collecting requirements or as a basis for the team. application development. The Pencil tool building project is one of Evolus' efforts to give back to the community. It is for that reason that Pencil has been released as an open source tool (GPL license) so that anyone can have the opportunity to use and access its source code to adjust and upgrade. . Pencil can be deployed as an add-on to the Mozilla Firefox 3 browser or as a standalone application. Pencil is a cross-platform application and can work well on any platform that Mozilla Firefox 3 supports.
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