Alternatives to MockFlow for Windows with Free or Open Source License

  • 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...

    Open Source Mac Windows Linux Electron / Atom Shell Firefox

  • Lucidchart icon

    Lucidchart

    Online diagram and flowchart software that supports Microsoft Visio import and can work on any operating system.

    Freemium Mac Windows Linux Web / Cloud iPad Chrome ... Google Apps

  • Prototype Composer

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

    Freemium Windows

  • Napkee icon

    Napkee Discontinued

    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

  • 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

  • NinjaMock icon

    NinjaMock

    A free tool for rapid prototyping, fun wireframing and quick mockups. Create mobile app wireframes for iOS, Android, Windows Phone...

    Free Personal Mac Windows Web / Cloud

  • Presentator.io icon

    Presentator.io

    Presentator is a free web application that allows you to present your designs in an easy, organized and interactive way.

    Free Mac Windows Linux Android iPhone Blackberry ... iPad