Alternatives to MockFlow for Windows with Free or Open Source License

Platforms

Desktop

Web / Online

Wearable

Browsers

TV / Livingroom

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  • Pencil Project icon

    Pencil Project

    Pencil is a standalone app or Firefox extension that lets you create diagrams or UI mockups. It doesn't have collaboration/multi-user features. The Pencil Projects unique mission is to build a free and opensource tool for...

    Open Source Mac Windows Linux Electron / Atom Shell Firefox

  • Prototype Composer

    Serena Prototype Composer - the best agile application prototyping tool is now free! View the demo, take the product tour, or download it free today.

    Freemium Windows

    No features added Add a feature
  • Napkee icon

    Napkee

    Napkee makes your Balsamiq Mockups come alive. Import a BMML and export to web or flex code in a few clicks.

    Open Source Mac Windows Linux

    No features added Add a feature
    • Discontinued The program seems to be no longer updated. Last version, 2.0 alpha 3, released on October 30, 2013, can be still downloaded from the official website.
  • Quant-UX icon

    Quant-UX

    Quant-UX is an integrated Prototyping and Analytics software. It allows you to design, test and analyze interaction prototypes.

    Freemium Mac Windows Linux

    No features added Add a feature
  • NinjaMock icon

    NinjaMock

    A free tool for rapid prototyping, fun wireframing and quick mockups. Create mobile app wireframes for iOS, Android, Windows Phone, Surface, design website mockups, share, collaborate and test usability for free!

    Free Personal Mac Windows Web / Cloud

    No features added Add a feature