Free Mockup Builder Alternatives

    The best free alternative to Mockup Builder is Pencil Project, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Mockup Builder and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Mockup Builder are Lucidchart (Freemium), Cacoo (Freemium), Marvel (Freemium) and Moqups (Freemium).

    This page was last updated Oct 19, 2021

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

      Discontinued

      It's Discontinued and no longer maintained.

      show more
      Pencil Project vs Mockup Builder opinions
      Most users think Pencil Project is a great alternative to Mockup Builder.
      Easier to use and extensive documentation and support available
      Positive comment over 2 years ago

      0
      extreme intuitive and easy... no bug related
      Positive comment over 3 years ago

      2
      Non commercial, versatile, quite complete, active development, local ((you choos when and to who share your projects), exports in png, pdf, web page, vector SVG graphics or Open/Libre office format.
      Positive comment about 3 years ago

      0
      • FreemiumProprietary
      • Online
      • Android
      • iPhone
      • Chrome OS
      • Android Tablet
      • iPad
      • Zapier
      • bambooHR
      • Amazon Web Services
      • Microsoft Office Powerpoint
      • Microsoft OneDrive
      • Jira
      • Microsoft Office Word
      • Google Drive
      • Slack
      • Google Drive - Docs
      • Quip
      • Microsoft Teams
      • Software as a Service (SaaS)
      • Salesforce.com
      • Google Apps
      • Microsoft Azure
      • Microsoft Office 365
      • Google Drive - Sheets
      • GitHub
      • Microsoft Office Suite
      • LinkedIn
      • Confluence
      • Microsoft Office Excel
      Lucidchart is a visual workspace that combines diagramming, collaboration, and data visualization to accelerate understanding and drive innovation. With this intuitive, cloud-based solution, everyone can work visually and collaborate in real time.
      show more


    2. 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.
      show more
      • FreemiumProprietary
      • Android
      • iPhone
      • Android Tablet
      • iPad
      • Apple Watch
      • Apple TV
      • Apple Messages
      • Software as a Service (SaaS)
      With the Marvel design platform, access all the core functionality you need to build digital products - wireframe, prototype and generate design specs in one place. Design anything, anywhere.
      No screenshots yet
    3. Moqups is an all-in-one online design platform that's smart, simple and fast. Go from diagrams to wireframes and prototypes without switching apps or updating across platforms.
      show more


    4. Wireflow is free, online, open source, real-time collaborative tool for creating beautiful user flow prototypes.
    5. Diagramo is an online flowchart software - diagrams (create, edit and share) - organization charts (create, edit and share) - network diagrams (create, edit and share) - graphs (create, edit and share)
      • FreeOpen Source
      • Online
      • Self-Hosted
      Mockup Designer, built with Backbone, Backbone-LocalStorage and Html2Canvas, is a super-easy-to-use mockup tool that uses the local storage of your browser as its backend. However the data layer is loosely coupled, so you can integrate with any RESTful API or any Backend service.
      • FreeOpen Source
      • Mac
      • Windows
      • Linux
      • Online
      • Self-Hosted
      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.
      • FreemiumProprietary
      • Online
      • Software as a Service (SaaS)
      Nothing to download/install, create and access your mockups from anywhere. Add pages with templates and define links to present a clickable prototype. Our components are of medium-fidelity not very sketchy or look too real. Its just right.
      show more
    Showing 10 of 20 alternatives